US3968537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiping blade device for truck rear view mirrors
Assignee: Lawrence Peska Associates Inc
•
Filing: 1974-09-25
•
Granted: 1976-07-13
•
Expires: 1994-09-25
Abstract
Abstract A motorized wiping device for cleaning rear and side view mirrors of trucks, buses, trailers, and other heavy vehicles, in which the mirror is mounted externally on the vehicle. Such mirrors being normally wide and high, a rain or snow storm or fog can render them unusable, and the invention is intended to wipe them off as needed. A motor in a housing drives a wiper blade movable over the mirror, with a reciprocating coupling linkage from the motor to the wiper blade, and either a separate battery may be in the housing, or direct connection be made to the vehicle battery controlled by the operator.
Inventors
- 👤 John Joseph Wagenhofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:39
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/32; B60S1/34; B60S1/3402; B60S1/3404; B60R; B60R1/00; B60R1/02; B60R1/06; B60R1/0602
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
371 words
A detachably mounted wiping device for cleaning off rear view and side view mirrors of vehicles in which the mirrors are supported outwardly from the vehicles and are of substantial surface area expanse, said device comprising wiper support stem means, for carrying a wiper blade means, main wiper housing means, motor means in said main wiper housing means for driving said wiper support stem means, reciprocating coupling means for connecting said motor means to said wiper support stem means for reciprocally moving said wiper blade means back and forth in a horizontal direction over said mirrors, said main wiper housing means comprising a top wall, a bottom wall, two end walls, and two side walls defining an enclosed main housing chamber for blocking entrance of rain and snow into said chamber, motor mounting means in said chamber for supporting said motor means, said chamber having a narrow elongated opening formed in said bottom wall thereof for extension therethrough of said wiper support stem means, said motor means comprising rotatable drive shaft means, cam drive wheel means carried by said drive shaft means for rotation therewith, said reciprocating coupling means comprising wrist pin means carried on said cam drive wheel means for rotation therewith, sliding bar means carried by said wiper blade stem means, connecting rod means coupling said wrist pin means with said sliding bar means for causing said wiper blade stem means to undergo reciprocal wiping motion upon rotation of said drive shaft of said motor means, guide plate means supported in said main chamber and mounted parallel to said bottom wall said sliding bar means being horizontally guided within the space between said guide plate, said bottom wall, and said slide walls to provide reciprocating movement of the stem and wiper blade in a direction parallel to the surface of said mirror and for maintaining said blade in engagement with said mirror surface, channel rail means carried by said bottom wall of said housing means for engaging an upper top edge margin portion of said mirror, and releasable clamp means on said channel rail means for holding said mirror in adjustable relationship to said housing means for providing lateral position adjustment of said housing with respect to said mirror.
Claim 2
Dependent Claim
371 words
A detachably mounted wiping device for cleaning off rear view and side view mirrors of vehicles in which the mirrors are supported outwardly from the vehicles and are of substantial surface area expanse, said device comprising wiper support stem means, for carrying a wiper blade means, main wiper housing means, motor means in said main wiper housing means for driving said wiper support stem means, reciprocating coupling means for connecting said motor means to said wiper support stem means for reciprocally moving said wiper blade means back and forth in a horizontal direction over said mirrors, said main wiper housing means comprising a top wall, a bottom wall, two end walls, and two side walls defining an enclosed main housing chamber for blocking entrance of rain and snow into said chamber, motor mounting means in said chamber for supporting said motor means, said chamber having a narrow elongated opening formed in said bottom wall thereof for extension therethrough of said wiper support stem means, said motor means comprising rotatable drive shaft means, cam drive wheel means carried by said drive shaft means for rotation therewith, said reciprocating coupling means comprising wrist pin means carried on said cam drive wheel means for rotation therewith, sliding bar means carried by said wiper blade stem means, connecting rod means coupling said wrist pin means with said sliding bar means for causing said wiper blade stem means to undergo reciprocal wiping motion upon rotation of said drive shaft of said motor means, guide plate means supported in said main chamber and mounted parallel to said bottom wall said sliding bar means being horizontally guided within the space between said guide plate, said bottom wall, and said slide walls to provide reciprocating movement of the stem and wiper blade in a direction parallel to the surface of said mirror and for maintaining said blade in engagement with said mirror surface, channel rail means carried by said bottom wall of said housing means for engaging an upper top edge margin portion of said mirror, and releasable clamp means on said channel rail means for holding said mirror in adjustable relationship to said housing means for providing lateral position adjustment of said housing with respect to said mirror.
Claim 3
Dependent Claim
26 words
The construction of claim 1, and wherein said clamp means comprises a plurality of clamps and wing screws and nuts for manual clamping and adjustment action.
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) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |