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
Manufacturing method for semiconductor device carrier and semiconductor package using the same
Image forming apparatus capable of timely starting different image formation mode
PC secure video path
Method and apparatus for band switching in wireless local access network
Smooth silicon-containing films
Methods and system for providing drug pricing information from multiple pharmacy benefit managers (PBMs)
Reserving a time block in a calendar application to account for a travel time between geographic locations of appointments
  Randomly Featured Patents
Hub of an axial fan
Liquid crystal display device
Methods of charging superconducting materials
Basketball coaching system
Web feed section
Saddle adjusting device
Quinuclidyl- and tropanyl-pyridyl ethers as 5-HT.sub.3 receptor antagonists
Manual pump
Self-closing gas pipes and pipe joints
Method and apparatus to determine the size and velocity of particles using light scatter detection from confocal beams