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
Method for drug screening and characterization by calcium flux
Method for selective deposition of a semiconductor material
Method of applying a spherical correction to map data for rendering direction-of-travel paths on a wireless communications device
Method for processing power headroom and terminal thereof
Architectural panel with natural fossil spade leaf embossed surface
Magnifying glass
Tube lighting fixture
  Randomly Featured Patents
Parasitic MIM structural spot analysis method for semiconductor device and parasitic MIM structure spot analysis method for silicon semiconductor device
Double lid for a container
Variable valve timing controller for internal combustion engine
Dual paraboloid reflector and dual ellipsoid reflector systems with optimized magnification
Kimchi refrigerator
Cross-connecting system for making line connections between high-speed lines and low-speed lines and between high-speed lines and capable of detecting a line-connection error
Method for the secure interpretation of programs in electronic devices
Bottle brush/glass cleaner
Vacuum evaporator
Dumbbell retail/storage rack