Patent US3678980A successfully refreshed from Google Patents.
US3678980A
Expired / Lapsed
US
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Panel insert device
Assignee: Illinois Tool Works Inc
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Filing: 1970-03-26
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Granted: 1972-07-25
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Expires: 1990-03-26
Abstract
Abstract The present invention relates generally to insert devices for panels and more particularly to insert devices for installation in light weight panels such as panels composed of a honeycomb core bounded by skin sheets. The embodiments of the present invention disclosed in the drawings include a sheet metal fastener member having an annular body which is partially severed transversely. A portion of the body adjacent one side of the body severance is deflected axially to provide an entering helical lead and panel rupturing edge. The annular body has an internally threaded extrusion, and a thermoplastic adhesive is attached to the body which, when heated, will form a band between the fastener body and a complementary honeycomb core.
Inventors
- 👤 Charles E Gutshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:54
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/02; F16B11/00; F16B11/006; F16B37/04; F16B5/00; F16B5/01; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/968; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49838
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
140 words
An insert device for installation in light weight panels such as panels composed of a honeycomb core bounded by skin sheets, including a sheet metal fastener member having an annular body which is partially severed transversely, the portion of the body adjacent one side of said body severance being deflected axially and providing an entering helical lead and panel rupturing edge, a centrally disposed internally threaded extrusion extending from said body in the axial direction of the body deflection, and thermoplastic adhesive material carried in imperforate pocket means provided by deformations in the annular body and extending out of the plane thereof and disposed therearound outwardly from the threaded extrusion and which adhesive, when heated, will rebond severed core material while forming a bond between the fastener body and the honeycomb type of panel with which it may be associated.
Claim 2
Dependent Claim
140 words
An insert device for installation in light weight panels such as panels composed of a honeycomb core bounded by skin sheets, including a sheet metal fastener member having an annular body which is partially severed transversely, the portion of the body adjacent one side of said body severance being deflected axially and providing an entering helical lead and panel rupturing edge, a centrally disposed internally threaded extrusion extending from said body in the axial direction of the body deflection, and thermoplastic adhesive material carried in imperforate pocket means provided by deformations in the annular body and extending out of the plane thereof and disposed therearound outwardly from the threaded extrusion and which adhesive, when heated, will rebond severed core material while forming a bond between the fastener body and the honeycomb type of panel with which it may be associated.
Claim 3
Dependent Claim
29 words
An insert device for installation in light weight panels as set forth in claim 1, wherein the thermoplastic adhesive material is carried on both sides of the annular body.
Claim 4
Dependent Claim
25 words
An insert device for installation in light weight panels as set forth in claim 1, wherein the internally threaded extrusion is of restricted axial extent.
Claim 5
Dependent Claim
31 words
An insert device for installation in light weight panels as set forth in claim 1, wherein the pocket means in the body are annularly disposed depressions for accommodating the thermoplastic adhesive.
Claim 6
Dependent Claim
31 words
An insert device for installation in light weight panels as set forth in claim 4, wherein the annularly disposed depressions are in the form of concentric rings formed in the body.
Claim 7
Dependent Claim
29 words
An insert device for installation in light weight panels as set forth in claim 1, wherein the shape of the outer periphery of the annular insert body is non-circular.
Claim 8
Dependent Claim
24 words
An insert device for installation in light weight panels as set forth in claim 1, wherein the annular body has a multi-sided outer periphery.
Claim 9
Dependent Claim
28 words
An insert device for installation in light weight panels as set forth in claim 1, wherein the annular body of the insert is substantially conical in axial section.
Claim 10
Dependent Claim
38 words
An insert device for installation in light weight panels as set forth in claim 1, wherein the internally threaded extrusion is provided with a peripheral deformation for exerting a prevailing torque when a screw member is applied thereto.
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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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |