Patent US4646570A successfully refreshed from Google Patents.
Patent US3619482A successfully refreshed from Google Patents.
US3619482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination structural support and electrical duct
Assignee: Motors Liquidation Co
•
Filing: 1970-03-09
•
Granted: 1971-11-09
•
Expires: 1990-03-09
Abstract
Abstract In the preferred form, a support formed of polyester resin containing glass fibers has fastened to opposite ends thereof an outer sheet metal wall and an inner plastic liner of a refrigerator. The support has a protrusion extending through an opening in the liner containing a wide flat passage therein and an external flat surface to which is fastened another sheet metal wall spaced from the liner. The wide flat passage broadens as it extends from the liner to an outer wall which has an opening of similar size. Electrical conductors extend through the passage to the interior of the refrigerator.
Inventors
- 👤 Roger M Boor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:09
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; Y; Y10; Y10S; Y10S220/00; Y10S220/23
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
A combined insulating support and duct including a member of a structurally strong heat and electrical insulating material having two spaced substantially parallel surfaces, a protrusion extending from one of said surfaces, a passage extending through the protrusion and having an enlarged portion extending through the remainder of said member to the other surface, said surfaces having means for receiving fastening devices, said protrusion including a flat surface spaced from the other surfaces provided with means for receiving a fastening device.
Claim 2
Dependent Claim
81 words
A combined insulating support and duct including a member of a structurally strong heat and electrical insulating material having two spaced substantially parallel surfaces, a protrusion extending from one of said surfaces, a passage extending through the protrusion and having an enlarged portion extending through the remainder of said member to the other surface, said surfaces having means for receiving fastening devices, said protrusion including a flat surface spaced from the other surfaces provided with means for receiving a fastening device.
Claim 3
Dependent Claim
156 words
In combination, a first wall having a first opening therein, a second wall spaced from said first wall having a second opening therein, a combined structural support and duct member of strong heat and electrical insulating material extending between said first and second walls aligned with said openings, said member having two spaced substantially parallel surfaces, a protrusion extending from one of said surfaces, a passage extending through the protrusion and having an enlarged portion extending through the remainder of said member to the other surface, said protrusion including a flat surface spaced from the other surfaces provided with means for receiving a fastening device fastening a third wall to said protrusion surface, first fastening means adjacent said first opening fastening said first wall to said support, second fastening means adjacent said second opening fastening said second wall to said member whereby said member provides a combined structural connection and insulated electrical duct between said walls.
Claim 4
Dependent Claim
156 words
In combination, a first wall having a first opening therein, a second wall spaced from said first wall having a second opening therein, a combined structural support and duct member of strong heat and electrical insulating material extending between said first and second walls aligned with said openings, said member having two spaced substantially parallel surfaces, a protrusion extending from one of said surfaces, a passage extending through the protrusion and having an enlarged portion extending through the remainder of said member to the other surface, said protrusion including a flat surface spaced from the other surfaces provided with means for receiving a fastening device fastening a third wall to said protrusion surface, first fastening means adjacent said first opening fastening said first wall to said support, second fastening means adjacent said second opening fastening said second wall to said member whereby said member provides a combined structural connection and insulated electrical duct between said walls.
References Cited (Backward Citations)
DE1074697B
Cited
US1189960A
Cited
US1906669A
Cited
US2795639A
Cited
US2799528A
Cited
US3151905A
Cited
FR1538622A
Cited
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 |