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US3815072A Expired / Lapsed US ⏱️ 0.0 years remaining

Fuse and holder with rejection feature

Assignee: GOLUD INC A DE CORP
•
Filing: 1973-01-16
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Granted: 1974-06-04
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Expires: 1993-01-16
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Abstract

Abstract A fuse holder substantially in the shape of a tubular receptacle intended for insertion into it of a cartridge fuse having plug terminals, and the fuse itself inserted into it, are provided with cooperating rejection means for precluding insertion of an improper fuse into the receptacle. To this end the receptacle is provided with at least one internal groove extending in a direction longitudinally thereof and the fuse is provided with at least one radial pin the outer end of which projects beyond the casing of the fuse and into the aforementioned internal groove in said receptacle.

Inventors

  • 👤 Marco B Di
  • 👤 K Swain
  • 👤 A Kralik

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 08:29
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/24; H01H85/20

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 103 words
A combination of a fuse holder and of an electric fuse including a a substantially tubular receptacle for the casing of said fuse, said receptacle being provided with internal groove means extending in a direction longitudinally thereof, and b an electric fuse having a substantially tubular insulating casing inserted into said receptacle, said casing of said fuse being closed at the ends thereof by a pair of plug terminals being pinned by pin means to said casing, and said fuse including at least one said pin means having a radially outer end projecting into and engaging said internal groove means in said receptacle.
Claim 2
Dependent Claim 103 words
A combination of a fuse holder and of an electric fuse including a a substantially tubular receptacle for the casing of said fuse, said receptacle being provided with internal groove means extending in a direction longitudinally thereof, and b an electric fuse having a substantially tubular insulating casing inserted into said receptacle, said casing of said fuse being closed at the ends thereof by a pair of plug terminals being pinned by pin means to said casing, and said fuse including at least one said pin means having a radially outer end projecting into and engaging said internal groove means in said receptacle.
Claim 3
Dependent Claim 39 words
A combination as specified in claim 1 wherein said receptacle and said fuse include abutment means additional to said groove means and pin means precluding insertion of said casing into said receptacle in any relative angular position but one.
Claim 4
Dependent Claim 39 words
A combination as specified in claim 2 wherein said receptacle is provided with a lateral slot and said fuse with a connector strap projecting through said slot and determining the angular position of said fuse relative to said receptacle.
Claim 5
Dependent Claim 47 words
A combination as specified in claim 1 wherein said receptacle has a plurality of angularly displaced internal groove means, and wherein said fuse includes a plurality of angularly displaced pin means having radially outer ends each projecting into and engaging one of said plurality of groove means.
Claim 6
Dependent Claim 264 words
A combination as specified in claim 1 including a a molding of a synthetic resin defining a plurality of substantially tubular receptacles closed at the bottom and open at the top thereof, each of said plurality of receptacles being closed at the front and provided with a slot at the rear thereof, and each of said plurality of receptacles having at least one internal groove means extending in a direction longitudinally thereof; and b a plurality of electric fuses each having a tubular casing inserted into one of said plurality of receptacles, said casing of each of said plurality of fuses being closed at the ends thereof by a pair of plug terminals pinned to said casing, each of said pair of plug terminals of said plurality of fuses including an upper plug terminal and a lower plug terminal, each of said plurality of fuses being provided with a connector strap having a web portion and a pair of flange portions extending in opposite directions away from said web portion, one of said pair of flange portions of said connector strap of each of said plurality of fuses engaging said lower plug terminal thereof and the other of said pair of flange portions of said connector strap of each of said plurality of fuses extending through said slot in one of said plurality of receptacles, and said lower plug terminal of each of said plurality of fuses being provided with at least one pin means having a radially outer end projecting into and engaging said groove means in one of said plurality of receptacles.
Claim 7
Dependent Claim 79 words
An electric fuse including a tubular casing of insulating material, a pulverulent arc-quenching filler inside said casing, fusible element means inside said casing embedded in said filler, a pair of plug terminals conductively interconnected by said fusible element means plugging the ends of said casing, pin means projecting through said casing into said pair of plug terminals, and said pin means including at least one pin having a radially outer end projecting beyond the outer surface of said casing.
Claim 8
Dependent Claim 79 words
An electric fuse including a tubular casing of insulating material, a pulverulent arc-quenching filler inside said casing, fusible element means inside said casing embedded in said filler, a pair of plug terminals conductively interconnected by said fusible element means plugging the ends of said casing, pin means projecting through said casing into said pair of plug terminals, and said pin means including at least one pin having a radially outer end projecting beyond the outer surface of said casing.

References Cited (Backward Citations)

CH161677A Cited
US1982032A Cited
US3533038A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-03 1977-12-03 1978-06-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-03 1981-12-03 1982-06-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-03 1985-12-03 1986-06-04 $7700.00 Window Closed / Lapsed

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