US3596587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offtake for cooking equipment
Assignee: Individual
•
Filing: 1969-05-21
•
Granted: 1971-08-03
•
Expires: 1989-05-21
Abstract
Abstract A cooking equipment offtake comprising hood, duct and related appurtenances with attached heating means for raising the inner surface temperature of said offtake and thus preventing the condensation of grease thereon.
Inventors
- 👤 James E Klinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:57
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
119 words
An offtake system for the removal of vaporized grease from cooking equipment enclosed by a building structure to a remote point of egress comprising, hood means gathering the vaporized grease developed at said equipment, duct means extending through said structure and communicating said hood to said point of egress, said duct means comprising an inner channel and an outer channel in spaced relationship therewith, heat means for raising the temperature of the surfaces of said duct to a level precluding the depositing of condensed grease thereon as vaporized grease moves therethrough, said heat means being disposed in the space defined by said inner and outer channels of said duct means, and means insulating said structure From said heated duct.
Claim 2
Dependent Claim
119 words
An offtake system for the removal of vaporized grease from cooking equipment enclosed by a building structure to a remote point of egress comprising, hood means gathering the vaporized grease developed at said equipment, duct means extending through said structure and communicating said hood to said point of egress, said duct means comprising an inner channel and an outer channel in spaced relationship therewith, heat means for raising the temperature of the surfaces of said duct to a level precluding the depositing of condensed grease thereon as vaporized grease moves therethrough, said heat means being disposed in the space defined by said inner and outer channels of said duct means, and means insulating said structure From said heated duct.
Claim 3
Dependent Claim
32 words
The offtake system of claim 1 wherein said heating means are electrical resistance heating elements positioned closely adjacent said inner channel and in the space defined between said inner and outer channels.
Claim 4
Dependent Claim
53 words
The offtake system of claim 1 wherein said hood means comprises inner and outer walls in spaced relationship and heat means disposed between said walls wherein said heat means raises the temperature of the surfaces of said hood to a level precluding the depositing of condensed grease thereon as vaporized grease moves therethrough.
Claim 5
Dependent Claim
27 words
The system of claim 1 wherein said heating means are adjacent said inner channel and insulating material is disposed between said heating means and said outer channel.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |