US4214516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barbecue oven
Assignee: Individual
•
Filing: 1979-02-08
•
Granted: 1980-07-29
•
Expires: 1999-02-08
Abstract
Abstract A barbecue oven comprising a barbecue compartment having a door hingedly mounted in a door opening in a front wall of the compartment and spaced from a top and bottom wall thereof. A heating unit is provided in the barbecue compartment and having an elongate heat-radiating surface disposed the side walls and positioned between a top edge of the door opening and the top wall to radiate heat downwardly towards a spit turret in the compartment. The spit turret is drivingly secured in the compartment between the side walls and disposed in the path of radiation of the radiating surface. Drive means is provided to rotate the turret. A liquid collecting tray is provided in at least a portion of the bottom wall below the spit turret to collect hot liquids dripping from foodstuff supported by the spit turret.
Inventors
- 👤 V. L. Friedl
- 👤 B. Mascetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:14
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/04; A47J37/041
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
249 words
A barbecue oven comprising a barbecue compartment defined by vertical spaced apart side walls, a back wall, top and bottom walls and a front wall; a door hingedly mounted in a door opening in said front wall and spaced from said top and bottom walls, a heating unit in said barbecue compartment having an elongate heat radiating surface disposed intermediate said side walls and positioned between a top edge of said door opening and said top wall to radiate heat downwardly towards said spit turret, a spit turret drivingly secured in said compartment between said side walls and disposed in the path of radiation of said radiating surface, drive means to rotate said turret, a liquid collecting tray in at least a portion of said bottom wall below said spit turret to collect hot liquids dripping from foodstuff supported by said spit turret, said spit turret having a rotatable drive shaft having a skewer support disc secured adjacent one end thereof, a disc-shaped drive drum secured adjacent the other end thereof, said drive drum having a plurality of skewer engaging sockets therein disposed in a circumferential axis of a front face thereof with their long axis parallel to said drive shaft; each said socket being secured to a planetary gear rotatably driven by a drive gear secured to said rotatable drive shaft to cause rotation of said sockets, said drive drum housing said drive and planetary gears therein; each said socket being secured in a pressure seal bearing arrangement.
Claim 2
Dependent Claim
249 words
A barbecue oven comprising a barbecue compartment defined by vertical spaced apart side walls, a back wall, top and bottom walls and a front wall; a door hingedly mounted in a door opening in said front wall and spaced from said top and bottom walls, a heating unit in said barbecue compartment having an elongate heat radiating surface disposed intermediate said side walls and positioned between a top edge of said door opening and said top wall to radiate heat downwardly towards said spit turret, a spit turret drivingly secured in said compartment between said side walls and disposed in the path of radiation of said radiating surface, drive means to rotate said turret, a liquid collecting tray in at least a portion of said bottom wall below said spit turret to collect hot liquids dripping from foodstuff supported by said spit turret, said spit turret having a rotatable drive shaft having a skewer support disc secured adjacent one end thereof, a disc-shaped drive drum secured adjacent the other end thereof, said drive drum having a plurality of skewer engaging sockets therein disposed in a circumferential axis of a front face thereof with their long axis parallel to said drive shaft; each said socket being secured to a planetary gear rotatably driven by a drive gear secured to said rotatable drive shaft to cause rotation of said sockets, said drive drum housing said drive and planetary gears therein; each said socket being secured in a pressure seal bearing arrangement.
Claim 3
Dependent Claim
55 words
A barbecue oven as claimed in claim 1, wherein a heat deflector wall is provided in said compartment spaced from said top wall intermediate said heating unit and back wall to transmit convection heat in said compartment from said heating unit in the direction of said spit turret to increase the temperature in said compartment.
Claim 4
Dependent Claim
35 words
A barbecue oven as claimed in claim 2, wherein said heat radiating surface is a gas conductive porous ceramic rectangular surface, the plane of said heat radiating surface being angulated to face said spit turret.
Claim 5
Dependent Claim
39 words
A barbecue oven as claimed in claim 3, wherein said heat deflector wall is provided with a plurality of fins on an outer heating surface thereof, said convection wall being spaced from said top wall of said barbecue compartment.
Claim 6
Dependent Claim
43 words
A barbecue oven as claimed in claim 2, wherein said door is provided with a pressure applying hinge in a respective lower side edge thereof, said hinge applying closing pressure against said door when positioned in a closed position against said door opening.
Claim 7
Dependent Claim
127 words
A barbecue oven as claimed in claim 5, wherein said hinge comprises a hinge flange secured to said front wall at right angles thereto, a hinge pin in each lower marginal side edge of said door secured for axial rotation in a respective hinge bore of said flange a predetermined distance from said front wall forwardly of the central plane of said door, a spring loaded ball in each said marginal side edge biased outwardly from a surface of said side edge, a ball receiving bore in said hinge flange offset from the central longitudinal axis of said hinge pin and positioned to receive a portion of said springeloaded ball therein to cause said ball to exert forward biasing pressure on said door toward said door opening.
Claim 8
Dependent Claim
61 words
A barbecue oven as claimed in claim 6, wherein said ball receiving cavity is positioned above said hinge pin bore between said hinge pin and said front wall, and a further ball receiving cavity below said hinge pin to retain said door in a downward open position when said door is displaced on its hinge pins clear of said door opening.
Claim 9
Dependent Claim
132 words
A barbecue oven as claimed in claim 1, wherein said pressure seal bearing arrangement comprises a housing secured in a front wall of said drive drum, one or more friction bearing sleeves about said socket and received in rotational fit within said housing, said planetary gear being secured to an inner end of said socket, one or more O-ring front seals about said socket forwardly of said friction bearing sleeve and housing, an O-ring washer secured about a forward portion of said socket in front of one or more said O-ring seals, and pressure applying means urging said O-ring flange against said one or more O-ring seals to provide a pressure seal between said socket and said housing to prevent ingress of liquids within said friction bearing sleeves and disc drive drum.
Claim 10
Dependent Claim
100 words
A barbecue oven as claimed in claim 8, wherein said pressure applying means is a helical spring about said housing and compressed between an inner surface of said front wall of said drive drum and an inner pusher ring positioned about said socket in a rear portion thereof, a one or more rear O-ring seal about said rear portion between said inner pusher ring and said planetary gear, said helical spring applying pressure against said planetary gear through said rear seal and inner pusher ring to bias said socket inwardly and maintain said front and rear seal under sealing pressure.
Claim 11
Dependent Claim
68 words
A barbecue oven as claimed in claim 1 wherein said drive means comprises a drive gear freely rotatable about a drive shaft of said spit turret, a crank arm secured to said drive shaft, a coupler connecting said crank arm to said drive gear to permit said drive shaft to be rotated by said drive gear through said coupler and crank arm when said drive gear is rotated.
Claim 12
Dependent Claim
41 words
A barbecue oven as claimed in claim 10 wherein said coupler is securable to an end portion of said crank arm to impart manual rotational displacement to said drive shaft and disconnecting said drive gear from engagement with said drive shaft.
Claim 13
Dependent Claim
86 words
A barbecue oven as claimed in claim 1 wherein said drive means includes an electric motor to rotate said spit turret, a timer switch to automatically operate a cooking cycle by energizing said motor for a predetermined cycle, a door switch to deenergize said motor when said door is open and to shut-off said heating unit, and a further switch in parallel with said door switch to energize said motor when said door is open whereby to permit removal of skewers removably secured to said turret.
Claim 14
Dependent Claim
114 words
A barbecue oven as claimed in claim 1 wherein said drive gear is in toothed engagement with said planetary gear and secured to a self-aligning bearing extending through a circular bore in one of said side walls, said bore and a bearing connecting portion extending through said wall being of circular cross-section with said bore being of greater diameter, a wall deflection groove in a portion of the circumference of said bearing connecting portion, a locking key secured to said wall and extending into said wall deflection groove, said deflection groove being wider and deeper than the thickness and length of said key portion disposed within said groove to permit said wall to deflect.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-29 | 1984-01-28 | 1984-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-29 | 1988-01-28 | 1988-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-29 | 1992-01-28 | 1992-07-29 | $7700.00 | Window Closed / Lapsed |