LandOfFree - US Patents - Listing for Chairs and seats,Back movement resiliently opposed in operating position

Chairs and seats – Back movement resiliently opposed in operating position – Adjustable resistance

Chair control with tilt lock

Chairs and seats – Back movement resiliently opposed in operating position – Back secured to resilient upright bar or rod

Chair fitted with an upholstery member

Chairs and seats – Back movement resiliently opposed in operating position – Back and bottom adjust in a fixed relationship

Chair frame

Chairs and seats – Back movement resiliently opposed in operating position – Back adjusts independent of seat

Chair frame, control mechanism and upholstery

Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously

Chair having a pelvis-hip support adjustable relative to a front

Chairs and seats – Back movement resiliently opposed in operating position

Chair having a resiliently interconnected seat and back

Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously

Chair having an inclinable back rest

Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously

Chair having back shell with selective stiffening

Chairs and seats – Back movement resiliently opposed in operating position

Chair having flexible back support

Chairs and seats – Back movement resiliently opposed in operating position – Back adjusts independent of seat

Chair having novel tilt control mechanism

Chairs and seats – Back movement resiliently opposed in operating position

Chair having seat and back capable of relative tilting

Chairs and seats – Back movement resiliently opposed in operating position – Back adjusts independent of seat

Chair having separable back

Chairs and seats – Back movement resiliently opposed in operating position – Back adjusts independent of seat

Chair having synchronously coupled tiltable seat and back rest

Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously

Chair having tiltable seat back

Chairs and seats – Back movement resiliently opposed in operating position – Constantly oriented during up-and-down movement

Chair height and tilt adjustment mechanisms

Chairs and seats – Back movement resiliently opposed in operating position – Back and bottom adjust in a fixed relationship

Chair improvement structure

Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously

Chair including novel back construction

Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously

Chair mechanism

Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously

Chair mechanism