Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Chair back height adjuster










Image Number 4 for United States Patent #5725278.

Disclosed is a device for positionally adjusting and releasably locking a chair backrest in any of a plurality of positions on a seat support member between two extreme positions. The device includes a first bracket adapted to be rigidly secured to the backrest and a second bracket adapted to be rigidly secured to the seat support member and slidably receiving the first bracket for sliding movement between two extreme, longitudinally spaced, first and second positions. A locking mechanism is provided for releasably locking the second bracket to the first bracket, the locking mechanism comprising a longitudinal array of lock stop members on the second bracket confronting a lock element secured to the first bracket, the lock stop members each having a locking surface. At least one longitudinal guide track is on the first bracket and defines a first longitudinal path and a second longitudinal path, the guide track having respective ends defining the first and second extreme positions and providing access points at such position between the paths to permit movement of the path tracking elements from one path to the other path. The lock element has a lock tongue for locking association with a locking surface of a selected one of the lock stop members. The lock element further has a path tracking element for sequential engagement with the first and second paths, wherein, when the path tracking element is in engagement with the first path, the lock element is forced into engagement with a selected one of the lock stop members and when the path tracking element is in engagement with the second path, the lock element is held out of engagement from all lock stop members.








 
 
  Recently Added Patents
System and method to assess and report the health of landing gear related components
Targeted gene deletions for polysaccharide slime formers
Flexible lighting devices
Switching device, switch control method, and storage system
Systems, methods, and apparatus to determine physical location and routing within a field of low power beacons
Nutritional supplement method
Assembly for providing an aligned stack of two or more modules and a lithography system or a microscopy system comprising such an assembly
  Randomly Featured Patents
Communication device and method for transmitting through the use of accumulation of capacity tokens
Cedar fish baking plank
Crossbar with return net for scalable self-routing non-blocking message switching and routing system
Method and apparatus that carries out self-organizing of internal states of a state transition prediction model, and obtains a maximum likelihood sequence
Quick paging channel detection with signal to noise ratio dependent thresholds
Tearing-proof method for writing data in a nonvolatile memory
Charging system and vehicle and charge controller for the charging system
Digital signal processing circuit for digital camera
Drag through electro-deposition system
Slit exposure device