US3667374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deep fat fryer apparatus
Assignee: Progressive Products Corp
•
Filing: 1970-10-14
•
Granted: 1972-06-06
•
Expires: 1990-10-14
Abstract
Abstract A deep fat fryer having a pump for circulating cooking fluid or oil in a cooking receptacle and a filter for removing foreign substances from the cooking oil. Cooking fluid circulated through the receptacle flow over the heating elements and sweeps along foreign particles in the fluid which are removed by a filter interposed in the flow path of the cooking fluid.
Inventors
- 👤 Brandon M Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:17
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/12; A47J37/1223
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
172 words
A deep fat fryer comprising a housing, an open top cooking basin mounted within said housing, said basin having side and bottom walls for receiving cooking fluid to a predetermined level, a heating element located within said basin and adjacent said bottom wall for heating the cooking fluid, pump means located adjacent to one of said side walls, a filter element in said basin and located below and adjacent to the predetermined level of the cooking fluid, the suction side of said pump means communicating with the interior of said filter element to draw cooking fluid therethrough and remove foreign material from the fluid, at least one discharge outlet from said pump means, said discharge outlet communicating with said cooking basin adjacent to said bottom wall and substantially in alignment with said heating element, and means for operating said pump means to circulate the cooking fluid, whereby said cooking fluid is circulated around said heating element and through said cooking basin while foreign material is removed from circulation by said filter element.
Claim 2
Dependent Claim
172 words
A deep fat fryer comprising a housing, an open top cooking basin mounted within said housing, said basin having side and bottom walls for receiving cooking fluid to a predetermined level, a heating element located within said basin and adjacent said bottom wall for heating the cooking fluid, pump means located adjacent to one of said side walls, a filter element in said basin and located below and adjacent to the predetermined level of the cooking fluid, the suction side of said pump means communicating with the interior of said filter element to draw cooking fluid therethrough and remove foreign material from the fluid, at least one discharge outlet from said pump means, said discharge outlet communicating with said cooking basin adjacent to said bottom wall and substantially in alignment with said heating element, and means for operating said pump means to circulate the cooking fluid, whereby said cooking fluid is circulated around said heating element and through said cooking basin while foreign material is removed from circulation by said filter element.
Claim 3
Dependent Claim
52 words
The structure of claim 1 including an electrical control console hingedly mounted on said housing, said heating element being connected to said console, and means on said console for controlling the temperature of said heating element, whereby swinging said console upwardly moves said heating element out of said basin to facilitate cleaning.
Claim 4
Dependent Claim
32 words
The structure of claim 1 in which said filter element includes an open top housing, and screen means disposed across said open top housing to remove foreign matter from said cooking fluid.
Claim 5
Dependent Claim
53 words
The structure of claim 1 including a nozzle on the end of said discharge outlet, said nozzle having an opening at one extremity to permit direct flow of cooking fluid from the pump into said basin, and a plurality of apertures adjacent to said extremity to provide angularly disposed jets of cooking fluid.
Claim 6
Dependent Claim
38 words
The structure of claim 1 in which said heating element includes a plurality of generally parallel convolutions disposed in spaced groups and said discharge outlet from said pump is disposed in alignment with the space between adjacent groups.
Claim 7
Dependent Claim
28 words
The structure of claim 1 including a pair of spaced discharge outlets adjacent to said bottom wall for returning cooking fluid from said pump means to said basin.
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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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |