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US4925289A Expired / Lapsed US ⏱️ 0.0 years remaining

Rear view mirror adjustable by a single motor

Assignee: Individual
•
Filing: 1989-10-03
•
Granted: 1990-05-15
•
Expires: 2009-10-03
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Abstract

Abstract A remote-controlled rear-view mirror assembly is movably supported in a housing and can be adjusted by an electric motor from a remote point. An electric motor is mounted in the mirror housing and has an electrically reversibly direction of rotation and stepdown gearing. The drive shaft is connected to a crank. A pin connected to the crank executes circular motion about the centerline axis of the drive shaft when the motor is activated. The pin slides in an endless groove cut in the face of a spherically shaped cam. The spherically shaped cam and mirror are rigidly attached at opposite ends of a common shaft. The common shaft has a spherical ball located at a point between the two ends. The spherical ball moves within a spherical cup which is attached to the mirror housing. The movement of the pin in the groove causes the mirror to pivot about the center of the spherical ball joint, giving the mirror its necessary range of motion. Extraneous rotational motion of the mirror about the centerline axis of the common shaft is prevented by use of an anti-rotation tag and tag rest.

Inventors

  • 👤 William L. Cleghorn
  • 👤 Charles H. Cleghorn

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 01:20
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/06; B60R1/062; B60R1/07; B60R1/072

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 76 words
An adjustable rear-view mirror comprising: (a) a shaft means medially supported for universal rotation; (b) a cam supported by one end of said shaft means having an outwardly directed convex surface inscribed with a curvilinear endless groove; (c) a mirror supported by the other end of said shaft means; (d) a tongue drivable in a circular path, said tongue received by said endless groove; and (e) drive means to drive said tongue in said circular path.
Claim 2
Dependent Claim 76 words
An adjustable rear-view mirror comprising: (a) a shaft means medially supported for universal rotation; (b) a cam supported by one end of said shaft means having an outwardly directed convex surface inscribed with a curvilinear endless groove; (c) a mirror supported by the other end of said shaft means; (d) a tongue drivable in a circular path, said tongue received by said endless groove; and (e) drive means to drive said tongue in said circular path.
Claim 3
Dependent Claim 20 words
The adjustable rear-view mirror of claim 1 wherein said curvilinear endless groove comprises a series of generally concentric oval shapes.
Claim 4
Dependent Claim 33 words
The adjustable rear-view mirror of claim 2 comprising a tag extending radially from said shaft means and resilient means to restrain said tag in order to limit the rotation of said shaft means.
Claim 5
Dependent Claim 45 words
The adjustable rear-view mirror assembly of claim 3 wherein said drive means to drive said tongue in said circular path comprises: (a) an electric motor operatively connected to a crank arm; and (b) a base supporting said tongue; said crank arm rotatably receiving said base.
Claim 6
Dependent Claim 39 words
The adjustable rear-view mirror assembly of claim 4 wherein said means for supporting said shaft means for universal rotation comprise: (a) a spherical bearing medially located on said shaft means; and (b) stalk means universally supporting said spherical bearing.
Claim 7
Dependent Claim 25 words
The adjustable rear-view mirror assembly of claim 5 wherein said resilient means to restrain said tag comprise a resilient fork extending from said stalk means.

References Cited (Backward Citations)

US3565515A Cited
US3628862A Cited
US3711179A Cited
JPS5222243A Cited
JPS5326037A Cited
US4474428A Cited
DE3103908A1 Cited
SU1034027A2 Cited
JPS59167346A Cited
US4540252A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-05-14 1993-11-13 1994-05-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-05-14 1997-11-13 1998-05-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-05-14 2001-11-13 2002-05-15 $7700.00 Window Closed / Lapsed

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