US3656208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper
Assignee: Denso Corp
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Filing: 1969-12-23
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Granted: 1972-04-18
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Expires: 1989-12-23
Abstract
Abstract Improved construction of a windshield wiper in which a wiper arm is supported by a pivot shaft by means of an arm joint. The arm joint has an extension forming a driving lever integrally formed in the arm joint, the pivot shaft is provided with a disc-like bearing plate integral therewith and extending radially therefrom so that the bearing plate is supported at its outer peripheral portion. The wiper arm may comprise a sub-arm together with a main arm, and the sub-arm is formed with an arcuate slot at its hinged portion through which the pivot shaft passes. The size and configuration of the slot so determined that the position of the sub-arm can be freely selected without being restricted by the position of the pivot shaft of the main arm.
Inventors
- 👤 Masumi Kato
- 👤 Yoshiyuki Morita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:40
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3402; B60S1/3406
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
79 words
An improved windshield wiper assembly comprising: a wiper arm provided with wiping blade means at the tip thereof, a pivot shaft for supporting said wiper arm, an arm joint for connecting said wiper arm to said pivot shaft, bearing means for supporting said pivot shaft, a disc-like bearing plate integrally formed with said pivot shaft and extending radially therefrom, and a pressure receiving member(s) provided with said bearing means for supporting the outer peripheral portion of said bearing plate.
Claim 2
Dependent Claim
79 words
An improved windshield wiper assembly comprising: a wiper arm provided with wiping blade means at the tip thereof, a pivot shaft for supporting said wiper arm, an arm joint for connecting said wiper arm to said pivot shaft, bearing means for supporting said pivot shaft, a disc-like bearing plate integrally formed with said pivot shaft and extending radially therefrom, and a pressure receiving member(s) provided with said bearing means for supporting the outer peripheral portion of said bearing plate.
Claim 3
Dependent Claim
75 words
An improved windshield wiper assembly as in claim 1, wherein said wiper arm comprises: a main arm and a sub-arm freely rotatable about a hinge point thereof, said sub-arm being formed with a slot at its hinged portion through which said pivot shaft of said main arm passes, and said slot having its size and configuration determined according to the diameter of said pivot shaft as well as the rotational angle of said wiper arm.
Claim 4
Dependent Claim
41 words
An improved windshield wiper assembly as in claim 1, wherein: an extension formed in said arm joint constitutes a driving lever for driving said wiper arm, and said driving lever is operatively connectable to a wiper driving motor through connecting means.
Claim 5
Dependent Claim
88 words
An improvement for use in a windshield wiper assembly comprising a wiper arm with wiping blade means at the end thereof, a pivot shaft for supporting said wiper arm, an arm joint for connecting said wiper arm to said pivot shaft and bearing means for supporting said pivot shaft, said improvement comprising: a disc-like bearing plate integrally formed with said pivot shaft and extending radially therefrom, and at least one pressure receiving member provided with said bearing means for supporting the outer peripheral portion of said bearing plate.
Claim 6
Dependent Claim
88 words
An improvement for use in a windshield wiper assembly comprising a wiper arm with wiping blade means at the end thereof, a pivot shaft for supporting said wiper arm, an arm joint for connecting said wiper arm to said pivot shaft and bearing means for supporting said pivot shaft, said improvement comprising: a disc-like bearing plate integrally formed with said pivot shaft and extending radially therefrom, and at least one pressure receiving member provided with said bearing means for supporting the outer peripheral portion of said bearing plate.
Claim 7
Dependent Claim
33 words
An improvement as in claim 4 wherein said pressure receiving member comprises pressure receiving means fixed with respect to said bearing means and slotted for receiving an edge portion of said bearing plate.
Claim 8
Dependent Claim
59 words
An improvement as in claim 4 wherein: said bearing plate includes a plurality of recesses disposed around its outer peripheRy, and said at least one pressure receiving member comprises a plurality of roller bearing means, each with at least a portion thereof being rotatably journaled within one of said recesses and disposed between said periphery and said bearing means.
Claim 9
Dependent Claim
49 words
An improvement as in claim 4 wherein said at least one pressure receiving member comprises: a plurality of axles fixed with respect to said bearing means and disposed outside the periphery of said bearing plate, and roller bearing means rotatably disposed on said axles for rotatably engaging said periphery.
Claim 10
Dependent Claim
28 words
An improvement as in claim 7 wherein said roller bearing means are generally cylindrical in shape with a recessed section disposed around the circumference of said cylindrical shape.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |