US3802476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw anchor
Assignee: Illinois Tool Works Inc
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Filing: 1972-05-08
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Granted: 1974-04-09
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Expires: 1992-05-08
Abstract
Abstract A screw anchoring device for pre-assembled sealing attachment over an aperture in a wall surface panel, such as a plastic liner wall of a refrigerator, which, in turn, is to be attached to an outer cabinet wall with the space between the walls to be filled with an insulating material as, for example, a foamed in situ plastic material; the anchoring device including a plate portion with a helical screw impression and struck tabs piercing an attached double faced adhesive pad for mounting the device to the adjacent wall surface in position to seal the aperture therethrough with the screw impression in position to receive a screw passed through the adhesive pad for mounting various types of utility components to the accessible face of the liner wall, and the plate portion of the anchoring device having angled edge portion to facilitate initial handling and subsequent embedment in the foamed insulating material.
Inventors
- 👤 J Hoadley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:42
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/02; F25; F25D; F25D23/00; F25D23/06; F25D23/065; F25D25/00; F25D25/02; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
265 words
A screw anchoring device for pre-assembled aperture sealing attachment with an apertured panel to confine material, such as insulating material foamed in place between the panel and an attached spaced wall or other structure; and comprising a plate member having a central aperture forming a helical screw receiving impression and a generally flat portion, a pair of upstanding tabs projecting from one face of the generally flat portion of said plate member at opposite sides of and adjacent to said screw impression, said tabs being struck from within the margins of said plate member, and a continuous pad of a material capable of being penetrated by said screw and having an exposable adhesive surface substantially covering and carried by the plate member with the tabs projecting for entry into the panel aperture and through said pad to locate the anchoring device and with the adhesive surface of the pad extending across the panel aperture for mounting and sealing adherence to the adjacent panel surface whereby to prevent egress of trapped material through the panel aperture, and with the screw impression in position for threaded engagement with a screw passed through the panel aperture and the pad for attachment of a utility component to the opposite panel surface and one or more wing portions formed from said plate member at one or more edges of said flat portion of said plate member, said wing portions being angled away from the face thereof opposite to that of the tabs and adapted to be embedded in the foamed material for supplementing the other anti-rotative features of the anchor.
Claim 2
Dependent Claim
265 words
A screw anchoring device for pre-assembled aperture sealing attachment with an apertured panel to confine material, such as insulating material foamed in place between the panel and an attached spaced wall or other structure; and comprising a plate member having a central aperture forming a helical screw receiving impression and a generally flat portion, a pair of upstanding tabs projecting from one face of the generally flat portion of said plate member at opposite sides of and adjacent to said screw impression, said tabs being struck from within the margins of said plate member, and a continuous pad of a material capable of being penetrated by said screw and having an exposable adhesive surface substantially covering and carried by the plate member with the tabs projecting for entry into the panel aperture and through said pad to locate the anchoring device and with the adhesive surface of the pad extending across the panel aperture for mounting and sealing adherence to the adjacent panel surface whereby to prevent egress of trapped material through the panel aperture, and with the screw impression in position for threaded engagement with a screw passed through the panel aperture and the pad for attachment of a utility component to the opposite panel surface and one or more wing portions formed from said plate member at one or more edges of said flat portion of said plate member, said wing portions being angled away from the face thereof opposite to that of the tabs and adapted to be embedded in the foamed material for supplementing the other anti-rotative features of the anchor.
Claim 3
Dependent Claim
26 words
An anchoring device as claimed in claim 1, wherein the adhesive pad is double faced for attachment to the plate member and to the panel surface.
Claim 4
Dependent Claim
30 words
An anchoring device as claimed in claim 1, wherein the pad and the adhesive layers thereof will seal along the surface of a screw engaged with the helical screw impression.
Claim 5
Dependent Claim
51 words
An anchoring device as claimed in claim 1 wherein in said device said pair of tabs are of rectangular shape and said wings are two in number and have a rectangular shape with the long sides of said rectangular tabs and said rectangular wings are all aligned in substantially parallel relationship.
References Cited (Backward Citations)
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US3298271A
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US3392225A
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US3570361A
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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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |