US4177352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shear bolt assembly for a load limiting line support for a post insulator
Assignee: Lapp Insulator Co LLC
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Filing: 1978-05-25
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Granted: 1979-12-04
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Expires: 1998-05-25
Abstract
Abstract A shear bolt assembly for a load limiting line support for a post insulator comprising a bolt having a first portion engaged with a saddle of the line support and a collar engaged by a line clamp. The collar is in abutting relation with the bolt and the collar and bolt have aligned axial bores in which a shear pin is secured. The shear pin can be secured in the collar and bolt by an adhesive layer and the shear pin can be brought into electrical contact with the bolt by providing a knurled section at one end which establishes interference fit and mechanical contact between the shear pin and the bolt.
Inventors
- 👤 David R. Dunbar
- 👤 Edward J. Balog, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:00
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/20; H01B17/22; F; F16; F16B; F16B2200/00; F16B2200/63; Y; Y10; Y10S; Y10S411/00; Y10S411/916
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
A shear bolt assembly for joining two members with a given shear strength capability, said assembly comprising a bolt including a first portion adapted for being engaged by one of the members being joined with given shear capability, said bolt having an axial bore therein extending partially along the length of the bolt, a collar disposed adjacent said bolt and adapted for being engaged by the other of the members to be joined with given shear capability, said collar having an axial bore therein which is aligned with the bore in the bolt with said collar in abutting relation with said bolt along a plane constituting the shear plane of the bolt assembly, a shear pin extending in the axially aligned bores of the bolt and the collar, and adhesive means securing said shear pin in said collar and bolt.
Claim 2
Dependent Claim
140 words
A shear bolt assembly for joining two members with a given shear strength capability, said assembly comprising a bolt including a first portion adapted for being engaged by one of the members being joined with given shear capability, said bolt having an axial bore therein extending partially along the length of the bolt, a collar disposed adjacent said bolt and adapted for being engaged by the other of the members to be joined with given shear capability, said collar having an axial bore therein which is aligned with the bore in the bolt with said collar in abutting relation with said bolt along a plane constituting the shear plane of the bolt assembly, a shear pin extending in the axially aligned bores of the bolt and the collar, and adhesive means securing said shear pin in said collar and bolt.
Claim 3
Dependent Claim
16 words
A shear bolt assembly as claimed in claim 1 with the adhesive means being electrically conductive.
Claim 4
Dependent Claim
32 words
A shear bolt assembly as claimed in claim 1 wherein said adhesive means is electrically insulative, said shear pin comprising means for providing electrical contact between the shear pin and the bolt.
Claim 5
Dependent Claim
43 words
A shear bolt assembly as claimed in claim 3 wherein said means for providing electrical contact between the shear pin and the bolt comprises a section on said shear pin providing interference fit and mechanical contact between said shear pin and the bolt.
Claim 6
Dependent Claim
20 words
A shear bolt assembly as claimed in claim 4 wherein said section on said shear pin is a knurled section.
References Cited (Backward Citations)
US2838920A
Cited
US3566011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-03 | 1983-06-04 | 1983-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-03 | 1987-06-04 | 1987-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-03 | 1991-06-04 | 1991-12-04 | $7700.00 | Window Closed / Lapsed |