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US5520232A Expired / Lapsed US ⏱️ 0.0 years remaining

Puncture proof tire

Assignee: Exedy Corp
•
Filing: 1994-11-22
•
Granted: 1996-05-28
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Expires: 2014-11-22
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Abstract

Abstract A main tire body, mounted to the rim (3) of a wheel, includes in one embodiment, an annular tire material (6) and a fiat wound spring ring (8) disposed within the annular tire material (6). The annular tire material (6) is a material with a cross section that can form in a semi-circular annular space (7) between the rim (3). The flat wound spring ring (8) a is annularly arranged within the annular space (7). In another embodiment, the main tire body includes an annular first tire material (10), a second tire material (11), and a plurality of airtight chambers (15) which help to absorb impacts. The first tire material (10) is mounted to the rim (3). The second tire material (11) is an annular material with an elastic body attached to the outer peripheral side of the first tire material. The airtight chambers portion (15) are formed in the second tire material between the first tire material. In another embodiment, the main tire body includes an annular first tire material (20), and a second tire material (21). The second tire material (21) is an annular material with an elastic body attached to the outer peripheral side of the first tire material. An airtight annular chamber (22) is formed between the first tire material (20) and second tire material (21). A flat spring ring (24) disposed within the annular chamber (22) to absorb impacts.

Inventors

  • 👤 Heiji Fukutake
  • 👤 Minoru Abe
  • 👤 Toru Fujii

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 08:06
CPC Classifications
B; B60; B60C; B60C7/00; B60C7/10; B60C7/12; B60C7/102; B60C7/14; B60C7/16; B60C7/20; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279; Y10T152/10288; Y10T152/10297; Y10T152/10306

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 82 words
A puncture-proof tire assembly comprising: a first annular portion engagable with the rim of a wheel; a second annular portion engaging said first annular portion, said first and second annular portions defining at least one non-pressurizable chamber within the tire assembly with a pair of opposing recesses formed in said second annular portion, said pair of opposing recesses extending from said non-pressurizable chamber into opposing sides of said second annular portion; and an annular spring retained in said pair of opposing recesses.
Claim 2
Dependent Claim 82 words
A puncture-proof tire assembly comprising: a first annular portion engagable with the rim of a wheel; a second annular portion engaging said first annular portion, said first and second annular portions defining at least one non-pressurizable chamber within the tire assembly with a pair of opposing recesses formed in said second annular portion, said pair of opposing recesses extending from said non-pressurizable chamber into opposing sides of said second annular portion; and an annular spring retained in said pair of opposing recesses.
Claim 3
Dependent Claim 28 words
A puncture-proof tire assembly as set forth in claim 1 further comprising: said first annular portion and said second annular portion being bonded together sealing said non-pressurizable chamber.
Claim 4
Dependent Claim 30 words
A puncture-proof tire assembly is set forth in claim 1, wherein said annular spring has a semicircular cross-section in an unstressed state and is partially stressed within said opposing recesses.
Claim 5
Dependent Claim 120 words
A puncture-proof tire assembly comprising: a first annular portion engagable with the rim of a wheel, said first annular portion defining an inner annular surface of a tire assembly; a second annular portion fixed to said first annular portion, said second annular portion defining an outer annular surface of said tire assembly, said second annular portion having an elongated channel formed therein such that said first annular portion encloses said elongated channel defining a non-pressurizable chamber within said tire assembly, said elongated channel being formed with a pair of opposing recesses, said pair of opposing recesses extending from said non-pressurizable chamber into opposing sides of said second annular portion; and an annular spring retained in said pair of opposing recesses.
Claim 6
Dependent Claim 120 words
A puncture-proof tire assembly comprising: a first annular portion engagable with the rim of a wheel, said first annular portion defining an inner annular surface of a tire assembly; a second annular portion fixed to said first annular portion, said second annular portion defining an outer annular surface of said tire assembly, said second annular portion having an elongated channel formed therein such that said first annular portion encloses said elongated channel defining a non-pressurizable chamber within said tire assembly, said elongated channel being formed with a pair of opposing recesses, said pair of opposing recesses extending from said non-pressurizable chamber into opposing sides of said second annular portion; and an annular spring retained in said pair of opposing recesses.
Claim 7
Dependent Claim 18 words
A puncture-proof tire assembly as set forth in claim 4 wherein said annular spring has a semicircular cross-section.
Claim 8
Dependent Claim 30 words
A puncture-proof tire assembly as set forth in claim 4 wherein said annular spring has a semicircular cross-section in an unstressed state and is partially stressed within said opposing recesses.
Claim 9
Dependent Claim 26 words
A puncture-proof tire assembly as set forth in claim 4 wherein said second annular portion is formed with a tire tread on an outer circumferential surface.

References Cited (Backward Citations)

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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) 1999-05-28 1999-11-27 2000-05-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-05-28 2003-11-27 2004-05-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-05-28 2007-11-27 2008-05-28 $7700.00 Window Closed / Lapsed

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