US3699490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuse holder
Assignee: KUHIMAN CORP
•
Filing: 1970-03-06
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Granted: 1972-10-17
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Expires: 1990-03-06
Abstract
Abstract A fuse holder has a fluid-tight housing with external terminals that are internally connected to the fuse by annular coil springs. A fuse handling rod carries an expansible sleeve device at one end for connecting it to the fuse and a second expansible sleeve device at the other end for sealing the end of the housing.
Inventors
- 👤 Herbert J Macemon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:01
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/10; H01H9/102
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
245 words
A fuse holder for a fuse of the type having an elongated body with electrical terminals at opposite ends in the form of longitudinally extending conductive sleeves, said fuse holder comprising a tubular housing closed at one end and open at the other end, closure means for the open end of the housing, said housing having a first electrical terminal means adjacent the closed end and a second electrical terminal means at a central location between said ends, said terminal means each including a contact surface on the inside of the housing, the space inside said housing between said first and second terminal means comprising a chamber for said fuse, first and second electrical connectors in said chamber engageable with the conductive sleeves for electrically connecting the conductive sleeves of the fuse to said contact surfaces, an elongated fuse holding rod inside said housing having a first end adjacent said closure means, said rod having a second end adjacent the fuse chamber, and releasable attachment means including threaded means carried entirely by the second end of the rod for removably securing said second end to an interior portion of one of the conductive sleeves of said fuse so that the fuse forms a longitudinal extension of the rod and the two are movable together as a unit through the open end of the housing, said rod and said fuse being rotatable, one relative to the other, to effect release of said rod from said fuse.
Claim 2
Dependent Claim
245 words
A fuse holder for a fuse of the type having an elongated body with electrical terminals at opposite ends in the form of longitudinally extending conductive sleeves, said fuse holder comprising a tubular housing closed at one end and open at the other end, closure means for the open end of the housing, said housing having a first electrical terminal means adjacent the closed end and a second electrical terminal means at a central location between said ends, said terminal means each including a contact surface on the inside of the housing, the space inside said housing between said first and second terminal means comprising a chamber for said fuse, first and second electrical connectors in said chamber engageable with the conductive sleeves for electrically connecting the conductive sleeves of the fuse to said contact surfaces, an elongated fuse holding rod inside said housing having a first end adjacent said closure means, said rod having a second end adjacent the fuse chamber, and releasable attachment means including threaded means carried entirely by the second end of the rod for removably securing said second end to an interior portion of one of the conductive sleeves of said fuse so that the fuse forms a longitudinal extension of the rod and the two are movable together as a unit through the open end of the housing, said rod and said fuse being rotatable, one relative to the other, to effect release of said rod from said fuse.
Claim 3
Dependent Claim
37 words
A fuse holder as set forth in claim 1 wherein said releasable attachment means also includes an attachment member fitting into said interior portion and expandable against a surface of said interior portion for connection to it.
Claim 4
Dependent Claim
37 words
A fuse holder as set forth in claim 2 wherein said attachment member comprises a rubber-like body, and said rotation causing said threaded means to compress said body to cause it to radially expand against said surface.
Claim 5
Dependent Claim
72 words
A fuse holder as set forth in claim 3 wherein said threaded means extends through said body and is threaded into the second end of the rod, said threaded means including a pressure shoulder operatively connected to a face of the body remote from said second end, relative rotation of the rod and threaded means serving to control the position of said shoulder and the degree of radial expansion of said body.
Claim 6
Dependent Claim
61 words
A fuse holder as set forth in claim 1 wherein said closure means includes a rubber-like sealing member inside the housing pressing against the first end of said rod and a compression member outside the housing for applying longitudinal compression to the sealing member to press it against the first end of the rod and radially expand it against the housing.
Claim 7
Dependent Claim
36 words
A fuse holder as set forth in claim 5 wherein said compression member is attached to the first end of the rod and includes a longitudinally movable pressure plate for appLying pressure to the sealing member.
Claim 8
Dependent Claim
55 words
A fuse holder as set forth in claim 6 including a support rod at the first end of the rod and extending through the sealing member and pressure plate, said compression member being movably secured to said support rod and including cam means operative upon movement of the compression member for moving the pressure plate.
Claim 9
Dependent Claim
68 words
A fuse holder as set forth in claim 7 wherein said compression member is pivoted to said rod and said cam means is shaped to yieldably hold the compression member in respectively the compressed and released position, said compression member including handle means whereby the fuse holding rod and attached fuse and closure means may be handled as a unit for insertion into and removal from the housing.
Claim 10
Dependent Claim
54 words
A fuse holder as set forth in claim 1 wherein said housing comprises a non-conductive tubular member and three longitudinally spaced metallic sleeves integrated with said member, one of said metallic sleeves being located at said open end and the other two of said metallic sleeves forming said first and second electrical terminal means.
Claim 11
Dependent Claim
24 words
A fuse holder as set forth in claim 9 wherein said one sleeve has a mounting flange for the fuse holder secured to it.
Claim 12
Dependent Claim
81 words
A fuse holder as set forth in claim 1 wherein at least one of said electrical connectors comprises an annular coil spring having a relaxed state outer diameter less than that of the inner diameter of a said contact surface and a relaxed state inner diameter less than the outer diameter of a conductive fuse terminal sleeve, said spring being expandable into peripheral contact with the contact surface upon insertion of said terminal sleeve into the inner diameter of the spring.
Claim 13
Dependent Claim
36 words
A fuse holder as set forth in claim 1 wherein said electrical connectors comprise annular coil springs fitting on the outside of said conductive sleeves and expandable by said sleeves into contact with said contact surfaces.
Claim 14
Dependent Claim
42 words
A fuse holder as set forth in claim 12 wherein one of said springs is carried by said rod in contact with the second electrical terminal means and the other of said springs is in contact in the first electrical terminal means.
Claim 15
Dependent Claim
37 words
A fuse holder as set forth in claim 13 including means connected to the housing for holding the other coil spring at the closed end of the housing during movement of the rod to remove a fuse.
Claim 16
Dependent Claim
24 words
A fuse holder as set forth in claim 1 including guide washers connected to said conductive sleeves for centering said fuse in said housing.
Claim 17
Dependent Claim
33 words
A fuse holder as set forth in claim 15 including a tapered centering surface formed on said rod adjacent its first end and serving to guide and center said rod in said housing.
Claim 18
Dependent Claim
245 words
A fuse holder for holding a fuse of the type having an elongated body with electrical terminals at opposite ends in the form of longitudinally extending conductive sleeves, the holder comprising a tubular housing closed at one end and open at the other end, a movable closure for sealing the open end of the housing to make the housing fluid tight, said housing having a first electrical terminal means adjacent the closed end and a second electrical terminal means at a location intermediate said ends, said terminal means each having a contact surface on the inside of the housing, the space inside said housing between said first and second terminal means comprising a fuse chamber, first and second electrical connectors in said fuse chamber engageable with the conductive sleeves for electrically connecting a fuse in said chamber to said first and second terminal means, a fuse holding rod in said housing having first and second ends, said closure being connected to said first end of the rod, and selectively releasable connection means including threaded means mounted entirely on the second end of the rod for removably connecting it to an interior portion of one of the conductive sleeves of the fuse so that when connected together said fuse forms a longitudinal extension of the rod and the two are Movable together as a unit, said rod and said fuse being rotatable, one relative to the other, to effect release of said rod from said fuse.
Claim 19
Dependent Claim
245 words
A fuse holder for holding a fuse of the type having an elongated body with electrical terminals at opposite ends in the form of longitudinally extending conductive sleeves, the holder comprising a tubular housing closed at one end and open at the other end, a movable closure for sealing the open end of the housing to make the housing fluid tight, said housing having a first electrical terminal means adjacent the closed end and a second electrical terminal means at a location intermediate said ends, said terminal means each having a contact surface on the inside of the housing, the space inside said housing between said first and second terminal means comprising a fuse chamber, first and second electrical connectors in said fuse chamber engageable with the conductive sleeves for electrically connecting a fuse in said chamber to said first and second terminal means, a fuse holding rod in said housing having first and second ends, said closure being connected to said first end of the rod, and selectively releasable connection means including threaded means mounted entirely on the second end of the rod for removably connecting it to an interior portion of one of the conductive sleeves of the fuse so that when connected together said fuse forms a longitudinal extension of the rod and the two are Movable together as a unit, said rod and said fuse being rotatable, one relative to the other, to effect release of said rod from said fuse.
Claim 20
Dependent Claim
37 words
A fuse holder as set forth in claim 1 wherein said interior portion has a smooth surface for receiving said attachment means, said releasable attachment means being adapted to effect a retaining engagement with said interior portion.
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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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |