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US4509870A Expired / Lapsed US ⏱️ 0.0 years remaining

Plastic slide bearing

Assignee: MIURA KUMIHIMO KOJYO A CORP OF JAPAN KK
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Filing: 1983-09-07
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Granted: 1985-04-09
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Expires: 2003-09-07
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Abstract

Abstract A plastic sliding bearing comprises an inner cylindrical member of fluoride such as fluoroplastics and an outer cylindrical member of fiber reinforced thermosetting resin arranged coaxially and integrally with the inner cylindrical member. The inner and outer cylindrical members are firmly and rigidly united with each other to prevent separation from each other during use of the sliding bearing. The firm and reliable unification of the inner and outer cylindrical members is achieved by providing on the external surface of the inner cylindrical member projections or biting means firmly engageable with the internal surface of the outer cylindrical member. The plastic sliding bearing of the present invention exhibits superior durability to similar plastic slide bearings of the prior art.

Inventors

  • 👤 Kiyozi Taki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 22:56
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16C33/208; F16C2208/00; F16C2208/02; F16C2208/80; F16C2208/82; F16C2226/00; F16C2226/50

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 87 words
A plastic slide bearing comprising an inner cylindrical member and an outer cylindrical member of fiber reinforced thermosetting resin coaxially and integrally formed with the inner cylindrical member, characterized in that said inner cylindrical member is a cylindrical cloth woven by warps of fluoride fibers and loop threads and wefts of non-fluoride fibers, and loops formed in the loop threads of said non-fluoride fibers are provided only on the external surface of the cylindrical cloth to firmly grip the outer cylindrical member of fiber reinforced thermosetting resin.
Claim 2
Dependent Claim 87 words
A plastic slide bearing comprising an inner cylindrical member and an outer cylindrical member of fiber reinforced thermosetting resin coaxially and integrally formed with the inner cylindrical member, characterized in that said inner cylindrical member is a cylindrical cloth woven by warps of fluoride fibers and loop threads and wefts of non-fluoride fibers, and loops formed in the loop threads of said non-fluoride fibers are provided only on the external surface of the cylindrical cloth to firmly grip the outer cylindrical member of fiber reinforced thermosetting resin.
Claim 3
Dependent Claim 15 words
A plastic slide bearing of claim 1 in which said non-fluoride fibers are polyester fibers.
Claim 4
Dependent Claim 18 words
A plastic slide bearing of claim 1 in which said loop forming fibers are mono-filament fibers of polyester.

References Cited (Backward Citations)

US3055788A Cited
US3104136A Cited
US3110530A Cited
US3458374A Cited
US3507023A Cited
JPS5033348A Cited
JPS5162243A Cited
JPS54106747A Cited
US4432659A Cited
JPS58160626A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-04-08 1988-10-08 1989-04-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-04-08 1992-10-08 1993-04-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-04-08 1996-10-08 1997-04-09 $7700.00 Window Closed / Lapsed

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