US5548093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low noise hose
Assignee: Toyoda Gosei Co Ltd
•
Filing: 1994-04-29
•
Granted: 1996-08-20
•
Expires: 2014-04-29
Abstract
Abstract A low noise hose including a hollow cylindrical sound absorption member made of soft foam material, a synthetic resin net and/or a spiral wire therein, and a sound insulation tube that is made of soft rubber and has a bellow-like shape disposed about the sound absorption member. The sound insulation tube intercepts the hose internal noise, and it is thicker than a conventional hose so that it is resilient to heat, oil or gas. The sound insulation tube has a bellow-like shape so that it shrinks following the pulsation of intake air, and absorbs it.
Inventors
- 👤 Jyunichi Sato
- 👤 Takahiro Komori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:45
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/118; F02; F02M; F02M35/00; F02M35/12; F02M35/1205; F02M35/1227; F02M35/1272; F02M35/1277; F16L11/12; F16L11/121; F16L11/125; F05; F05C; F05C2225/00; F05C2225/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
79 words
A low noise hose comprising: a hollow cylindrical sound absorption member made from a foamed material; a sound insulation tube covering an outer periphery of said sound absorption member, said insulation tube having at least portions thereof spaced outwardly from said sound absorption member so as to define a plurality of air spaces therebetween at such spaced portions; and a net provided on an inner periphery of said sound absorption member for preventing shrinkage of the sound absorption member.
Claim 2
Dependent Claim
79 words
A low noise hose comprising: a hollow cylindrical sound absorption member made from a foamed material; a sound insulation tube covering an outer periphery of said sound absorption member, said insulation tube having at least portions thereof spaced outwardly from said sound absorption member so as to define a plurality of air spaces therebetween at such spaced portions; and a net provided on an inner periphery of said sound absorption member for preventing shrinkage of the sound absorption member.
Claim 3
Dependent Claim
16 words
A low noise hose according to claim 1, wherein said net is made of synthetic resin.
Claim 4
Dependent Claim
33 words
A low noise hose according to claim 1, wherein said sound insulation tube is made by blow molding soft polymer into a bellows-like configuration defined by a series of repeating ridges and grooves.
Claim 5
Dependent Claim
14 words
A low noise hose according to claim 3, wherein said soft polymer is rubber.
Claim 6
Dependent Claim
15 words
A low noise hose according to claim 3, wherein said soft polymer is synthetic resin.
Claim 7
Dependent Claim
46 words
A low noise hose according to claim 3, further comprising a side member disposed within each end of said insulation tube, each end of said insulation tube including a projection, each said side member including a recess for engaging said projection of said sound insulation tube.
Claim 8
Dependent Claim
91 words
A low noise hose comprising: a hollow cylindrical sound absorption member made of soft foamed material; a sound insulation tube provided about an outer periphery of said sound absorption member so that a series of air gaps are defined along a length of said hose between said sound absorption member and said sound insulation tube; a synthetic resin net disposed on an inner periphery of said sound absorption member; and a spiral wire provided on an inner periphery of said synthetic resin net for preventing shrinkage of said sound absorption member.
Claim 9
Dependent Claim
91 words
A low noise hose comprising: a hollow cylindrical sound absorption member made of soft foamed material; a sound insulation tube provided about an outer periphery of said sound absorption member so that a series of air gaps are defined along a length of said hose between said sound absorption member and said sound insulation tube; a synthetic resin net disposed on an inner periphery of said sound absorption member; and a spiral wire provided on an inner periphery of said synthetic resin net for preventing shrinkage of said sound absorption member.
References Cited (Backward Citations)
US3903928A
Cited
DE2749665A1
Cited
US4315558A
Cited
EP0318636A1
Cited
US4993513A
Cited
US5092122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-20 | 2000-02-19 | 2000-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-20 | 2004-02-19 | 2004-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-20 | 2008-02-19 | 2008-08-20 | $7700.00 | Window Closed / Lapsed |