Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Deformable switch keyboard










Image Number 2 for United States Patent #4375585.

A deformable switch keyboard assembly with a flexible unitary top member, a compressible intermediate switch assembly layer and a bottom member providing mechanical support for the intermediate assembly and mechanical isolation for the switching function.The top member has a plurality of switch site defining regions extending in a first direction and located in a predetermined array to define the keyboard. The intermediate switch assembly has a plurality of switch sites each underlying a different one of the top member projections. The bottom member has first and second sets of projections extending toward the top member, each of the first set of projections underlying a different one of the switch sites and providing a compression contact beneath the intermediate switch assembly when the corresponding top member region is actuated to advance in the first direction. Each of the second set of projections is located intermediate different adjacent ones of the switch sites and is longer than any of the first set of projections in order to provide mechanical isolation between an actuated switch site and the remainder of the switch sites.








 
 
  Recently Added Patents
Securing information by hiding identity on a computing device
System and method for backup communication over ethernet
Architecture, system and method for testing resistive type memory
Transducer displacement protection
Prevention and treatment of osteoarthritis
Apoptosis inductor extracted from potato, potato foodstuff containing the inductor, and processed product thereof
Controller with screen
  Randomly Featured Patents
Method of producing a photovoltaic device
Exhaust gas extraction system for an internal combustion engine
Body fluid collection device
Method of propagation delay testing a level sensitive array logic system
Use of a peptide that interacts with .alpha.v.beta.3 integrin of endothelial cell
Method and system for distributing objects over a network
Silicon germanium and germanium multigate and nanowire structures for logic and multilevel memory applications
Ultrawide-band communication system and method
Polymer comprising terminal sulfonic acid group, and polymer electrolyte and fuel cell using the same
Servosteering, especially for motor vehicles