Patent US5704401A successfully refreshed from Google Patents.
US5704401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing machine hose
Assignee: Totaku Industries Inc
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Filing: 1996-04-10
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Granted: 1998-01-06
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Expires: 2016-04-10
Abstract
Abstract With a desired intermediate portion as a boundary, in a hose, a corrugated wall is formed on one side of the boundary while a scalene-triangularly corrugated wall is formed on the other side of the boundary, the whole of a hose is formed of a soft synthetic resin material and a hard synthetic resin material in the form of a double-layered wall. The soft synthetic resin material is made thicker than the hard synthetic resin material in a portion on a connection cylindrical portion side while the hard synthetic resin material is made thicker than the soft synthetic resin material in a portion on a drainage cylindrical portion side.
Inventors
- 👤 Kouki Fukui
- 👤 Hiroyuki Masui
- 👤 Toshihiro Nakanishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:00
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; D; D06; D06F; D06F33/00; D06F33/30; D06F33/32; D06F33/42; D06F39/00; D06F39/08; D06F39/083; Y; Y10; Y10S; Y10S138/00; Y10S138/11
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
193 words
A washing machine hose having a first end and a second end opposite said first end, said washing machine hose comprising: a connection cylindrical portion positioned on said first end of said washing machine hose for being connected to a drainage pipe of a washing machine; an intermediate cylindrical portion disposed along an intermediate portion of said washing machine hose; a drainage cylindrical portion formed on said second end of said washing machine hose; an annularly corrugated wall formed between said connection cylindrical portion and said intermediate cylindrical portion; and a scalene-triangularly corrugated wall formed between said intermediate cylindrical portion and said drainage cylindrical portion; an integrated double-layered wall having a first layer comprising a soft synthetic resin material and a second layer comprising a hard synthetic resin material, and wherein said soft synthetic resin material has a thickness greater than that of said hard synthetic resin material in said annularly corrugated wall and said hard synthetic resin material has a thickness greater than that of said soft synthetic resin material in said scalene-triangularly corrugated wall, such that said scalene-triangularly corrugated wall has a higher rigidity than that of said annularly corrugated wall.
Claim 2
Dependent Claim
193 words
A washing machine hose having a first end and a second end opposite said first end, said washing machine hose comprising: a connection cylindrical portion positioned on said first end of said washing machine hose for being connected to a drainage pipe of a washing machine; an intermediate cylindrical portion disposed along an intermediate portion of said washing machine hose; a drainage cylindrical portion formed on said second end of said washing machine hose; an annularly corrugated wall formed between said connection cylindrical portion and said intermediate cylindrical portion; and a scalene-triangularly corrugated wall formed between said intermediate cylindrical portion and said drainage cylindrical portion; an integrated double-layered wall having a first layer comprising a soft synthetic resin material and a second layer comprising a hard synthetic resin material, and wherein said soft synthetic resin material has a thickness greater than that of said hard synthetic resin material in said annularly corrugated wall and said hard synthetic resin material has a thickness greater than that of said soft synthetic resin material in said scalene-triangularly corrugated wall, such that said scalene-triangularly corrugated wall has a higher rigidity than that of said annularly corrugated wall.
Claim 3
Dependent Claim
25 words
A washing machine hose according to claim 1, wherein said annularly corrugated wall includes a large-diameter corrugated wall portion and a small-diameter corrugated wall portion.
Claim 4
Dependent Claim
46 words
A washing machine hose according to claim 1, wherein said annularly corrugated wall includes an internal fixing cylindrical portion for being connected to an inside of said washing machine and a washing machine-wall fixing cylindrical portion for being connected to a wall of said washing machine.
Claim 5
Dependent Claim
27 words
A washing machine hose according to claim 1, wherein said intermediate cylindrical portion comprises a boundary portion between said annularly corrugated wall and said scalene-triangularly corrugated wall.
Claim 6
Dependent Claim
21 words
A washing machine hose as in claim 1, wherein said double-layered wall extends a full length of said washing machine hose.
Claim 7
Dependent Claim
61 words
A washing machine hose as in claim 1, wherein said scalene-triangularly corrugated wall includes corrugations, each of said corrugations including a first linear portion pivotally connected to a second linear portion, wherein an angle between said first linear portion and said second linear portion decreases as said scalene-triangularly corrugated wall narrows and said angle increases as said scalene-triangularly corrugated wall widens.
Claim 8
Dependent Claim
31 words
A washing machine hose as in claim 1, wherein said scalene-triangularly corrugated wall has a predetermined rigidity to independently maintain a shape and said annularly corrugated wall lacks said predetermined rigidity.
Claim 9
Dependent Claim
34 words
A washing machine hose as in claim 1, wherein said scalene-triangularly corrugated wall is selectively expandable and contractible, said scalene-triangularly corrugated wall having a predetermined rigidity to independently maintain an expanded or contracted length.
Claim 10
Dependent Claim
33 words
A washing machine hose as in claim 1, wherein said thickness of said first layer and said thickness of said second layer are inversely varied along a length of said intermediate cylindrical portion.
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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) | 2001-01-05 | 2001-07-07 | 2002-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-05 | 2005-07-07 | 2006-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-05 | 2009-07-07 | 2010-01-06 | $7700.00 | Window Closed / Lapsed |