US4448476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuse holder
Assignee: PERMONITE Mfg Co
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Filing: 1982-05-11
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Granted: 1984-05-15
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Expires: 2002-05-11
Abstract
Abstract A fuseholder and method for manufacturing thereof, the fuse holder having a cap and a molded body to receive a fuse. The fuse holder has a first contact located at one end of the body to engage one end of the fuse. A cylindrical second contact having opposed J-shaped slots is disposed near the other end of the body. Engaging the other end of the fuse is a connector having a pair of tabs receivable by the J-shaped slots to form a conductive bayonet connection between the connector and the second contact. Protrusions on the connector slidably engage the second contact to maintain conductive contact therebetween if the bayonet connection is broken. The fuse holder can be adapted by modifying the connector or by using an adaptor to accommodate shorter fuses. To manufacture the fuse holder, the first and second contacts are insert-molded into the body.
Inventors
- 👤 Stanley Perlman
- 👤 William G. Herbert
- 👤 Donald Layton
- 👤 James S. Hanafee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:02
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/54; H01H85/542; H01H85/20; H01H2085/2065
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
178 words
A fuse holder for receiving cylindrical fuses of the type having conductive ends, said fuse holder comprising: a body to receive the fuse; a first contact disposed in said body to conductively engage one end of said fuse; a second contact disposed in said body, said second contact having at least one J-shaped slot; a cap having a connector to conductively engage the other end of said fuse, said connector having a tab received in each slot and conductively engaged between the fuse and the second contact with the connector and second contact in a first position; a conductive protrusion interposed between said connector and said second contact to maintain sliding contact between the connector and the second contact in the event said connector and second contact are moved relative to each other and away from said first position without relative rotation so that the tab disengages said second contact; and a biasing means between said connector and said second contact to maintain the tabs in said slots and against said second contact, forming a bayonet connection therebetween.
Claim 2
Dependent Claim
178 words
A fuse holder for receiving cylindrical fuses of the type having conductive ends, said fuse holder comprising: a body to receive the fuse; a first contact disposed in said body to conductively engage one end of said fuse; a second contact disposed in said body, said second contact having at least one J-shaped slot; a cap having a connector to conductively engage the other end of said fuse, said connector having a tab received in each slot and conductively engaged between the fuse and the second contact with the connector and second contact in a first position; a conductive protrusion interposed between said connector and said second contact to maintain sliding contact between the connector and the second contact in the event said connector and second contact are moved relative to each other and away from said first position without relative rotation so that the tab disengages said second contact; and a biasing means between said connector and said second contact to maintain the tabs in said slots and against said second contact, forming a bayonet connection therebetween.
Claim 3
Dependent Claim
30 words
The fuse holder described in claim 1 wherein said protrusion is located on and extends inwardly from said second contact to abut said connector and maintain sliding conductive contact therewith.
Claim 4
Dependent Claim
30 words
The fuse holder described in claim 1 wherein said protrusion is located on and extends outwardly from said connector to slidingly abut said second contact and maintain conductive contact therewith.
Claim 5
Dependent Claim
15 words
The fuse holder described in claim 3 wherein said protrusion is disposed above each tab.
Claim 6
Dependent Claim
12 words
the fuse holder described in claim 4 wherein said protrusion is nipple-shaped.
Claim 7
Dependent Claim
202 words
A fuse holder for receiving cylindrical fuses of the type having conductive ends, said fuse holder comprising: a body to receive the fuse; a first contact disposed in said body to conductively engage one end of said fuse; a second contact disposed in said body, said second contact having at least one J-shaped slot; a cap having a connector to conductively engage the other end of said fuse, said connector having a tab to engage and be retained by each slot for conductive engagement between said fuse and said second contact through the connector tab and slot; a conductive protrusion interposed between said connector and said second contact to maintain sliding contact between the connector and the second contact in the event said tab is depressed within said slot; a biasing means between said connector and said second contact to maintain the tabs in said slots forming a bayonet connection therebetween; and an elongate, cylindrical, conductive adapter having one end adapted to receive the other end of a short fuse and having at least one outwardly directed protuberance to conductively engage and slide along said connector thereby maintaining electrical connection between said second contact and the other end of said short fuse.
Claim 8
Dependent Claim
202 words
A fuse holder for receiving cylindrical fuses of the type having conductive ends, said fuse holder comprising: a body to receive the fuse; a first contact disposed in said body to conductively engage one end of said fuse; a second contact disposed in said body, said second contact having at least one J-shaped slot; a cap having a connector to conductively engage the other end of said fuse, said connector having a tab to engage and be retained by each slot for conductive engagement between said fuse and said second contact through the connector tab and slot; a conductive protrusion interposed between said connector and said second contact to maintain sliding contact between the connector and the second contact in the event said tab is depressed within said slot; a biasing means between said connector and said second contact to maintain the tabs in said slots forming a bayonet connection therebetween; and an elongate, cylindrical, conductive adapter having one end adapted to receive the other end of a short fuse and having at least one outwardly directed protuberance to conductively engage and slide along said connector thereby maintaining electrical connection between said second contact and the other end of said short fuse.
Claim 9
Dependent Claim
20 words
The fuse holder described in claim 6 wherein said connector is cylindrical and the adapter is received within said connector.
Claim 10
Dependent Claim
32 words
The fuse holder described in claim 7 wherein said biasing means is a spring housed within the connector to engage the said other end of said fuse to maintain said bayonet connection.
Claim 11
Dependent Claim
140 words
A fuse holder for a short, European-type cylindrical fuse having conductive ends, said fuse holder comprising: a body to receive the fuse; a first contact disposed at one end of said body to conductively contact one end of said fuse; a second contact disposed near the other end of said body, said second contact having at least one J-shaped slot; a conductive connector insertable into said body and having at one end a cap, the other end adapted to receive the other end of said fuse, said connector having an intermediate outwardly directed L-shaped tab for reception by each slot to form a conductive bayonet connection therebetween, and said tab having an outwardly protruding projection to slidingly abut said second contact maintaining conductive contact therebetween; and biasing means between said connector and said second contact to maintain said bayonet connection.
Claim 12
Dependent Claim
140 words
A fuse holder for a short, European-type cylindrical fuse having conductive ends, said fuse holder comprising: a body to receive the fuse; a first contact disposed at one end of said body to conductively contact one end of said fuse; a second contact disposed near the other end of said body, said second contact having at least one J-shaped slot; a conductive connector insertable into said body and having at one end a cap, the other end adapted to receive the other end of said fuse, said connector having an intermediate outwardly directed L-shaped tab for reception by each slot to form a conductive bayonet connection therebetween, and said tab having an outwardly protruding projection to slidingly abut said second contact maintaining conductive contact therebetween; and biasing means between said connector and said second contact to maintain said bayonet connection.
Claim 13
Dependent Claim
39 words
The fuse holder described in claim 9 wherein said second contact is ferrule-like having a pair of diametrically opposed J-shaped slots and said connector has a pair of L-shaped tabs received by said slots forming the bayonet connection therebetween.
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) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |