US3924216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded indicating lamp fuseholder
Assignee: Boeing North American Inc
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Filing: 1975-01-24
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Granted: 1975-12-02
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Expires: 1995-01-24
Abstract
Abstract A fuseholder for housing a tubular fuse comprises a female member for receiving the fuse while mounted in a metal panel and a male member having a housing on one end for insertably engaging the female member and a blown fuse indicating lamp on the other end which is visible from the front of the panel when the fuseholder is completely assembled. A metal ring encircling the walls of the lamp, which is connected to a wire mesh jacket enshrouding the surfaces of the lamp above the ring, contacts an annular terminal at the front end of the female member which is in contact with the panel to provide a shielding effect once the fuseholder is assembled.
Inventors
- 👤 Burton L Martin
- 👤 Peter E Tilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:40
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/30; H01H85/32; H01H85/54; H01H85/542
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
179 words
A shielded indicating lamp fuseholder for housing a tubular fuse while mounted in a metal panel comprising: a female member for mounting in the panel having terminals for connection to the circuit to be protected by the fuse and an annular terminal at its front end in contact with the panel through which the fuse is received from the front of the panel; a male member having a housing at one end for receiving one end of the fuse and a lamp at the other end which illuminates when the fuse is blown, said housing being engageably insertable in said female member through said annular terminal to complete the assembly of the fuseholder, whereupon parallel electrical paths via the protected circuit are established through the fuse and said lamp; a metal ring encircling the outer wall of said lamp located so that when said male member engages said female member, said ring comes into contact with said annular terminal, and a wire mesh jacket which completely enshrouds the surfaces of said lamp above said ring and is connected thereto.
Claim 2
Dependent Claim
179 words
A shielded indicating lamp fuseholder for housing a tubular fuse while mounted in a metal panel comprising: a female member for mounting in the panel having terminals for connection to the circuit to be protected by the fuse and an annular terminal at its front end in contact with the panel through which the fuse is received from the front of the panel; a male member having a housing at one end for receiving one end of the fuse and a lamp at the other end which illuminates when the fuse is blown, said housing being engageably insertable in said female member through said annular terminal to complete the assembly of the fuseholder, whereupon parallel electrical paths via the protected circuit are established through the fuse and said lamp; a metal ring encircling the outer wall of said lamp located so that when said male member engages said female member, said ring comes into contact with said annular terminal, and a wire mesh jacket which completely enshrouds the surfaces of said lamp above said ring and is connected thereto.
Claim 3
Dependent Claim
55 words
The fuseholder of claim 1 wherein said annular terminal comprises a metallic cup which extends out from the panel and has an annular base in contact with the panel and resilient metallic contacts around the peripheral interior wall of said cup against which said ring is pressed when said male member engages said female member.
Claim 4
Dependent Claim
16 words
The fuseholder of claim 2 including a conductive gasket intermediate said annular base and the panel.
Claim 5
Dependent Claim
15 words
The fuseholder of claim 1 including a transparent protective cap enclosing said wire mesh jacket.
Claim 6
Dependent Claim
21 words
The fuseholder of claim 1 wherein said ring is located around the base of said lamp where it joins said housing.
Claim 7
Dependent Claim
178 words
In combination with an indicating lamp fuseholder for housing a tubular fuse having a female member for receiving the fuse via its front end while mounted in a metal panel and a male member having a housing at one end for receiving one end of the fuse and for insertably engaging the female member via its front end to complete the fuseholder assembly whereupon parallel electrical paths are established via the fuse and a blown fuse indicating lamp on the other end of the male member which is visible from the front of the panel during engagement, a shielding arrangement comprising; an annular terminal located at the front end of the female member through which the male member housing and fuse are received in contact with the panel; a metal ring encircling the outer wall of the lamp located so that when the male and female members are engaged, said ring comes into contact with said annular terminal, and a wire mesh jacket which completely enshrouds the surfaces of the lamp above said ring and is connected thereto.
Claim 8
Dependent Claim
178 words
In combination with an indicating lamp fuseholder for housing a tubular fuse having a female member for receiving the fuse via its front end while mounted in a metal panel and a male member having a housing at one end for receiving one end of the fuse and for insertably engaging the female member via its front end to complete the fuseholder assembly whereupon parallel electrical paths are established via the fuse and a blown fuse indicating lamp on the other end of the male member which is visible from the front of the panel during engagement, a shielding arrangement comprising; an annular terminal located at the front end of the female member through which the male member housing and fuse are received in contact with the panel; a metal ring encircling the outer wall of the lamp located so that when the male and female members are engaged, said ring comes into contact with said annular terminal, and a wire mesh jacket which completely enshrouds the surfaces of the lamp above said ring and is connected thereto.
Claim 9
Dependent Claim
56 words
The shielding arrangement of claim 6 wherein said annular terminal comprises a metallic cup which extends out from the panel and has an annular base in contact with the panel and resilient metallic contacts around the peripheral interior wall of said cup against which said ring is pressed when said male member engages said female member.
Claim 10
Dependent Claim
16 words
The shielding arrangement of claim 6 including a transparent protective cap enclosing said wire mesh jacket.
Claim 11
Dependent Claim
22 words
The shielding arrangement of claim 6 wherein said ring is located around the base of said lamp where it joins said housing.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |