Electricity: circuit makers and breakers – Foot operated
Patent
1997-05-09
2000-01-11
Friedhofer, Michael
Electricity: circuit makers and breakers
Foot operated
74512, H01H 314
Patent
active
060138823
ABSTRACT:
A dental patient's chair which is fully and completely adjustable which includes a foot control system that eliminates the need to manipulate any hand-operated control knobs or levers. The dental patient's chair includes a linkage assembly which allows the seat to pivot and move in the same manner as the human body when the human body articulates about the complex pivot created at the pelvic bone, the upper legs, and the lower part of the backbone. The dental patient's chair allows the patient's body to remain in the same position relative to the backrest and the seat of the patient's chair as the chair is articulated in a variety of positions.
REFERENCES:
patent: 2662582 (1953-12-01), Lorenz
patent: 2671268 (1954-03-01), Crawford
patent: 2850078 (1958-09-01), Lorenz
patent: 3020368 (1962-02-01), Nielsen
patent: 3056629 (1962-10-01), Fletcher
patent: 3578379 (1971-05-01), Taylor
patent: 3980848 (1976-09-01), Schulz et al.
patent: 4505514 (1985-03-01), Stockl et al.
patent: 5131717 (1992-07-01), Kaminiski et al.
patent: 5190349 (1993-03-01), Austin
patent: 5214360 (1993-05-01), Gonser et al.
patent: 5315726 (1994-05-01), Borenstein
patent: 5351676 (1994-10-01), Putman
patent: 5423231 (1995-06-01), Helfrich et al.
patent: 5568859 (1996-10-01), Levy et al.
Dentech Products, Inc.
Friedhofer Michael
LandOfFree
Dental patient's chair does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dental patient's chair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dental patient's chair will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1464032