Patent US4723336A successfully refreshed from Google Patents.
US4723336A
Expired / Lapsed
US
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Wiper blade
Assignee: HYOGO KAISAN KK
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Filing: 1986-06-12
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Granted: 1988-02-09
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Expires: 2006-06-12
Abstract
Abstract A wiper blade for a windshield glass of a vehicle, including a pair of opposing blades which extend approximately parallel from the side edges of the face of a blade body, said body being provided with a component at its base for engagement to a supporting wiper arm. A center rib extends from the center of the face of the blade body between the two opposing blades, and on at least the inside of each of the opposing blades, a wiping piece projects in the longitudinal direction in such a manner that it is in contact with the surface of the glass when the wiper blade is operated.
Inventors
- 👤 Yasuzi Nakayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:47
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; B60S1/52; B60S1/522; B60S1/524; B60S1/04; B60S1/32; B60S1/38; B60S2001/3827; B60S2001/3829; B60S2001/3836; B60S2001/3837
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
199 words
A wiper blade for clearing a surface, comprising an elongated wiper body having a base side and a face side and said face side having side edges, a pair of opposing blades which extend substantially parallel with each other and along the length of said body, one of said opposing blades being connected to each of said side edges and extending away from said face side, said body further including means on said base side for attachment of said wiper blade to a supporting wiper arm, said wiper blade further comprising a center rib which is connected to said body between said opposing blades and said side edges, said center rib being shorter than said opposing blades and out of contact with the surface during operation, said opposing blades flexing when the wiper blade is moved across the surface and one of said blades flexing into engagement with said center rib at a level which is displaced from said surface, and each of said opposing blades having a wiping piece formed thereon and extending along the length thereof, said wiping piece of each blade being located to contact said surface when the wiper blade is moved across the surface.
Claim 2
Dependent Claim
199 words
A wiper blade for clearing a surface, comprising an elongated wiper body having a base side and a face side and said face side having side edges, a pair of opposing blades which extend substantially parallel with each other and along the length of said body, one of said opposing blades being connected to each of said side edges and extending away from said face side, said body further including means on said base side for attachment of said wiper blade to a supporting wiper arm, said wiper blade further comprising a center rib which is connected to said body between said opposing blades and said side edges, said center rib being shorter than said opposing blades and out of contact with the surface during operation, said opposing blades flexing when the wiper blade is moved across the surface and one of said blades flexing into engagement with said center rib at a level which is displaced from said surface, and each of said opposing blades having a wiping piece formed thereon and extending along the length thereof, said wiping piece of each blade being located to contact said surface when the wiper blade is moved across the surface.
Claim 3
Dependent Claim
51 words
A wiper blade as described in claim 1, and further comprising connecting pieces for connecting said two opposing blades at their bases to said blade body, each of said connecting pieces having an angular cross-sectional shape to both facilitate the inward flexure and hinder the outward flexure of said opposing blades.
Claim 4
Dependent Claim
36 words
A wiper blade as described in claim 2, wherein the cross-sectional shape of said blade body is substantially the shape of a five-pointed star, and lateral channels are formed on each side of said blade body.
Claim 5
Dependent Claim
23 words
A wiper blade as described in any of claims 1 through 3, wherein said center rib is thinner than said two opposing blades.
Claim 6
Dependent Claim
30 words
A wiper blade as describd in claim 1, and further including means for injecting a cleaning fluid in spaces formed between said center rib and each of said opposing blades.
Claim 7
Dependent Claim
25 words
A wiper blade as described in claim 1, wherein said wiping piece of each of said blades extends in the direction of said center rib.
Claim 8
Dependent Claim
24 words
A wiper blade as described in claim 6, wherein said wiping piece is engageable with said center rib during operation when said blades flex.
Claim 9
Dependent Claim
28 words
A wiper blade as described in claim 1, wherein said wiping piece of each of said blades extends in the direction which is away from said center rib.
References Cited (Backward Citations)
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Cited
US2080129A
Cited
CH427534A
Cited
US4339839A
Cited
US4317251A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-08 | 1991-08-10 | 1992-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-08 | 1995-08-10 | 1996-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-08 | 1999-08-10 | 2000-02-09 | $7700.00 | Window Closed / Lapsed |