US3813626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuse retainer and extractor
Assignee: Robertshaw Controls Co
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Filing: 1972-12-15
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Granted: 1974-05-28
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Expires: 1992-12-15
Abstract
Abstract A fuse holder constructed from a dielectric material which is also elastic or partly elastic, such as plastic, formed to provide a cylinder split longitudinally and chamfered at either end to receive a cartridge fuse, such cylinder having attached thereto a handle to facilitate grasping of the fuse holder. At the distal ends, the handle extends to form insulating chambers partly surrounding the respective connector end caps of the fuse and opening along one lateral surface thereof to receive the corresponding spring clips of a fuse clip. The distally opposite surfaces of the respective housings are pierced to form openings concentric with the axis of the cylinder, said openings being sized to pass the fuse into the interior cavity of the cylinder. In another embodiment, the handle is formed to provide a second fuse holder substantially shaped in a similar manner as the first fuse holder, for holding a spare fuse for replacement.
Inventors
- 👤 H Cetola
- 👤 T Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:02
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/54; H01H85/547; H01H85/02; H01H85/26
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
123 words
A fuse holder for receiving cartridge fuses disposed for insertion in fuse clips, comprising in combination: a first resilient cylinder incuding a first central cavity conformed to longitudinally receive the insulative cylinder of a first cartridge fuse; handle means attached to said cylinder and disposed longitudinal therewith in radial projection for providing insulative manual grasping and pressing surfaces; and first end insulator means attached to said handle means at both ends thereof formed to partly surround the exposed ends of the first fuse receivable in said cylinder and adapted to receive corresponding terminals of a fuse clip disposed for attachment with said first fuse for providing insulative walls thereabout, said walls including openings for passing said first fuse into said first central cavity.
Claim 2
Dependent Claim
123 words
A fuse holder for receiving cartridge fuses disposed for insertion in fuse clips, comprising in combination: a first resilient cylinder incuding a first central cavity conformed to longitudinally receive the insulative cylinder of a first cartridge fuse; handle means attached to said cylinder and disposed longitudinal therewith in radial projection for providing insulative manual grasping and pressing surfaces; and first end insulator means attached to said handle means at both ends thereof formed to partly surround the exposed ends of the first fuse receivable in said cylinder and adapted to receive corresponding terminals of a fuse clip disposed for attachment with said first fuse for providing insulative walls thereabout, said walls including openings for passing said first fuse into said first central cavity.
Claim 3
Dependent Claim
35 words
A fuse holder according to claim 1, wherein: said first end insulator means is formed with an opening disposed in substantially opposing relationship with said handle means for receiving the terminals of said fuse clip.
Claim 4
Dependent Claim
60 words
A fuse holder according to claim 2, wherein: said first resilient cylinder further includes annular chamfers formed in the distal ends of said first central cavity and diverging to a diameter greater than the end diameter of the receivable fuse at the end surfaces of said first cylinder, and a separation formed longitudinally in the wall of said first cylinder.
Claim 5
Dependent Claim
45 words
A fuse holder according to claim 3 wherein: said openings further include circular apertures formed in the distally opposed walls of said first end insulator means in concentric alignment with said first cylinder and of a diameter greater than the exterior diameter of said fuse.
Claim 6
Dependent Claim
54 words
A fuse holder according to claim 4, wherein: said handle means further includes a first insulative planar member attached at one edge thereof to said cylinder and projecting readially therefrom and a second planar member attached in substantially normal alignment with said first planar member proximate the distal ends of the other edge thereof.
Claim 7
Dependent Claim
115 words
A fuse holder according to claim 2, wherein: said handle means further includes a second resilient cylinder formed in parallel alignment with said first resilient cylinder and including a second central cavity conformed to longitudinally receive the insulative cylinder of a second cartridge fuse and second insulator means attached to said handle means at both ends thereof formed to surround the exposed ends of the second fuse receivable in said second cylinder including openings on the distally opposed surfaces thereof for passing said fuse into said first and second cavity and adapted to receive corresponding terminals of a fuse clip in substantially opposing relationship with said first end insulator means for providing insulative walls thereabout.
Claim 8
Dependent Claim
33 words
A fuse holder according to claim 6, wherein: said first and second end insulator means is formed with an opening disposed in substantially opposing relationship for receiving the terminals of said fuse clip.
Claim 9
Dependent Claim
67 words
A fuse holder according to claim 7, wherein: said first and second resilient cylinders further include annular chamfers formed in the distal ends of said first and second central cavities diverging to a diameter greater than the end diameter of the receivable fuse at the end surfaces of said first and second cylinders and a separation formed longitudinally in the wall of said first and second cylinders.
Claim 10
Dependent Claim
50 words
A fuse holder according to claim 8, wherein: said openings in said first and second end insulator means further include circular apertures formed in the distally opposed walls thereof in concentric alignment with said first and second cylinders and of a diameter greater than the exterior diameter of said 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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |