Chair height adjustment mechanism

Details Chair height adjustment mechanism Chair height adjustment mechanism

1992-06-02

1993-08-10

Ramirez, Ramon O.

Supports

Stand

Standard type

248422, F16M 1100

Patent

active

052341879

ABSTRACT:
An adjustment mechanism for adjusting the height of a chair seat, table top or other item includes telescoping outer, intermediate and inner tubes. The outer tube is attached to a base. The inner tube is attached to a chair seat or other load. A drive extends the telescoping tubes to adjust the height of the load. In one form, the drive includes a flexible, substantially nonelastic tape having an end fixed to the inner tube and an end fixed to the outer tube. The tape engages or rides over a sheave supported on the intermediate tube. In another form, the drive includes a pair of racks and a pinion. A piston cylinder actuator is disposed within the inner tube. The actuator includes an extensible rod which causes relative movement between the inner and intermediate tubes and extension of the intermediate tube relative to the base through the drive tape or rack and pinion.

REFERENCES:
patent: 367840 (1887-08-01), Parker
patent: 831994 (1906-09-01), Rudman
patent: 1379943 (1921-05-01), Stevens
patent: 1725329 (1929-08-01), Blandford
patent: 1888136 (1932-11-01), McDermott
patent: 3143332 (1964-08-01), Watlington
patent: 3339873 (1967-09-01), Hale
patent: 3381926 (1968-05-01), Fritz et al.
patent: 3675597 (1972-07-01), Oddsen et al.
patent: 3711054 (1973-01-01), Bauer
patent: 3777617 (1973-12-01), Okiyama
patent: 3788587 (1974-01-01), Stemmler
patent: 3861740 (1975-01-01), Tajima et al.
patent: 3891270 (1975-06-01), Crossman et al.
patent: 3921952 (1975-11-01), Wirges
patent: 4072288 (1978-02-01), Wirges et al.
patent: 4113220 (1978-09-01), Godwin et al.
patent: 4139175 (1979-02-01), Bauer
patent: 4183689 (1980-01-01), Wirges et al.
patent: 4220307 (1980-09-01), Hale
patent: 4245826 (1981-01-01), Wirges
patent: 4247068 (1981-01-01), Edelson et al.
patent: 4415135 (1983-11-01), French
patent: 4445671 (1984-05-01), Reuschenbach et al.
patent: 4465266 (1984-08-01), Hale
patent: 4485996 (1984-12-01), Beukema et al.
patent: 4580749 (1986-04-01), Howard
patent: 4592590 (1986-05-01), Slaats et al.
patent: 4593951 (1986-06-01), Slaats et al.
patent: 4595237 (1986-06-01), Nelsen
patent: 4613106 (1986-09-01), Tornero
patent: 4621868 (1986-11-01), Slaats et al.
patent: 4627602 (1986-12-01), Spork
patent: 4651652 (1987-03-01), Wyckoff
patent: 4673155 (1987-06-01), Binder
patent: 4692057 (1987-09-01), Lauderbach
patent: 4709894 (1987-12-01), Knoblock et al.
patent: 4720068 (1988-01-01), Tornero
patent: 4756496 (1988-07-01), Hosan et al.
patent: 4807836 (1989-02-01), Price et al.
patent: 4844392 (1989-07-01), Bauer et al.
patent: 4899969 (1990-02-01), Bauer et al.
patent: 4940202 (1990-07-01), Hosan et al.
patent: 4969619 (1990-11-01), Bauer et al.
patent: 4979718 (1990-12-01), Bauer et al.
patent: 4997150 (1991-03-01), Mardollo
patent: 5012996 (1991-05-01), Poertzgen et al.
patent: 5078351 (1992-01-01), Gualtieri
patent: 5114109 (1992-05-01), Fitz et al.
Lift-O-Mat Literature.

Affiliated with

Also associated with

Rating

Chair height adjustment mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chair height adjustment mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chair height adjustment mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1720483