Quadra-Fire Edge60, Owner'S Manual

Page 1: ...g or other flammable materials Keep clothing furniture draperies and other flammable materials away HOT SURFACES Glass and other surfaces are hot during operation AND cool down CAUTION WARNING Please read this entire manual before installation and use of this pellet fuel burning room heater Failure to follow these instructions could result in property damage bodily injury or even death Do not stor...

Page 2: ...rfillhopper CHAUDLORSDEL OPÉRATION NEPASTOUCHER GARDEZLESENFANTSETLESVÊTEMENTSLOINDEL ESPACEDÉSIGNÉDEL INSTALLATION LECONTACT PEUTCAUSERDESBRÛLURESÀLAPEAU VOIRL ÉTIQUETTEETLESINSTRUCTIONS Opérez cet appareil avec le couvercle de la trémie fermé Le défaut de ne pas suivre les instructions peut résulter sous certaines conditions en une combustion des émissions des produits venant de la trémie Ne pas...

Page 3: ...ial 28 F Door Opening Clearances 29 30 G Combustible Mantel Fuel Loading Clearance 31 H Non Combustible Materials 32 I Combustible Materials 32 Section 7 Installation of Fireplace A Position the Fireplace 33 B Sub Floor Material Securing Fireplace 33 C Junction Box and Wiring Diagram 34 D Connecting Wall Control to Fireplace 35 E Thermostat Wall Control Installation 34 F Flue Collar Installation 3...

Page 4: ...Page 7051 158 April 9 2009 R EDGE 60 Pellet Fireplace ...

Page 5: ...R R R April 9 2009 7051 158 Page EDGE 60 Pellet Fireplace ...

Page 6: ...STM E1509 04 ULC S627 00 and ULC ORD C1482 Room Heater Pellet Fuel Burning type and UM 84 HUD Mobile Home Approved FCC Complies with Part 15 of FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Emissions Rating EPA Complianc...

Page 7: ... as fireplace Alert children and adults to hazards of high temperatures High temperatures may ignite clothing or other flammable materials Keep clothing furniture draperies and other flammable materials away WARNING 2 Operating Instructions User s Guide WARNING Do not operate appliance before reading and understanding the operating instructions in both of the Owner s and Thermostat Wall Control ma...

Page 8: ...age 12 for instructions Performance Higher ash content requires the ash drawer to be emptied more frequently Hardwoods require more air to burn properly Set wall control to Utility Pellet if the firepot and ash pan are filling quickly This will cause the auto clean system to empty the firepot more often Premium wood pellets produce the highest heat output Burning pellets longer than 1 1 2 inches 3...

Page 9: ... to manually control the heat output levels Adjust the heat output levels by using the HEAT OUTPUT LEVEL screen Figure 9 2 Automatic Manual Off Medium 3 Auto Clean Firepot System Your appliance is equipped with an automatic firepot cleaning system that will change the frequency of cleaning based on the fuel being burned The auto clean system will clean itself immediately on initial plug in If ther...

Page 10: ...s not selected your appliance will not operate properly For example if you have selected wood pellets and you are burning corn the appliance may not light it may go out or overfeed Figure 10 1 Sunflower Seeds Corn Utility Pellet Softwood Pellet Wheat Hardwood Pellet DONE SELECT FUEL SELECTION I Ignition Cycles The fireplace engine is controlled by the digital thermostat wall control The digital di...

Page 11: ...ration 4 Shutdown Cycle Once your home has reached your set temperature Appliance will stop feeding fuel and allow the fire to dimin ish Convection blower will continue to run until the appliance cools to appropriate temperature Appliance will begin the auto clean cycle 5 Auto Clean Cycle The firepot auto clean system will cycle When the appliance is first plugged in When the house reaches tempera...

Page 12: ...olt power cord sold as a separate accessory does not charge the battery 13 Volts 12 Volts 11 Volts Battery Below 10 Volts Figure 12 3 Operating on Battery Back Up A battery icon appears on your wall control to let you know you are now operating on battery power Figure 12 3 The fire must be manually lit as the appliance will no longer automatically light Follow the instructions in the Wall Control ...

Page 13: ...ont of the appliance High temperatures may ignite clothing furniture or draperies Maintain a minimum clearance of 36 inches 914mm in front of appliance NOTICE Clearances may only be reduced by means ap proved by the regulatory authority having jurisdiction Mantel Avoid placing candles and other heat sensitive objects on mantel or hearth Heat may damage these objects MAINT BURN 73 Set at 73 12 30 P...

Page 14: ...tch next to the power switch that as you slide the appliance out it will ensure the auto clean system and the auger will not run but the blowers will operate After servicing restart with the AUTO MANUAL SETTINGS screen Figure 14 1 Follow the detailed instructions found in this section for each step listed in the chart below Cleaning or Inspection Frequency Daily Weekly Every 2 Weeks Monthly Yearly...

Page 15: ...uildup exceeds half way point in firepot Failure to do so could result in smoking sooting and pos sible hopper fires Figure 16 2 Figure 15 2 One bolt located on each side of fireplace Pull fireplace toward you until fully extended Shown with Front Removed Rails Figure 15 3 1 Follow the proper shutdown procedure found on page 14 2 Remove the Front Lay it on a soft surface to prevent scratching 3 Re...

Page 16: ...Disposal of Ashes WARNING RISK OF FIRE Keep combustible materials gasoline and other flammable vapors and liquids clear of appliance Do NOT store flammable materials in the appliance s vicinity Do NOT use gasoline lantern fuel kerosene charcoal lighter fluid or similar liquids to start or freshen up a fire in this heater Keep all such liquids well away from the heater while it is in use as combust...

Page 17: ...for baffle removal on page 50 2 Vacuum the ash from the heat exchanger with an upholstery brush to remove the majority of the ash Be sure to vacuum the back of the baffle also Inspect the drop tube and remove any residue build up in the drop tube Figure 17 1 4 Use the crevice tool to finish cleaning the heat exchanger fins It is critical that the 2 exhaust exits at the back of the firebox floor le...

Page 18: ...tion b It may be necessary to use your firepot clean out tool to chip away material that has built up on the sides of the firepot and to push out any clinkers Larger clinkers may have to be removed from the top of the firepot Corn clinkers can be especially difficult to break up If the clinker adheres to the sides of the firepot you will need to manually clean the firepot c After power is restored...

Page 19: ... and firebox should be inspected periodically to make sure there is a good seal If the gasket is frayed or damaged replace with a new one Caution Handle glass assembly with care Glass is breakable Avoid striking scratching or slamming glass Avoid abrasive cleaners Do not clean glass while it is hot 12 Preparing Firebox for Non Burn Season Frequency Yearly By Homeowner a Be sure the wall control sc...

Page 20: ...has tall flames with black tails and is lazy 4 The flame height adjustment needs to be reduced or the firepot needs cleaning Heat exchanger combustion blower needs cleaning 5 Excessive smokey start up 5 Either the firepot is dirty or there is too much fuel at start up and not enough air 6 Large flame at start up 6 This is normal Flame will settle down once the fire is established Some smoke is nor...

Page 21: ...Components may need cleaning Confirm setting matches burning fuel Adjust flame height Clean the firebox heat exhanger convection blower firepot and ash pan If problem persists call your dealer CHECK ASHPAN Auto clean jammed Turn the power switch OFF and then back ON to clear error code If ash pan is empty check for a jam Use the clean out tool and firmly push in the firepot floor holes and flex sp...

Page 22: ...through the ceiling and roof Installing the required outside air kit will affect the loca tion of the vent termination CAUTION If burning shelled field corn you must use ap proved venting specifically designed for corn to prevent corrosion or degradation Follow the instructions from the venting manufacturer Marginal Location Below peak Location NOT recommended Not the highest point of the roof Win...

Page 23: ...rent floor level you will notice higher temperatures near the appli ance CAUTION The wall control is an integral part of the appli ance No other wall control or thermostat can be substituted Wire Nuts 7 16 Socket Wrench Framing Square Electric Drill Bits Self Tapping Screws Outside Air Required May also need Vent Support Straps Class L or P Pellet Vent Reciprocating Saw Hammer Phillips Screwdriver...

Page 24: ...t the nailing flanges depending on the thick ness of your finishing material 7 IT IS CRUCIAL FIREPLACE IS ROBUSTLY SECURED Slide the fireplace into place and secure to the floor with the securing brackets and to the wall See page 33 for detailed instructions 8 Attach the exhaust and outside air venting to the appliance 9 Hook up power and the wall control 10 Slide the fireplace out on the rail sys...

Page 25: ...commended for Service Space 30 in 762mm Recommended for Service Space 27 1 2 in 699mm 27 1 2 in 699mm 48 in 1219mm 26 7 8 in 682mm Top Vent 27 1 4 in 692mm Outside Air Right Left 14 1 4 in 362mm Junction Box 10 1 8 in 257mm Top Rear Vent Rear Outside Air 29 3 4 in 756mm See Section 8 for outside air locations Outside Air Kit is REQUIRED for all installations A Recommended Locations Figure 25 1 Loc...

Page 26: ...place A B C D inches 27 1 2 30 38 1 4 7 mm 699 762 972 178 If interior of chase will be drywalled add the thick ness to this measurement Adjust header height for a raised platform under fireplace Taking into consideration the maximum height allowed for loading fuel into the hopper B C A Header MUST NOT be notched D D extra space needed for securing fireplace to the floor and for outside air connec...

Page 27: ...embly This reduces heat loss through the chase It is required that firestops be installed every 10 ft 3 05m to control spread of fire but 8 ft is recommended to prevent heat loss Warning You must install false ceilings and ceiling firestops at each floor of the chase or every 10 ft 3 05 m to control spread of fire Hearth Home Technologies Inc suggests you sheetrock and tape or use an equivalent me...

Page 28: ...h the Mounting Frame The finish material can not be thicker than 1 1 2 inches 38mm to use this method Figure 28 3 Set the nailing flanges for sheet rock thickness and install the appliance Install the mounting frame Install the finishing material to edge of the mounting frame 3 Proud of the Mounting Frame This method is mainly used for a brick or stone installation When finishing material is proud...

Page 29: ... 127mm 4 1 2 in 114mm 4 in 102mm 3 1 2 in 89mm 1 2 in 13mm Mantel Leg Masonry Spacer Note The Masonry Spacer is used when the finishing material is brick or stone or any material that is proud to the mouting frame See page 28 for details Opening Clearances for the Curved Tuscan and Natural Fronts Appliance Finishing Material Mounting Frame TOP VIEW Edge of appliance outer skin Curved Front Figure ...

Page 30: ... In 190mm 9 in 229mm 1 2 in 13mm Opening Clearances for the Studio Front Masonry Spacer Note The Masonry Spacer is used when the finishing material is brick or stone or any material that is proud to the mounting frame See page 28 for details Appliance TOP VIEW Edge of appliance outer skin F Front Opening Clearance Cont d Studio Front Figure 30 1 ...

Page 31: ... 152mm 5 in 127mm 4 in 102mm 3 in 76mm 2 in 51mm 1 in 25mm 1 2 in 13mm 24 in 610mm 1 1 4 in 32mm 2 1 2 in 64mm 3 1 2 in 89mm 4 1 2 in 114mm 5 1 2 in 140mm 7 1 2 in 191mm 9 1 2 in 241mm 6 1 2 in 165mm 8 1 2 in 216mm 10 1 2 in 267mm 74 in 1880mm to Floor Floor Line Appliance Side View NOTE Be sure to consider the process of loading fuel when choosing and locating a mantel 1 1 rise to run ratio ...

Page 32: ...rials Materials made of or surfaced with any of the following materials Wood Plant fibers Plastic Compressed paper Any material that can ignite and burn flame proofed or not plastered or un plastered WARNING Risk of Fire You must maintain clearances Do NOT cover metal fireplace front with combustible materials Install combustible materials only to specified clearances on top front and side edges N...

Page 33: ...d for a concrete attachment Figure 33 1 There are 4 holes on each flange Secure each flange with 2 bolts Choose the holes that best secures the fireplace to the floor Please note that you always want to include the washer on the bolts that attaches to the floor You can re use the same bolts and washers that attach the fireplace to the pallet However there is also a full set of bolts and washers in...

Page 34: ...hock Hazard A grounded metal outlet power supply is required for all installations Provides a positive ground path to earth for outer can of the fireplace Protects against possible electrical shock 1 Disconnect power supply providing power to the outlet box you intend to use 2 The power supply cord is inside a 7 1 2 foot 229cm long 3 8 inch 9 5mm flexible conduit cable located and attached to the ...

Page 35: ...steps below for a vertical or horizontal installation Vertical Installation 1 Remove the flue collar and gasket from the component pack Push out the 6 slugs in the gasket 2 Remove both the top and rear cover plates Save screws and plates for later re attachment 3 Place the orange flue gasket over the locating pins on the exhaust flue transition on the back of the fireplace Figure 35 2 4 Insert the...

Page 36: ... 7 Drill holes through the pipe walls directly into the flue collar one on each side 180 degrees apart Screw the pipe to the flue collar with 2 screws Figure 36 7 Flue Collar Pipe Liberally silicone all around flue collar before inserting into pipe Top Cover Plate Vertical Installation Cont d Figure 36 1 Locating Pin on Each Side Drill Holes for Screws above Locating Pins X Figure 36 2 Insert asse...

Page 37: ...ter line of regulator I 36 in USA 72 in Canada Clearance to service regulator vent outlet J 12 in Clearance to non mechanical air supply inlet to the building or the combustion air inlet to any other appliance K 10 ft horizontal 3 ft vertical Clearance to mechanical air supply L 7 ft Above paved sidewalk paved driveway located on public property M 12 in Under an open veranda porch deck or balcony ...

Page 38: ...he pellet appliance but consideration must be given to the total house demand House demand may consume the air needed for the appliance It may be necessary to add additional ventilation to the space in which the pellet appli ance is located Consult with your local HVAC professional to determine the ventilation demands for your house Vent Configurations To reduce probability of reverse drafting dur...

Page 39: ... fireplace Avoid installing the appliance near doors walkways or small isolated spaces Recessed lighting should be a sealed can design Attic hatches weather stripped or sealed Attic mounted duct work and air handler joints and seams taped or sealed Warning Risk of Asphyxiation Negative pressure can cause spillage of combustion fumes and soot C Negative Pressure Draft is the pressure difference nee...

Page 40: ...stitute or damaged vent components may impair safe operation WARNING RISK OF FIRE WARNING RISK OF INJURY OR PROPERTY DAMAGE Improper installation adjustment alteration service or maintenance can cause injury or property damage Refer to the owner s information manual provided with this appliance For assistance or additional information consult a qualified installer service agency or your dealer The...

Page 41: ...alent length of pipe is 12 feet 30m with altitude of 6 000 feet 152m you may use 3 or 4 inch 76 to 102mm diameter type L or PL vent The chart will help you in determining proper venting size according to the equivalent feet of pipe calculated previously and the altitude above sea level of this installation Figure 41 1 a Locate the calculated equivalent feet of pipe on the verti cal left side of th...

Page 42: ...Figure 42 1 Outside Air Inlet Locations H Outside Air Locations Considerations Outside Air 1 3 4 in 44mm 4 7 8 in 124mm C L C L C L C L Door Outside Air 1 3 4 in 44mm 4 7 8 in 125mm C L C L Door 9 1 4 in 235mm 4 7 8 in 24mm Rear Vent Outside Air C L C L Left Rear Corner Right Rear Corner Rear of Fireplace NOTE The fireplace ships from the factory with the left and right outside air covers installe...

Page 43: ...ure distance from floor to air vent opening in appli ance and mark location on wall Use saw to cut opening in wall Cut a 3 1 2 to 4 inches 89 102mm opening on inside wall Cut a 4 to 4 1 2 inches 102 114mm opening on out side of house 2 Use wire tie to secure flex pipe to collar assembly 3 Slide trim ring over flex pipe and run pipe through wall 4 Attach flex pipe not supplied to outside terminatio...

Page 44: ...al Exterior Figure 44 1 Figure 44 2 We recommend a minimum of 60 inches 1524mm vertical however above the eave is preferred Both installations are approved for mobile home instal lations Must use 3 or 4 inch 76 to 102mm L or PL Listed pellet venting or Listed double wall pipe and Quadra Fire Outside Air Kit in all installations Single wall pipe is approved for residential installa tions only NOTE ...

Page 45: ...m Minimum 12 in 305mm Minimum Figure 45 2 45 Degree Horizontal termination cap must be a minimum of 12 inches 305mm from the wall Approved for mobile home installations Must use 3 or 4 inch 76 102mm L or PL Listed pellet venting and a Quadra Fire Outside Air Kit in all installations NOTE In Canada where passage through a wall or partition of combustible construction is desired the installation sha...

Page 46: ... in accordance with the Manufacturers Home Safety Standard HUD CFR 3280 Part 24 SparkArrestor Cap Roof Flashing Storm Collar Joist Shield Firestop Approved Class L or PL Pellet Vent Figure 46 1 9 Mobile Home Installation WARNING Risk of Asphyxiation Never install in a sleeping room Consumes oxygen in the the room CAUTION Maintain the structural integrity of the floor wall ceiling and or roof of th...

Page 47: ... warranty Figure 47 1 Log fits over screws Left Log Log has indentations on the bottom to fit over the screw heads Log rests in front of screws Right Log Figure 47 3 Figure 47 4 1 Place the left log as shown There are 2 indentations in the bottom of the log to fit over the screw heads in the firebox Figures 47 1 and 47 2 2 Place the right log in front of the 2 screw heads in the firebox Figures 47...

Page 48: ...ll 4 fronts are mounted the same way Figure 48 2 Installing Front onto Mounting Frame Hinge on Fireplace Hinge on Front Start with Bottom Hinge Alignment and then Top Hinges Aligned Push Up on Spring Loaded Hinge Pin Locking Tab Push Locking Tab into Place to Hold Hinge Pin Figure 48 3 Figure 48 4 Figure 48 5 Figure 48 6 Door Stop Disassemble Re install 1 Using a Phillips Head screwdriver remove t...

Page 49: ...mperature heat resistant ceramic glass DO NOT REPLACE with any other material Alternate material may shatter and cause injury B Combustion Exhaust Blower Replacement 1 Follow the proper shut down procedures as outlined on page 14 Section 3 A 2 The combustion blower is mounted in the lower right rear of the appliance Figure 49 2 3 Use an 11 32 nut driver to loosen all six nuts but do not remove Rot...

Page 50: ... into V section and push down and the bottom of the latch will fall forward off of post Locating ears 1 on each side Fit behind bottom edge Figure 50 3 WARNING Risk of Injury Cast iron is a very heavy material The baffle is made of cast iron and therefore is heavy and awkward at times to maneuver Clear and prepare your work area before you begin 2 Remove the 2 bolts from the bottom left and right ...

Page 51: ...TION Igniter bad or poor harness connection Out of fuel or fuel is bridging in hopper Faulty firepot thermocouple connection has shorted Check connections if OK replace igniter Break up bridging pellets Refill hopper Replace the thermocouple Press Retry MIN FIREPOT TEMP Out of fuel Refill hopper Add handful of pellets to firepot to prime it Press Retry MAX DROP TUBE TEMP Stove in over heat conditi...

Page 52: ... 235mm 4 7 8 in 24mm 9 1 4 in 235mm Rear Vent Outside Air C L C L 37 1 2 in 953mm 16 1 2 in 419mm 14 1 4 in 362mm Outside Air 1 3 4 in 44mm 4 7 8 in 124mm Junction Box 3 4 in 19mm C L C L C L C L Front Outside Air 1 3 4 in 44mm 4 7 8 in 125mm C L C L Front C L 21 3 8 in 543mm Front View shown without a Front Rear View Top View Left Side View Right Side View 13 Reference Materials ...

Page 53: ...sembly The assembly includes the feed motor mounting bracket bearing and feed spring auger Function The hollow feed spring auger pulls pellets up the feed tube from the hopper area and drops them down the feed chute into the firepot 9 Firepot Location Inside firebox and is made of high quality ductile iron Function The floor of the firepot automatically opens for cleaning and is operated by the au...

Page 54: ...setting 19 Thermocouple Firepot Location On top of the firepot inside the thermocouple cover ceramic protection tube Function Sends a millivolt signal to the control board telling the control board there is a fire in the firepot 20 Thermocouple Drop Tube Location Bottom of the drop tube on the right side and attached with a wing nut Function Turns the convection blower on and off varies the speed ...

Page 55: ...up Power Supply Hopper Combustion Blower Feed Motor Exhaust Transition Figure 55 1 View of Left Rear Figure 55 2 View of Right Rear Baffle Firepot Ash Pan Thermocouple and Thermocouple Cover Heat Exchanger Front Back Pull fireplace toward you until fully extended Shown with Front Removed Rails One bolt located on each side of fireplace Figure 55 3 Rail System Figure 55 4 ...

Page 56: ...ril 9 2009 R EDGE 60 Pellet Fireplace A Exploded View of Fireplace 1 7 8 9 16 17 18 19 20 21 22 34 44 43 41 42 45 46 47 48 50 51 52 56 53 54 55 49 57 58 SEE FIG A SEE FIG B SEE FIG C SEE FIG D Figure 56 1 7025 010B 4 8 09 ...

Page 57: ...ce B Exploded Drawings Figure A 1 Auto Clean Motor Arm Assembly 1 2 3 4 6 5 Figure C 22 Firepot Riser Assembly 23 24 25 26 27 28 29 31 30 32 33 Glass Size 21 in W x 14 in H Figure D 34 Door Assembly 35 37 36 38 39 40 Figure B 9 Feed Assembly 10 11 12 13 14 15 ...

Page 58: ...410 0552 12 Gasket Feed Motor 7034 144 13 Bracket Motor Feed 7034 143 14 Optical Switch Assembly 7034 038 Y 15 Feed Motor Dc SRV7000 313 Y Collar Set 7 8 229 0520 16 Twin Ball Catch SRV7000 532 Y 17 Hopper Door Assembly SRV7051 013 Handle Hopper Lid 200 0110 18 Hinge Male 7034 138 19 Gasket Door Rope SRV7034 177 Y 20 Baffle SRV7034 148 21 Latch Baffle 7034 149 22 Firepot Riser Assembly SRV7034 002...

Page 59: ...78 Y 44 Face Plate Located Behind ARS Door 7034 124 45 Intake Shield 7034 224 46 Magnetic Switch 7000 375 Y 47 Latch Bracket Assembly 7034 049 Y 48 Wire Harness Battery Backup 7034 202 Y 49 Wire Harness Power Receptacle SRV7051 152 Y 50 Outside Air Gasket SRV7051 126 Y 51 Vacuum Switch SRV7000 531 Y 52 Power Supply Assembly SRV7000 443 Y 53 Gasket Blower Combustion Between Housing Stove SRV7000 33...

Page 60: ...34 219 Y Wire Harness Door Hopper SRV7034 192 Y Wire Harness Door Interlock SRV7051 113 Y Wire Harness Ignitor SRV7034 199 Y Wire Harness Power Out Ac 7034 220 Y Wire Harness Power Out Dc 7034 221 Y Wire Harness Snap Disc 7034 193 Y ACCESSORIES 12 Volt Power Cord 12VCORD AE Y Decorative Front Curve Black DF E60CUR BK Curve Brushed Nickel DF E60CUR BN Natural Black DF E60NAT BK Studio Black DF E60S...

Page 61: ...Y Screw 1 4 20X5 8 Phillips Pan Head Qty 24 7000 398 24 Y Screw Pan Head Philips 10 32 X 1 4 Qty 24 229 1230 24 Y Screw Flat Head Philips 8 32X1 2 Qty 10 832 0860 Screw Pan Head Philips 10 32 X 3 8 Qty 40 21799A 40 Y Screw Pan Head Philips 8 32 X 3 4 Qty 24 229 1100 24 Y Screw Pan Head Philips 8 32 X 3 8 Qty 40 225 0500 40 Y Screw Sheet Metal 8 X 1 2 S Grip Qty 40 12460 40 Y Washer 1 4 Sae Qty 24 ...

Page 62: ...Page 62 7051 158 April 9 2009 R EDGE 60 Pellet Fireplace Date of Service Performed By Description of Service F Service And Maintenance Log ...

Page 63: ...R R R April 9 2009 7051 158 Page 63 EDGE 60 Pellet Fireplace Date of Service Performed By Description of Service F Service And Maintenance Log ...

Page 64: ... 6145502 6170481 6237588 6296474 6374822 6413079 6439226 6484712 6543698 6550687 6601579 6672860 6688302B2 6715724B2 6729551 6736133 6748940 6748942 6769426 6774802 6796302 6840261 6848441 6863064 6866205 6869278 6875012 6880275 6908039 6919884 D320652 D445174 D462436 Canada 1297749 2195264 2225408 2313972 Australia 780250 780403 1418504 or other U S and foreign patents pending Date purchased inst...