Remotely controlled mirror assembly and control system therefor

Optical: systems and elements – Mirror – With support

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

359864, 60567, G02B 718

Patent

active

054125120

ABSTRACT:
A mirror assembly for external use on large trucks, tractors, buses, etc. A first reflective surface is pivotably supported with respect to a large, shell-like housing in such a way that the surface is movable at will about two perpendicular axes. A powered hydraulic means is used for selectively rotating the reflective surface to a desired position and normally holding it in a static mode. The hydraulic means includes reservoirs in communication with two hydraulic cylinders, and a plurality of check valves arranged in sets and interposed between the reservoirs and the chambers in the cylinders. The hydraulic fluid is chosen from the group that comprises engine oil, power steering fluid, transmission oil and ethylene glycol. A person may manually grab the reflective surface and apply a torque to it which is sufficient to overcome the biasing resistance of the check valves, so the reflective surface may be manually moved to a desired position (to foster adequate visibility by a driver) even if the hydraulic means has become inoperative. Therefore, a tractor or truck need not be rendered inoperative for road travel just because the power for an external mirror is lost. A second reflective surface is affixed to a plate that supports the first reflective surface, so that the first and second reflective surfaces may be rotated as a unit, or one may be rotated without affecting the other.

REFERENCES:
patent: 3013392 (1961-12-01), Falge et al.
patent: 3375053 (1968-03-01), Ward
patent: 3407601 (1968-10-01), Beck
patent: 3825324 (1974-07-01), Brewington
patent: 4732463 (1988-03-01), Mittelhauser
patent: 4768871 (1988-09-01), Mittelhauser
patent: 4906088 (1990-03-01), Casey
patent: 4918920 (1990-04-01), Droux
patent: 5058385 (1991-10-01), Everett, Jr.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Remotely controlled mirror assembly and control system therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Remotely controlled mirror assembly and control system therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remotely controlled mirror assembly and control system therefor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1142018

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.