US4155294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooking apparatus for foodstuffs
Assignee: ROTOFRY SYSTEMS Inc
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Filing: 1977-10-25
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Granted: 1979-05-22
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Expires: 1997-10-25
Abstract
Abstract A housing encloses a rotatable apertured cage containing foodstuffs is located to be rotated in air heated and impelled to pass through the cage. In one aspect of the invention the impeller is laterally displaced from the cage. In another aspect of the invention the cage is formed as a drawer designed to be withdrawn from the housing to allow loading and unloading the foodstuffs therein and designed to close the housing when inserted for rotation.
Inventors
- 👤 Jerome Langhammer
- 👤 Richard C. Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:39
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/32; F24C15/322; F24C15/325; A; A47; A47J; A47J37/00; A47J37/04; A47J37/047
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
159 words
Means for cooking foodstuffs comprising: a substantially closed housing defined by walls, a container for foodstuffs rotatably mounted in said housing, to rotate about a transverse axis whose major component is horizontal, means for retaining foodstuffs in said container while said container is rotated by said rotation means, the sides of said container disposed radially from the axis of rotation having openings to allow the passage of gases therethrough, means for rotating said container about said axis, said container being slidably removable along the axis of said rotatable mounting from said housing and from engagement with said rotating means, an aperture in said housing allowing such slidable removal, means for substantially closing said aperture when said container is rotatably mounted in said housing, an impeller for gases arranged and designed to circulate the gases through said container, means for heating the gases impelled by said impeller, wherein said aperture closing means is mounted on said container for rotation therewith.
Claim 2
Dependent Claim
159 words
Means for cooking foodstuffs comprising: a substantially closed housing defined by walls, a container for foodstuffs rotatably mounted in said housing, to rotate about a transverse axis whose major component is horizontal, means for retaining foodstuffs in said container while said container is rotated by said rotation means, the sides of said container disposed radially from the axis of rotation having openings to allow the passage of gases therethrough, means for rotating said container about said axis, said container being slidably removable along the axis of said rotatable mounting from said housing and from engagement with said rotating means, an aperture in said housing allowing such slidable removal, means for substantially closing said aperture when said container is rotatably mounted in said housing, an impeller for gases arranged and designed to circulate the gases through said container, means for heating the gases impelled by said impeller, wherein said aperture closing means is mounted on said container for rotation therewith.
Claim 3
Dependent Claim
173 words
Means for cooking foodstuffs comprising: a substantially closed housing defined by walls, a container for foodstuffs rotatably mounted in said housing, to rotate about a transverse axis whose major component is horizontal, means for retaining foodstuffs in said container while said container is rotated by said rotation means, the sides of said container disposed radially from the axis of rotation having openings to allow the passage of gases therethrough, means for rotating said container about said axis, said container being slidably removable along the axis of said rotatable mounting from said housing and from engagement with said rotating means, an aperture in said housing allowing such slidable removal, means for substantially closing said aperture when said container is rotatably mounted in said housing, an impeller for gases arranged and designed to circulate the gases through said container, means for heating the gases impelled by said impeller, wherein said aperture closing means is mounted on said container and comprises a circular plate rotatable outside a wall of said housing and closing the aperture therein.
Claim 4
Dependent Claim
173 words
Means for cooking foodstuffs comprising: a substantially closed housing defined by walls, a container for foodstuffs rotatably mounted in said housing, to rotate about a transverse axis whose major component is horizontal, means for retaining foodstuffs in said container while said container is rotated by said rotation means, the sides of said container disposed radially from the axis of rotation having openings to allow the passage of gases therethrough, means for rotating said container about said axis, said container being slidably removable along the axis of said rotatable mounting from said housing and from engagement with said rotating means, an aperture in said housing allowing such slidable removal, means for substantially closing said aperture when said container is rotatably mounted in said housing, an impeller for gases arranged and designed to circulate the gases through said container, means for heating the gases impelled by said impeller, wherein said aperture closing means is mounted on said container and comprises a circular plate rotatable outside a wall of said housing and closing the aperture therein.
Claim 5
Dependent Claim
76 words
Means as claimed in claim 2 wherein the periphery of said circular plate is coaxial with the axis of rotation of said container and wherein rollers on the exterior of said housing support said plate for rotation of said plate and said container on said axis, and wherein the rotatable mounting for said container comprises said rollers and plate at one end of said frame and a rotatable mounting at the other end of said container.
References Cited (Backward Citations)
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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) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |