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 – Back and bottom adjust in a fixed relationship

Steel spring with dwell for chairs

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

Steel wire chair with springs

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

Stenographer's chair

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

Structure for attaching spring

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

Structure for connecting members

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

Support for tilting or synchronized chairs

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

Support member

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

Support-and adjusting device for seat and backrest on a work cha

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

Suspension arrangement for a tilting chair

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

Suspension mechanism for connecting chair backs and seats to a p

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

Suspension mechanism for connecting chair backs and seats to a p

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

Suspension mechanism for connecting chair backs and seats to a p

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

Suspension seats for vehicles

Chairs and seats – Back movement resiliently opposed in operating position

Swivel arrangement for a chair seat

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

Swivel chair

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

Swivel chair

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

Swivel chair with adjustable back rest

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

Swivel tilt mechanism for chair

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

Synchronisation mechanism for chairs or armchairs