Patent US3879792A successfully refreshed from Google Patents.
US3879792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windshield wiper for automotive vehicles
Assignee: Robert Bosch GmbH
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Filing: 1972-05-12
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Granted: 1975-04-29
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Expires: 1992-05-12
Abstract
Abstract A carrying arm of U-shaped cross-section receives a portion of a pivot arm which is also of U-shaped cross-section but of smaller dimensions so as to fit with clearance into the carrying arm. A pivot connector pivotally connects the pivot arm with the carrying arm and has portions which project beyond the pivot arm into engagement with an inner surface of the carrying arm so as to maintain the two arms spaced from one another.
Inventors
- 👤 Dietmar Brummer
- 👤 Hans Maier
- 👤 Werner Schwedhelm
- 👤 Helmut Steegmuller
- 👤 Manfred Donauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:15
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/38; B60S1/3801; B60S2001/3812; B60S2001/3813; B60S2001/3815
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
253 words
In a windshield wiper for automotive vehicles, a combination comprising a carrying arm having at least a portion of U-shaped cross-section, said portion of said carrying arm having a pair of first side walls and a first transverse connecting wall; at least one pivot arm of smaller dimensioned U-shaped cross section having an open side and in part received with clearance in said portion of said carrying arm, said pivot arm having a pair of second side walls each inwardly spaced from one of said first side walls and a second transverse wall being inwardly spaced from said first transverse wall and having an opening; a pivot connector pivotally connecting said pivot arm with said carrying arm and being substantially T-shaped and having a shaft portion received between said second side walls and extending in part through said opening and having an end facing said open side of said pivot arm and provided with a recess, and a cross portion located intermediate said transverse walls in contact with said first transverse wall and extending between said first side walls, and comprising projecting portions projecting beyond the cross-section of said pivot arm by extending outwardly beyond said second side walls and said second transverse wall, so as to maintain said pivot arm out of contact with said carrying arm; and retaining lugs provided on the side walls of one of said pairs and extending into said recess of said pivot connector and engaging and retaining said pivot connector against displacement out of said arms.
Claim 2
Dependent Claim
253 words
In a windshield wiper for automotive vehicles, a combination comprising a carrying arm having at least a portion of U-shaped cross-section, said portion of said carrying arm having a pair of first side walls and a first transverse connecting wall; at least one pivot arm of smaller dimensioned U-shaped cross section having an open side and in part received with clearance in said portion of said carrying arm, said pivot arm having a pair of second side walls each inwardly spaced from one of said first side walls and a second transverse wall being inwardly spaced from said first transverse wall and having an opening; a pivot connector pivotally connecting said pivot arm with said carrying arm and being substantially T-shaped and having a shaft portion received between said second side walls and extending in part through said opening and having an end facing said open side of said pivot arm and provided with a recess, and a cross portion located intermediate said transverse walls in contact with said first transverse wall and extending between said first side walls, and comprising projecting portions projecting beyond the cross-section of said pivot arm by extending outwardly beyond said second side walls and said second transverse wall, so as to maintain said pivot arm out of contact with said carrying arm; and retaining lugs provided on the side walls of one of said pairs and extending into said recess of said pivot connector and engaging and retaining said pivot connector against displacement out of said arms.
Claim 3
Dependent Claim
204 words
In a windshield wiper for automotive vehicles, a combination comprising a carrying arm having at least a portion of U-shaped cross-section, said portion of said carrying arm having a pair of first side walls and a first transverse connecting wall; at least one pivot arm of smaller dimensioned U-shaped cross-section and in part received with clearance in said portion of said carrying arm, said pivot arm having a pair of second side walls eacH inwardly spaced from one of said first walls and a second transverse wall inwardly spaced from said transverse wall; a pivot connector pivotally connecting said pivot arm with said carrying arm and comprising projecting portions projecting beyond the cross-section of said pivot arm by extending outwardly beyond said second side walls and said second transverse wall, said pivot connector having a shaft portion received between said second side walls and having an end projecting beyond said second side walls, so as to maintain said pivot arm out of contact with said carrying arm; and retaining means provided on one of said arms for preventing separation of said arms and said pivot connector, said retaining means being maintained out of contact with the other of said arms by said projecting end.
Claim 4
Dependent Claim
204 words
In a windshield wiper for automotive vehicles, a combination comprising a carrying arm having at least a portion of U-shaped cross-section, said portion of said carrying arm having a pair of first side walls and a first transverse connecting wall; at least one pivot arm of smaller dimensioned U-shaped cross-section and in part received with clearance in said portion of said carrying arm, said pivot arm having a pair of second side walls eacH inwardly spaced from one of said first walls and a second transverse wall inwardly spaced from said transverse wall; a pivot connector pivotally connecting said pivot arm with said carrying arm and comprising projecting portions projecting beyond the cross-section of said pivot arm by extending outwardly beyond said second side walls and said second transverse wall, said pivot connector having a shaft portion received between said second side walls and having an end projecting beyond said second side walls, so as to maintain said pivot arm out of contact with said carrying arm; and retaining means provided on one of said arms for preventing separation of said arms and said pivot connector, said retaining means being maintained out of contact with the other of said arms by said projecting end.
Claim 5
Dependent Claim
189 words
In a windshield wiper for automotive vehicles, a combination comprising a carrying arm having at least a portion of U-shaped cross-section, said portion of said carrying arm having a pair of first side walls and a first transverse connecting wall; at least one pivot arm of smaller dimensioned U-shaped cross-section and in part received with clearance in said portion of said carrying arm, said pivot arm having a pair of second side walls each inwardly spaced from one of said first walls and a second transverse wall inwardly spaced from said first transverse wall; a pivot connector pivotally connecting said pivot arm with said carrying arm and comprising projecting portions projecting beyond the cross-section of said pivot arm by extending outwardly beyond said second side walls and said second transverse wall, so as to maintain said pivot arm out of contact with said carrying arm; and retaining means provided on edge portions of the side walls of one of said arms for preventing separation of said arms and said pivot connector, said retaining means being maintained out of contact with the other of said arms by said projecting portions.
Claim 6
Dependent Claim
189 words
In a windshield wiper for automotive vehicles, a combination comprising a carrying arm having at least a portion of U-shaped cross-section, said portion of said carrying arm having a pair of first side walls and a first transverse connecting wall; at least one pivot arm of smaller dimensioned U-shaped cross-section and in part received with clearance in said portion of said carrying arm, said pivot arm having a pair of second side walls each inwardly spaced from one of said first walls and a second transverse wall inwardly spaced from said first transverse wall; a pivot connector pivotally connecting said pivot arm with said carrying arm and comprising projecting portions projecting beyond the cross-section of said pivot arm by extending outwardly beyond said second side walls and said second transverse wall, so as to maintain said pivot arm out of contact with said carrying arm; and retaining means provided on edge portions of the side walls of one of said arms for preventing separation of said arms and said pivot connector, said retaining means being maintained out of contact with the other of said arms by said projecting portions.
Claim 7
Dependent Claim
23 words
In a windshield wiper as defined in claim 3, said arms being of metallic material, and said pivot connector being of non-metallic material.
Claim 8
Dependent Claim
18 words
In a windshield wiper as defined in claim 4, wherein said non-metallic material is a synthetic plastic material.
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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |