US3893204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper
Assignee: Robert Bosch GmbH
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Filing: 1973-10-10
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Granted: 1975-07-08
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Expires: 1993-10-10
Abstract
Abstract A control bracket that can be made in one piece from sheet metal has two arms at right angles, one of them having a U-shaped hook for mounting the wiper blade of a windshield wiper and the other having two bent over ends through which a rivet passes to provide a pivot, in one case for the wiper arm and in the other case for the control arm that causes the wiper blade to swing with respect to the wiper arm. The bent over ends provide bearing surfaces on both sides of the arms and include space for anti-friction washers between each side of the arm and the opposite bearing surface of the control bracket.
Inventors
- 👤 Erich Kolb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:54
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/40; B60S1/4006; B60S1/34; B60S1/3402; B60S1/3404; B60S1/3406; B60S1/4009
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
211 words
A windshield wiper mechanism for a motor vehicle for use with a replaceable wiper blade, comprising: a control bracket having a first arm (22) Serving as a link member for pivotally holding said wiper blade, and a power-driven wiper arm and a control arm both pivotally connected to said wiper blade by said control bracket so as to allow rotation of said wiper blade relative to said wiper arm, said control bracket (20) being made of sheet metal and having a second arm (21) a portion of which separates the places at which said wiper arm and said control arm are respectively attached pivotally to said control bracket and having bent over tongues providing U-shaped portions at both said attachment places to hold respective mounting rivet members passing through said wiper arm and said control arm respectively and to provide, on the inside of the U-shape, a pair of opposed bearing surfaces (25, 26) of said control bracket, one of said pairs of surfaces engaging surfaces of said wiper arm and the other engaging surfaces of said control arm, said second arm (21) of said control bracket having a portion reversely bent, as seen from the side, between said attachment places, which portion includes a straight portion between mutually reverse bends.
Claim 2
Dependent Claim
211 words
A windshield wiper mechanism for a motor vehicle for use with a replaceable wiper blade, comprising: a control bracket having a first arm (22) Serving as a link member for pivotally holding said wiper blade, and a power-driven wiper arm and a control arm both pivotally connected to said wiper blade by said control bracket so as to allow rotation of said wiper blade relative to said wiper arm, said control bracket (20) being made of sheet metal and having a second arm (21) a portion of which separates the places at which said wiper arm and said control arm are respectively attached pivotally to said control bracket and having bent over tongues providing U-shaped portions at both said attachment places to hold respective mounting rivet members passing through said wiper arm and said control arm respectively and to provide, on the inside of the U-shape, a pair of opposed bearing surfaces (25, 26) of said control bracket, one of said pairs of surfaces engaging surfaces of said wiper arm and the other engaging surfaces of said control arm, said second arm (21) of said control bracket having a portion reversely bent, as seen from the side, between said attachment places, which portion includes a straight portion between mutually reverse bends.
Claim 3
Dependent Claim
31 words
A windshield wiper mechanism as defined in claim 1 in which said first and second arms (22, 21) of said control bracket (20) extend in directions approximately perpendicular to each other.
Claim 4
Dependent Claim
67 words
A windshield wiper mechanism as defined in claim 1 in which one end (23) of said control bracket as seen from the side is bent over clockwise and the other end (24) counterclockwise to provide said U-shaped portions, so that said wiper arm (1) and said control arm (2) are linked to opposite flat sides of the midportion of said second arm of said control bracket (20).
Claim 5
Dependent Claim
54 words
A windshield wiper mechanism as defined in claim 1 in which anti-friction washers (28) are provided between said wiper arm (1) and one pair of opposed bearing surfaces (25, 26) of said control bracket and between said control arm (2) and the other pair of opposed bearing surfaces (25, 26) of said control bracket.
Claim 6
Dependent Claim
21 words
A windshield wiper mechanism as defined in claim 4 in which said anti-friction washers (28) are made of synthetic resin material.
Claim 7
Dependent Claim
22 words
A windshield wiper mechanism as defined in claim 4 in which said anti-friction washers (28) are made of a suitable metallic material.
Claim 8
Dependent Claim
40 words
A windshield wiper mechanism as defined in claim 1 in which said rivet members (27) are provided with shanks that are turned down at their extremity to provide a shoulder for the respective bent over tongues of said control bracket.
Claim 9
Dependent Claim
42 words
A windshield wiper mechanism as defined in claim 1 in which said control bracket (20) inclusive of said first arm (22) serving as a link member for holding said wiper blade is made in one piece of a strip of sheet metal.
Claim 10
Dependent Claim
34 words
A windshield wiper mechanism as defined in claim 8 in which said first arm of said control bracket serving as a link member is in the form of a U-shaped bent over hook (40).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |