US3633491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive means for a rotisserie spit
Assignee: General Electric Co
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Filing: 1969-09-23
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Granted: 1972-01-11
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Expires: 1989-09-23
Abstract
Abstract A roasting oven having means for supporting a rotisserie spit for rotary movement within the oven cavity. One wall of the oven supports a gear motor having an output shaft with a first spit connector or chuck which is adapted to be coupled with one end of a standard spit to create a constant speed turning action spit. An alternate spit carrying a food basket is adapted to be coupled with a second spit connector that is freely supported on the first spit connector. An intermittent drive gear train is connected between the output shaft and the second spit connector whereby this second connector and hence the food basket has a slow, intermittent turning action for exposing first one side and then the opposite side of the food in the basket to a radiant heating source.
Inventors
- 👤 Milton S Williams Jr
- 👤 Christian A Eff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:20
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/04; A47J37/041; F; F24; F24C; F24C15/00; F24C15/16; F24C15/164
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
247 words
A roasting oven comprising walls defining an oven cooking cavity, rack means positioned within the oven, a pan supported on the rack, a pair of spaced standards attached to the top side of the pan and a rotisserie spit supported adjacent its opposite ends from the said standards for rotational movement with respect thereto, one wall of the oven supporting a motor drive mechanism which is adapted to be coupled with one end of the spit, said motor drive mechanism comprising an electric motor, a speed reducing gear train and an output shaft extending through an opening in said one wall, and a first constant speed spit connector supported on the said output shaft, a mounting means for supporting the mechanism adjacent the said one wall, and a second speed changing gear train cooperating with the said output shaft, and a second spit connector supported over the first said spit connector, said second gear train including a driving gear on the output shaft and an idler gear supported from the said mounting means, and a Geneva gear movement assembled between the said idler gear and the second spit connector to provide intermittent drive of one-half revolution for the second spit connector with a long dwell period between each half revolution, whereby a constant turning action may be obtained when a spit is coupled in the first spit connector while a reversible holding action may be obtained when an alternate spit is coupled in the second spit connector.
Claim 2
Dependent Claim
247 words
A roasting oven comprising walls defining an oven cooking cavity, rack means positioned within the oven, a pan supported on the rack, a pair of spaced standards attached to the top side of the pan and a rotisserie spit supported adjacent its opposite ends from the said standards for rotational movement with respect thereto, one wall of the oven supporting a motor drive mechanism which is adapted to be coupled with one end of the spit, said motor drive mechanism comprising an electric motor, a speed reducing gear train and an output shaft extending through an opening in said one wall, and a first constant speed spit connector supported on the said output shaft, a mounting means for supporting the mechanism adjacent the said one wall, and a second speed changing gear train cooperating with the said output shaft, and a second spit connector supported over the first said spit connector, said second gear train including a driving gear on the output shaft and an idler gear supported from the said mounting means, and a Geneva gear movement assembled between the said idler gear and the second spit connector to provide intermittent drive of one-half revolution for the second spit connector with a long dwell period between each half revolution, whereby a constant turning action may be obtained when a spit is coupled in the first spit connector while a reversible holding action may be obtained when an alternate spit is coupled in the second spit connector.
Claim 3
Dependent Claim
117 words
A roasting oven as recited in claim 1 wherein the first spit connector is in the form of a socket member having at least one flat side for mating engagement with a shaft of similar cross section, while the said first spit connector also serves as a shaft on which the said second spit connector is allowed to turn, the said second spit connector having indexing means such that an alternate spit for engagement with the second spit connector includes a spit end that is inserted into the socket of the first spit connector and is freely movable therein, said last-mentioned spit end having an indexing means cooperable with the indexing means of the second spit connector.
Claim 4
Dependent Claim
36 words
A roasting oven as recited in claim 2 wherein the said alternate spit carries a wire encloSure which may be opened to place food therein, and adjustable means for clamping the food in the wire enclosure.
Claim 5
Dependent Claim
177 words
A roasting oven having an oven cavity formed by a boxlike oven liner and a front-opening access door, heating means for cooking food placed within the oven liner, an oven rack supported from the walls of the oven liner, a pair of spaced standards supported on the oven rack, and a rotisserie spit adapted to be supported adjacent its opposite ends from the said standards for rotational movement with respect thereto, one wall of the oven liner supporting a gear motor on the outer side thereof and having an output shaft extending through an opening in said one wall, and a first spit connector fixed to the end of the output shaft, and a second spit connector freely supported on the said first spit connector, and an intermittent drive gear train connected between the output shaft and the second spit connector whereby the second spit connector has an intermittent movement comprising a series of fractional rotational movements and extended dwell periods, while the first spit connector has a constant rotational speed when the gear motor is energized.
Claim 6
Dependent Claim
177 words
A roasting oven having an oven cavity formed by a boxlike oven liner and a front-opening access door, heating means for cooking food placed within the oven liner, an oven rack supported from the walls of the oven liner, a pair of spaced standards supported on the oven rack, and a rotisserie spit adapted to be supported adjacent its opposite ends from the said standards for rotational movement with respect thereto, one wall of the oven liner supporting a gear motor on the outer side thereof and having an output shaft extending through an opening in said one wall, and a first spit connector fixed to the end of the output shaft, and a second spit connector freely supported on the said first spit connector, and an intermittent drive gear train connected between the output shaft and the second spit connector whereby the second spit connector has an intermittent movement comprising a series of fractional rotational movements and extended dwell periods, while the first spit connector has a constant rotational speed when the gear motor is energized.
Claim 7
Dependent Claim
76 words
A roaster oven as recited in claim 4 wherein there is a special spit for engagement with each of the two spit connectors, the spit for use with the first spit connector being of rodlike form on which the food is to be impaled, the spit for use with the second spit connector supporting an expandable wire enclosure which may be opened to place food therein, and adjustable means for clamping food within the wire enclosure.
Claim 8
Dependent Claim
74 words
A roasting oven as recited in claim 4 wherein the intermittent drive gear train comprises a driving pinion gear on the said output shaft; a speed reducing idler gear enmeshed therewith, said idler gear having associated therewith a gear sector at one side thereof, the said second spit connector having fixed thereto a driven pinion gear meshing with the said gear sector during a small fraction of the turning action of the gear sector.
Claim 9
Dependent Claim
198 words
A roaster oven having an oven cavity formed by a boxlike oven liner and a front-opening access door, radiant heating means for cooking food placed within the oven, a rotisserie spit on which food to be cooked is supported, means for supporting the spit within the oven for rotational movement, one wall of the oven liner supporting a gear motor that has an output shaft, a first spit connector fixed to the end of the output shaft for receiving one end of a rotisserie spit therein and imparting a slow constant speed turning action, and a second pit connector freely supported on the said first spit connector for receiving an alternate rotisserie spit therein and imparting a slow lost motion reversible turning action thereto, an intermittent drive gear train for controlling the movement of the second spit connector, said gear train comprising a driving gear on the said output shaft, and idler gear enmeshed therewith, said idler gear having associated therewith a gear sector at one side thereof, the said second spit connector having fixed thereto a driven pinion gear meshing with the said gear sector during a small fraction of the turning action of the gear sector.
Claim 10
Dependent Claim
198 words
A roaster oven having an oven cavity formed by a boxlike oven liner and a front-opening access door, radiant heating means for cooking food placed within the oven, a rotisserie spit on which food to be cooked is supported, means for supporting the spit within the oven for rotational movement, one wall of the oven liner supporting a gear motor that has an output shaft, a first spit connector fixed to the end of the output shaft for receiving one end of a rotisserie spit therein and imparting a slow constant speed turning action, and a second pit connector freely supported on the said first spit connector for receiving an alternate rotisserie spit therein and imparting a slow lost motion reversible turning action thereto, an intermittent drive gear train for controlling the movement of the second spit connector, said gear train comprising a driving gear on the said output shaft, and idler gear enmeshed therewith, said idler gear having associated therewith a gear sector at one side thereof, the said second spit connector having fixed thereto a driven pinion gear meshing with the said gear sector during a small fraction of the turning action of the gear sector.
Claim 11
Dependent Claim
50 words
A roaster oven as recited in claim 7 wherein the first spit is a rodlike member on which food is to be impaled, and the alternate rotisserie spit supports on expandable wire basket which may be opened to place food therein, and adjustable means for clamping food within the basket.
Claim 12
Dependent Claim
54 words
A roaster oven as recited in claim 8 wherein the end of the said alternate rotisserie spit that is coupled to the second spit connector has a central pin loosely fitted into the said first spit connector and a locking means that is adapted to engage with the end of the second spit connector.
References Cited (Backward Citations)
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |