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US3694723A Expired / Lapsed US ⏱️ 0.0 years remaining

Motor vehicle windshield wiper having a parking position outside the wiping area

Assignee: Individual
•
Filing: 1971-08-24
•
Granted: 1972-09-26
•
Expires: 1991-08-24
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Abstract

Abstract A windshield wiper for motor vehicles has a parking position of the wiper arm outside the wiping area, and includes a motor having a drive shaft, a crank guide member secured to the shaft, a resiliently biased crank member adjustable longitudinally of the guide member, switching means operable to initiate a parking movement and control means included in the switching means and engageable with a cam rotated with the crank member, upon activation of the switching means, to very the crank radius against the resilient bias. The control cam has, with respect to its direction of rotation, a steep ascent surface and an extended descent surface, which are engageable by the control member. Preferably the control cam is fixedly connected to the crank member and actuates an additional contact of the switching means only in the wiper parking position, to effect final switching off of the wiper motor.

Inventors

  • 👤 Theodor Schneider
  • 👤 Karl-Friedrich Schubert
  • 👤 Jacob Heinz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 22:18
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/06; B60S1/08; B60S1/16; B60S1/163

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 122 words
A windshield wiper for motor vehicles, having a parking position of the wiper arm outside the wiping area, and of the type including a motor having a drive shaft, a crank guide member secured to the shaft, a resiliently biased crank member adjustable longitudinally of the guide member, switching means operable to initiate a parking movement and control means included in the switching means and engageable with control cam means rotatable with the crank member, upon activation of the switching means, to vary the crank radius against such resilient bias; in combination, said control cam means including a control cam having, with respect to its direction of rotation, a steep ascent surface and an extended descent surface, engageable by said control member.
Claim 2
Dependent Claim 122 words
A windshield wiper for motor vehicles, having a parking position of the wiper arm outside the wiping area, and of the type including a motor having a drive shaft, a crank guide member secured to the shaft, a resiliently biased crank member adjustable longitudinally of the guide member, switching means operable to initiate a parking movement and control means included in the switching means and engageable with control cam means rotatable with the crank member, upon activation of the switching means, to vary the crank radius against such resilient bias; in combination, said control cam means including a control cam having, with respect to its direction of rotation, a steep ascent surface and an extended descent surface, engageable by said control member.
Claim 3
Dependent Claim 22 words
A windshield wiper for motor vehicles, as in claim 1, wherein said control cam means is fixedly connected to said crank member.
Claim 4
Dependent Claim 64 words
A windshield wiper for motor vehicles, as in claim 1, including a switch having contacts controlling connection of said motor to a source of potential; and an additional contact included in an energizing circuit for said motor; said control cam means actuating said additional contact only when said switch is moved to the wiper parking position, to perform the final disconnection of said motor.
Claim 5
Dependent Claim 25 words
A windshield wiper for motor vehicles, as in claim 3, in which said control cam means includes a switching cam cooperable with said additional contact.
Claim 6
Dependent Claim 40 words
A windshield wiper for motor vehicles, as in claim 4, in which said switching means comprises a solenoid having an armature operating said control member; said additional contact, when operated by said switching cam, short-circuiting said solenoid and said motor.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-09-26 1976-03-27 1976-09-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-09-26 1980-03-27 1980-09-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-09-26 1984-03-27 1984-09-26 $7700.00 Window Closed / Lapsed

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