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Class Information
Number: 248/421
Name: Supports > Stand > Adjustable vertically > Toggle or link
Description: Device wherein the adjusting means include a plurality of pivoted bars connected to the support surface and movable to raise and lower the surface.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
4387876 Constant force generator mechanism and adjustable seat constructed therewith Jun. 14, 1983
4382573 Vehicle seat support with incorporated device for damping longitudinal acceleration May. 10, 1983
4375900 Control system of and device for memorizing, reading and reproducing the position of material to be controlled Mar. 8, 1983
4374497 Leveling table Feb. 22, 1983
4344594 Lift mechanism for dental chair Aug. 17, 1982
4328992 Adjustable foot stool May. 11, 1982
4312491 Device for the resilient suspension of vehicle seats Jan. 26, 1982
4309015 Vertical position adjuster for seats, particularly for motor vehicle seats Jan. 5, 1982
4296694 Guitarist's foot-rest Oct. 27, 1981
4273306 Adjustable-height support apparatus Jun. 16, 1981
4270723 Pantograph mechanism Jun. 2, 1981
4222543 Vertical and angular adjustment device for vehicle seats Sep. 16, 1980
4209158 Seat adjuster Jun. 24, 1980
4194716 Air suspension driver's seat Mar. 25, 1980
4183483 Translating mechanism Jan. 15, 1980
4173372 Dental chair Nov. 6, 1979
4170182 Folding table structure Oct. 9, 1979
4159095 Seat height adjustment mechanism Jun. 26, 1979
4151973 Spring controlled shock absorbing seat May. 1, 1979
4128225 Constant torque adjustable seat Dec. 5, 1978
4128152 Ratchet transmission Dec. 5, 1978
4126096 System of support legs for a table, a seat or like object resting upon the floor by means of a set of legs Nov. 21, 1978
4125242 Spring mounted seat with height adjustment Nov. 14, 1978
4121802 Adjustable seat with constant torque Oct. 24, 1978
4116548 Adjustable support Sep. 26, 1978
4103858 Seat support assembly for a recreational vehicle Aug. 1, 1978
4092009 Height adjuster for a vehicle seat May. 30, 1978
4089147 Module having collapsible properties May. 16, 1978
4081051 Adjustable support for reversible seat of a dual-purpose vehicle Mar. 28, 1978
4073240 Portable animal hospital table Feb. 14, 1978
4072287 Seat supporting assembly of the resiliently loaded type Feb. 7, 1978
4032103 Adjustable stand Jun. 28, 1977
4029283 Seat supporting assembly Jun. 14, 1977
4029284 Seat support assembly for a recreational vehicle Jun. 14, 1977
4025107 Collapsible spoon-bottom chair May. 24, 1977
4019778 Dental patients' chair with a parallelogram supporting arm Apr. 26, 1977
4005840 Adjustable arm support Feb. 1, 1977
3994469 Seat suspension including improved damping means Nov. 30, 1976
3984078 Vehicle seat Oct. 5, 1976
3982718 Operatory chair operating mechanism Sep. 28, 1976
3964725 Dental chair Jun. 22, 1976

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