US3837036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for wiping exposed convex surfaces of lenses on head lights of automotive vehicles or the like
Assignee: Robert Bosch GmbH
•
Filing: 1972-04-27
•
Granted: 1974-09-24
•
Expires: 1992-04-27
Abstract
Abstract Apparatus for wiping the exposed convex surface on the lens of a head light in an automobile has a lever which is oscillatable about an axis passing through the center of curvature of the convex surface. The lever is pivoted to an arm which is connected to the central portion of an elongated deformable wiper blade. When the lever is oscillated by a motor, the arm moves in parallelism with itself and moves the blade sideways so that the latter sweeps the major part of the convex surface. The end portions of the blade bear against stops provided on the head light when the blade leaves a central position and approaches either of its two end positions whereby the arm flexes the blade and maintains an elastic lip of the blade in full contact with the convex surface. The axis of the lever is coplanar with the blade when the latter assumes its central position. A torsion spring reacts against the lever and biases the arm in a direction to urge the median portion of the blade against the convex surface.
Inventors
- 👤 K Burger
- 👤 Clewe M Hoffmann
- 👤 W Schaper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:13
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/38; B60S1/34; B60S1/3402; B60S1/56; B60S1/60; G; G02; G02B; G02B27/00; G02B27/0006; B60S2001/3812; B60S2001/3817; B60S2001/382; B60S2001/3827; B60S2001/3836
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
126 words
Wiping apparatus for use with windows having a curved periphery, particularly lenses on motor-vehicle lamps, comprising an elongated elastically deformable wiper blade having spaced ends and a lip adapted to contact a surface of a window to be wiped; a mounting arm engaging said wiper blade intermediate said ends and holding it in position adjacent said surface; a drive shaft connected with said mounting arm for moving the same and said wiper blade in alternately reversed directions over said surface; and abutments provided in the region of said periphery and positioned for engagement with the respective ends of said wiper blade as the latter approaches said periphery, so as to cause elastic deformation of said wiper blade into substantial conformance with the curvature of the periphery.
Claim 2
Dependent Claim
126 words
Wiping apparatus for use with windows having a curved periphery, particularly lenses on motor-vehicle lamps, comprising an elongated elastically deformable wiper blade having spaced ends and a lip adapted to contact a surface of a window to be wiped; a mounting arm engaging said wiper blade intermediate said ends and holding it in position adjacent said surface; a drive shaft connected with said mounting arm for moving the same and said wiper blade in alternately reversed directions over said surface; and abutments provided in the region of said periphery and positioned for engagement with the respective ends of said wiper blade as the latter approaches said periphery, so as to cause elastic deformation of said wiper blade into substantial conformance with the curvature of the periphery.
Claim 3
Dependent Claim
25 words
Wiping apparatus as defined in claim 1, said abutments comprising two pairs of abutments, each pair being adapted to cooperate with one of said ends.
Claim 4
Dependent Claim
33 words
Wiping apparatus as defined in claim 1, said abutments comprising at least two abutments for each of said ends and spaced from one another in the direction of movement of said wiper blade.
Claim 5
Dependent Claim
31 words
Wiping apparatus as defined in claim 1, said mounting arm having a configuration corresponding at least substantially to the contour of said periphery in the contact region of said wiper blade.
Claim 6
Dependent Claim
22 words
Wiping apparatus as defined in claim 1; and further comprising biasing means for biasing said wiper blade in direction towards said surface.
Claim 7
Dependent Claim
26 words
Apparatus as defined in claim 1, wherein each of said stop means constitutes part of the body whose exposed surface is being wiped by said blade.
Claim 8
Dependent Claim
113 words
Apparatus as defined in claim 1, further comprising at least one second deformable elongated wiper blaDe located in front of a second convex surface to be wiped, a second arm connected to said second blade and arranged to maintain the latter in contact with the respective surface, second carrier means oscillatable about a second predetermined axis and connected with said second arm to move said second arm and said second blade sideways back and forth along the respective surface, and connecting means for connecting said first mentioned and second carrier means so that said second carrier means oscillates in response to oscillatory movement of and in synchronism with said first mentioned carrier means.
Claim 9
Dependent Claim
39 words
Apparatus as defined in claim 1, wherein said drive means comprises a motor having a rotary output element, a crank arm secured to said output element, and link means articulately connected with said carrier means and said crank 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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |