Patent US3618587A successfully refreshed from Google Patents.
US3618587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease pressure-pulsing cooker
Assignee: Individual
•
Filing: 1969-07-18
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Granted: 1971-11-09
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Expires: 1989-07-18
Abstract
Abstract A deep well grease pressure-frying appliance with an electrical circuit including a pressure-responsive switch and a electromagnetic vent valve for intermittently venting the vessel into a bottom chamber so as to provide periodic pressure pulsations or surges in the grease, which provides quicker and deeper penetration of the grease into a food article contained in the vessel.
Inventors
- 👤 Maurice W Lee Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:12
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/08; A47J27/0802; A47J37/00; A47J37/12; A47J37/1204; A47J37/1209
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
In a pressure-cooking appliance, a pressure vessel, means to elevate the vessel to a cooking temperature, and means to intermittently exhaust the pressure vessel during a cooking period including a vent valve of the electromagnetic type provided with an operating winding holding the valve closed when energized, and means comprising an energizing circuit connected to said winding and including a normally closed pressure-responsive switch communicatively connected to the pressure vessel to open said vent valve when the pressure in the vessel reaches a predetermined value.
Claim 2
Dependent Claim
85 words
In a pressure-cooking appliance, a pressure vessel, means to elevate the vessel to a cooking temperature, and means to intermittently exhaust the pressure vessel during a cooking period including a vent valve of the electromagnetic type provided with an operating winding holding the valve closed when energized, and means comprising an energizing circuit connected to said winding and including a normally closed pressure-responsive switch communicatively connected to the pressure vessel to open said vent valve when the pressure in the vessel reaches a predetermined value.
Claim 3
Dependent Claim
20 words
The pressure-cooking appliance of claim 1, and further means to open said energizing circuit after a predetermined cooking time period.
Claim 4
Dependent Claim
15 words
The pressure-cooking appliance of claim 2, and wherein said further means comprises time-controlled switch means.
Claim 5
Dependent Claim
46 words
The pressure-cooking appliance of claim 1, and further including a hollow base supporting said pressure vessel for forming an exhaust chamber, and wherein the means to exhaust the pressure vessel further includes conduit means communicatively connecting the vessel to said exhaust chamber through said Vent valve.
Claim 6
Dependent Claim
16 words
The pressure-cooking appliance of claim 4, and wherein said switch is mounted within said hollow base.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |