US3716888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper arm
Assignee: Trico Products Corp
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Filing: 1971-08-26
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Granted: 1973-02-20
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Expires: 1991-08-26
Abstract
Abstract A windshield wiper arm assembly includes a retainer for housing and journaling a pivotally mounted wiper arm mounting head and also for supporting a cantilever type self-biasing arm extension member. A spring latch member releasably retains the mounting head fixed with respect to the retainer and also functions to secure the mounting head in position on the driving burr and pivot shaft assembly in a positive operative position.
Inventors
- 👤 W Riester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:46
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3425; B60S1/3445; B60S1/3459
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
88 words
A windshield wiper arm assembly comprising a retainer, a cantilever supported leaf spring formed to exert pressure on a windshield wiper blade for biasing the blade against the windshield secured at one end to said retainer, blade securing means secured at the other end of said leaf spring for attaching a wiper blade to said arm assembly, mounting means pivotally secured to said retainer for attaching said arm to a pivot shaft and releasable latching means for retaining said mounting means in operative position relative to said retainer.
Claim 2
Dependent Claim
88 words
A windshield wiper arm assembly comprising a retainer, a cantilever supported leaf spring formed to exert pressure on a windshield wiper blade for biasing the blade against the windshield secured at one end to said retainer, blade securing means secured at the other end of said leaf spring for attaching a wiper blade to said arm assembly, mounting means pivotally secured to said retainer for attaching said arm to a pivot shaft and releasable latching means for retaining said mounting means in operative position relative to said retainer.
Claim 3
Dependent Claim
88 words
A windshield wiper arm assembly comprising a retainer, a cantilever supported leaf spring formed to exert pressure on a windshield wiper blade for biasing the blade against the windshield secured at one end to said retainer, blade securing means secured at the other end of said leaf spring for attaching a wiper blade to said arm assembly, mounting means pivotally secured to said retainer for attaching said arm to a pivot shaft and releasable latching means for retaining said mounting means in operative position relative to said retainer.
Claim 4
Dependent Claim
88 words
A windshield wiper arm assembly comprising a retainer, a cantilever supported leaf spring formed to exert pressure on a windshield wiper blade for biasing the blade against the windshield secured at one end to said retainer, blade securing means secured at the other end of said leaf spring for attaching a wiper blade to said arm assembly, mounting means pivotally secured to said retainer for attaching said arm to a pivot shaft and releasable latching means for retaining said mounting means in operative position relative to said retainer.
Claim 5
Dependent Claim
28 words
A windshield wiper arm assembly according to claim 1 wherein said mounting means includes a recess for receiving a complementary pivot shaft drive burr in driving engagement therewith.
Claim 6
Dependent Claim
29 words
A windshield wiper arm assembly according to claim 1 wherein said latching means is pivotally mounted on said retainer and includes a latching hasp disposed adjacent said mounting means.
Claim 7
Dependent Claim
18 words
A windshield wiper arm assembly according to claim 1 wherein said mounting means is nestled within said retainer.
Claim 8
Dependent Claim
23 words
A windshield wiper arm assembly according to claim 3 wherein said mounting means includes a latch keeper for engagement with said latching hasp.
Claim 9
Dependent Claim
26 words
A windshield wiper arm assembly according to claim 5 wherein said latching means is spring biased to urge said hasp into engagement with said latch keeper.
Claim 10
Dependent Claim
37 words
A windshield wiper arm assembly according to claim 6 wherein said mounting means includes a camming surface for directing said latching hasp into engagement with said latch keeper when said retainer is pivoted toward said mounting means.
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |