US3634812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuse clamp
Assignee: Arrow Hart Inc
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Filing: 1969-12-05
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Granted: 1972-01-11
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Expires: 1989-12-05
Abstract
Abstract A fuse holder for cylindrical cartridge fuses having axially protruding terminal blades is provided with floating clamp members to grip and electrically connect with the fuse which allow for dimensional and alignment errors of the fuse or the holder.
Inventors
- 👤 Joseph A Genova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:15
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/20; H01H85/203; H01H85/204
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
In a fuse holder for cylindrical cartridge fuses, said fuse holder comprising a fuse-retaining member and a base member adapted to receive the fuse-retaining member, the fuse-retaining member having a pair of fuse clamp members adapted to spring engage the terminal ends of the fuse, the improvement which comprises associating the fuse clamp members with the fuseretaining member by capture within reentrant cavities in the fuse-retaining member with clearance such that the fuse clamp members are permitted limited freedom of movement with respect to the fuse-retaining member, the fuse clamp members each comprising a rigid assembly of a fuse-engaging spring member and a further member, the assemblies being larger than the entrance of the reentrant cavities.
Claim 2
Dependent Claim
116 words
In a fuse holder for cylindrical cartridge fuses, said fuse holder comprising a fuse-retaining member and a base member adapted to receive the fuse-retaining member, the fuse-retaining member having a pair of fuse clamp members adapted to spring engage the terminal ends of the fuse, the improvement which comprises associating the fuse clamp members with the fuseretaining member by capture within reentrant cavities in the fuse-retaining member with clearance such that the fuse clamp members are permitted limited freedom of movement with respect to the fuse-retaining member, the fuse clamp members each comprising a rigid assembly of a fuse-engaging spring member and a further member, the assemblies being larger than the entrance of the reentrant cavities.
Claim 3
Dependent Claim
37 words
The fuse holder of claim 1 wherein the reentrant cavities of the fuse-retaining member each include a plurality of projecting lugs which overlie portions of each of the fuse clamp members to capture them within their cavities.
Claim 4
Dependent Claim
63 words
The fuse holder of claim 1 wherein the fuse-retaining member is provided with blade contacts electrically connected to said fuse clamp members and the base member is provided with spring acting clamp members adapted to engage said blade contacts to thereby retain said fuse-retaining member within said base member, said base clamp members being electrically connected to wiring terminals on said base members.
Claim 5
Dependent Claim
28 words
The fuse holder of claim 3 wherein the blade contacts and the fuse clamp members are rigidly assembled together and that assembly is captured within the reentrant cavity.
Claim 6
Dependent Claim
43 words
The fuse holder of claim 4 wherein the reentrant cavities of the fuse-retaining member each include a plurality of projecting lugs which overlie portions of the rigid assemblies of blade contacts and fuse clamp members to capture the rigid assemblies within the cavities.
Claim 7
Dependent Claim
40 words
The fuse holder of claim 5 wherein the fuse to be held is a cylindrical cartridge fuse having axially extending terminal blades and the fuse clamp members are shaped so as to spring engage the terminal blades of the fuse.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |