US3812840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable grill
Assignee: Individual
•
Filing: 1972-12-12
•
Granted: 1974-05-28
•
Expires: 1992-12-12
Abstract
Abstract A closable cooking device in the nature of a charcoal fired smoke oven has a bottom portion containing a heat grid supporting non-combustible heat absorbing and radiating material and an opening through the lower wall of the bottom portion, whereby the device may be placed upon a camping stove or the like. This exposes the radiating material to direct flame, whereupon it tends to produce characteristic barbeque oven cooking without utilizing charcoal or other fuel supply normally used for this purpose.
Inventors
- 👤 K Whaler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:18
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; A47J37/07; A47J37/0704; A47J37/0713
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
119 words
A portable cooking device comprising: a. a base unit having a bottom wall and side walls defining a compartment with an open top, said bottom wall having an opening therethrough and being adapted to rest upon a campstove or the like having a heat source alignable beneath said opening, b. an open heat grid supported in said base unit and positioned above said opening in said bottom wall, c. non-combustible heat absorbing and radiating stones loosely packed and supported on said heat grid to a depth sufficient to substantially block the passage of direct flame therethrough but permit convection currents to pass therethrough, and d. a food grid mounted in said base unit and positioned above said heat grid.
Claim 2
Dependent Claim
119 words
A portable cooking device comprising: a. a base unit having a bottom wall and side walls defining a compartment with an open top, said bottom wall having an opening therethrough and being adapted to rest upon a campstove or the like having a heat source alignable beneath said opening, b. an open heat grid supported in said base unit and positioned above said opening in said bottom wall, c. non-combustible heat absorbing and radiating stones loosely packed and supported on said heat grid to a depth sufficient to substantially block the passage of direct flame therethrough but permit convection currents to pass therethrough, and d. a food grid mounted in said base unit and positioned above said heat grid.
Claim 3
Dependent Claim
40 words
A portable cooking device as set forth in claim 1 including: a. a cover unit hingedly attached to said base unit and adapted to selectively close said open top, said cover unit defining a compartment positionable above said food grid.
Claim 4
Dependent Claim
35 words
A portable cooking device as set forth in claim 1 including: a. cover means adapted to selectively close said bottom wall opening whereby said device is convertible for cooking with conventional charcoal and the like.
Claim 5
Dependent Claim
20 words
A portable cooking device as set forth in claim 1 wherein: a. said device is constructed primarily of cast metal.
Claim 6
Dependent Claim
20 words
A portable cooking device as set forth in claim 1 wherein: a. said device is constructed primarily of sheet metal.
Claim 7
Dependent Claim
22 words
The device as set forth in claim 1 including: a. legs secured to said base unit and extending beneath said bottom wall.
References Cited (Backward Citations)
FR412341A
Cited
US1725521A
Cited
US3298361A
Cited
US3395691A
Cited
US3611911A
Cited
US3693534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |