US3875610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable windshield wiper arm
Assignee: Anderson Company of Indiana
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Filing: 1973-07-24
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Granted: 1975-04-08
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Expires: 1993-07-24
Abstract
Abstract An adjustable extension or tip is provided for a straight end windshield wiper arm. The adjustment is provided by a pair of mating serrated friction plates secured to the arm end and to the extension or tip such that the axis of the extension or tip can be angled in 4.degree. increments to the axis of the wiper arm. One of the purposes for angling the extension or tip is to provide the proper park angle so that a wiper blade assembled on the arm will park parallel to the lower edge of the windshield of a vehicle. Another purpose for angling the extension or tip is to provide the most efficient wipe pattern on the windshield by having the longitudinal axis of the blade align with the flattest portions of the windshield.
Inventors
- 👤 Leo J Wubbe
- 👤 William H Harbison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:20
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3425; B60S1/3429; B60S1/40; B60S1/4083; B60S1/4087; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32368
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
160 words
A windshield wiper arm having a straight end adapted for connection with a connector on a wiper blade, said wiper arm comprising an outer section and a tip section, a pair of friction plates mounted between the outer section and the tip section, one of said friction plates having the outer section nested in a slot in the outer surface thereof, the other friction plate having the tip section nested in a slot in the outer surface thereof, a plurality of mating serrations formed on the inner faces of the plates which serrations are adapted to nest together when the plates are brought into face-to-face engagement, a threaded member passing through the outer section through the two friction plates and into the tip section for locking the outer section to the tip section through the intermediary of the friction plates whereby the axis of the tip section can be angularly disposed with respect to the axis of the outer section.
Claim 2
Dependent Claim
160 words
A windshield wiper arm having a straight end adapted for connection with a connector on a wiper blade, said wiper arm comprising an outer section and a tip section, a pair of friction plates mounted between the outer section and the tip section, one of said friction plates having the outer section nested in a slot in the outer surface thereof, the other friction plate having the tip section nested in a slot in the outer surface thereof, a plurality of mating serrations formed on the inner faces of the plates which serrations are adapted to nest together when the plates are brought into face-to-face engagement, a threaded member passing through the outer section through the two friction plates and into the tip section for locking the outer section to the tip section through the intermediary of the friction plates whereby the axis of the tip section can be angularly disposed with respect to the axis of the outer section.
Claim 3
Dependent Claim
37 words
A windshield wiper arm as claimed in claim 1 wherein each serration is spaced 4.degree. from immediately adjoining serrations so that the tip can be adjusted in 4.degree. increments relative to the outer section of the arm.
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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |