US3898602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosed, non-vented expulsion fuse
Assignee: TDK Micronas GmbH
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Filing: 1974-01-25
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Granted: 1975-08-05
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Expires: 1994-01-25
Abstract
Abstract An enclosed, non-vented expulsion fuse structure includes a generally tubular fuse holder for receiving a universal fuse link. The fuse holder includes an inner tube lining of organic material of the type which decomposes in the presence of an arc which results when the fusible element of the fuse link melts or blows. The decomposition of the organic material evolves a turbulent, high-pressure, high-temperature permanent gas which acts to extinguish the arc. The fuse holder is enclosed except at one end thereof wherein the gas is discharged from the fuse holder through an opening at said one end. The opening is closed into an enclosed chamber which receives the gas discharged from the fuse holder. The enclosed chamber has a thermal-quenching medium disposed therein.
Inventors
- 👤 Gary Lee Schurter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:31
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/38; H01H85/42; H01H31/00; H01H31/02; H01H31/12; H01H31/122; H01H31/127; H01H85/43
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
238 words
An enclosed, non-vented expulsion fuse structure for use with a fuse link of the type having a meltable link surrounded by an integral tubular member of arc responsive material and wherein an arc is drawn in said tubular member when said meltable link melts, said fuse link normally having a button head fastener threadedly engaging a first end thereof and an integral flexible lead extending from said tubular member at the opposite end thereof, said fuse structure comprising, in combination: a fuse holder for receiving said fuse link, said fuse holder having a liner of a material of the type wherein energy loss from said arc decomposes a portion of said liner into a turbulent, high-pressure, high-temperature gas; means for mounting said fuse link at one end of said fuse holder wherein said flexible lead extends toward the other end of said fuse holder; means for enclosing said fuse holder except at said other end thereof wherein said gas is discharged from said fuse holder through an opening at said other end; means for closing said opening at said other end into an enclosed chamber, said chamber receiving the gas discharged from said fuse holder and said chamber having a thermal quenching medium disposed therein; and, means for receiving said flexible lead of said fuse link at said other end of said fuse holder and for coupling said flexible lead to an electrical circuit external to said chamber.
Claim 2
Dependent Claim
238 words
An enclosed, non-vented expulsion fuse structure for use with a fuse link of the type having a meltable link surrounded by an integral tubular member of arc responsive material and wherein an arc is drawn in said tubular member when said meltable link melts, said fuse link normally having a button head fastener threadedly engaging a first end thereof and an integral flexible lead extending from said tubular member at the opposite end thereof, said fuse structure comprising, in combination: a fuse holder for receiving said fuse link, said fuse holder having a liner of a material of the type wherein energy loss from said arc decomposes a portion of said liner into a turbulent, high-pressure, high-temperature gas; means for mounting said fuse link at one end of said fuse holder wherein said flexible lead extends toward the other end of said fuse holder; means for enclosing said fuse holder except at said other end thereof wherein said gas is discharged from said fuse holder through an opening at said other end; means for closing said opening at said other end into an enclosed chamber, said chamber receiving the gas discharged from said fuse holder and said chamber having a thermal quenching medium disposed therein; and, means for receiving said flexible lead of said fuse link at said other end of said fuse holder and for coupling said flexible lead to an electrical circuit external to said chamber.
Claim 3
Dependent Claim
19 words
The fuse structure according to claim 1, wherein said fuse holdEr comprises a generally tubular member of organic material.
Claim 4
Dependent Claim
19 words
The fuse structure according to claim 1, wherein said tubular member of said fuse link is an organic material.
Claim 5
Dependent Claim
225 words
An enclosed, non-vented expulsion fuse structure comprising, in combination: a fuse link of the type having a meltable link surrounded by an integral tubular member of arc-responsive material and wherein an arc is drawn in said tubular member when said meltable link melts said fuse link having a threaded first end thereof and an integral flexible lead extending from said tubular member at the opposite end thereof; a fuse holder for receiving said fuse link, said fuse holder having a liner of a material of the type wherein energy loss from said arc decomposes a portion of said liner into a turbulent, high-pressure, high-temperature gas; means for mounting said fuse link at one end of said fuse holder wherein said flexible lead extends toward the other end of said fuse holder; means for enclosing said fuse holder except at said other end thereof wherein said gas is discharged from said fuse holder through an opening at said other end; means for closing said opening at said other end into an enclosed chamber, said chamber receiving the gas discharged from said fuse holder and said chamber having a thermal quenching medium disposed therein; and, means for receiving said flexible lead of said fuse link at one other end of said fuse holder and for coupling said flexible lead to an electrical circuit external to said chamber.
Claim 6
Dependent Claim
225 words
An enclosed, non-vented expulsion fuse structure comprising, in combination: a fuse link of the type having a meltable link surrounded by an integral tubular member of arc-responsive material and wherein an arc is drawn in said tubular member when said meltable link melts said fuse link having a threaded first end thereof and an integral flexible lead extending from said tubular member at the opposite end thereof; a fuse holder for receiving said fuse link, said fuse holder having a liner of a material of the type wherein energy loss from said arc decomposes a portion of said liner into a turbulent, high-pressure, high-temperature gas; means for mounting said fuse link at one end of said fuse holder wherein said flexible lead extends toward the other end of said fuse holder; means for enclosing said fuse holder except at said other end thereof wherein said gas is discharged from said fuse holder through an opening at said other end; means for closing said opening at said other end into an enclosed chamber, said chamber receiving the gas discharged from said fuse holder and said chamber having a thermal quenching medium disposed therein; and, means for receiving said flexible lead of said fuse link at one other end of said fuse holder and for coupling said flexible lead to an electrical circuit external to said chamber.
Claim 7
Dependent Claim
26 words
The fuse structure according to claim 4, wherein said tubular member of said fuse link and said liner of said fuse holder comprise an organic material.
Claim 8
Dependent Claim
44 words
The fuse structure according to claim 4, wherein said fuse holder is of a material of the type wherein energy loss from said arc decomposes a portion of said fuse holder into a turbulent, high-pressure, high-temperature gas, whereby said fuse holder incorporates said liner.
Claim 9
Dependent Claim
234 words
An enclosed, non-vented expulsion fuse structure for use with a fuse link of the type having a meltable link surrounded by an integral tubular member of arc-responsive material and wherein an arc is drawn in said tubular member when said meltable link melts, said fuse link normally having a button head fastener engaging a first end thereof and an integral flexible lead extending from said tubular member at the opposite end thereof, said fuse structure comprising, in combination: a fuse holder for receiving said fuse link said fuse holder comprising a material of the type wherein energy loss from said arc decomposes a portion of said fuse holder into a turbulent, high-pressure, high-temperature gas; means for mounting said fuse link at one end of said fuse holder wherein said flexible lead extends toward the other end of said fuse holder; means for enclosing said fuse holder except at said other end thereof wherein said gas is discharged from said fuse holder through an opening at said other end; means for closing said opening at said other end into an enclosed chamber, said chamber receiving the gas discharged from said fuse holder and said chamber having a thermal quenching medium disposed therein; and, means for receiving said flexible lead of said fuse link at said other end of said fuse holder and for coupling said flexible lead to an electrical circuit external to said chamber.
Claim 10
Dependent Claim
234 words
An enclosed, non-vented expulsion fuse structure for use with a fuse link of the type having a meltable link surrounded by an integral tubular member of arc-responsive material and wherein an arc is drawn in said tubular member when said meltable link melts, said fuse link normally having a button head fastener engaging a first end thereof and an integral flexible lead extending from said tubular member at the opposite end thereof, said fuse structure comprising, in combination: a fuse holder for receiving said fuse link said fuse holder comprising a material of the type wherein energy loss from said arc decomposes a portion of said fuse holder into a turbulent, high-pressure, high-temperature gas; means for mounting said fuse link at one end of said fuse holder wherein said flexible lead extends toward the other end of said fuse holder; means for enclosing said fuse holder except at said other end thereof wherein said gas is discharged from said fuse holder through an opening at said other end; means for closing said opening at said other end into an enclosed chamber, said chamber receiving the gas discharged from said fuse holder and said chamber having a thermal quenching medium disposed therein; and, means for receiving said flexible lead of said fuse link at said other end of said fuse holder and for coupling said flexible lead to an electrical circuit external to said chamber.
Claim 11
Dependent Claim
164 words
An enclosed non-vented expulsion-type fuse structure comprising, in combination: a fuse holder for receiving a universal fuse link said fuse link having an integral tubular member of arc-responsive material and normally having a button head fastener threadedly engaging a first end thereof and an integral flexible lead extending from the said tubular member at the opposite end thereof; means for mounting said fuse link at one end of said fuse holder wherein said flexible lead extends toward the other end of said fuse holder; means for enclosing said fuse holder except at said other end thereOf wherein said gas is discharged from said fuse holder; an enclosed chamber communicating with said fuse holder for receiving the gas discharged from said fuse holder, said chamber having a thermal quenching medium disposed therein; and means for receiving said flexible lead of said fuse link at said other end of said fuse holder and for coupling said flexible lead to an electrical circuit external to said chamber.
Claim 12
Dependent Claim
164 words
An enclosed non-vented expulsion-type fuse structure comprising, in combination: a fuse holder for receiving a universal fuse link said fuse link having an integral tubular member of arc-responsive material and normally having a button head fastener threadedly engaging a first end thereof and an integral flexible lead extending from the said tubular member at the opposite end thereof; means for mounting said fuse link at one end of said fuse holder wherein said flexible lead extends toward the other end of said fuse holder; means for enclosing said fuse holder except at said other end thereOf wherein said gas is discharged from said fuse holder; an enclosed chamber communicating with said fuse holder for receiving the gas discharged from said fuse holder, said chamber having a thermal quenching medium disposed therein; and means for receiving said flexible lead of said fuse link at said other end of said fuse holder and for coupling said flexible lead to an electrical circuit external to said chamber.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |