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
Optical article comprising a temporary anti-fogging coating with improved durability
Denial of service (DoS) attack prevention through random access channel resource reallocation
Systems and methods for sorting particles
Predicting popularity of electronic publications
Voltage detection apparatus and combination circuit
System and method for optimizing utilization of inventory space for dispensable articles
Signal processing apparatus and methods
  Randomly Featured Patents
Complex curved surface creation method
Adjustable ferromagnetic coated conductor thermal surgical tool
Coating apparatus
Method and system for providing secure user access to public or private telephone and internet systems
Combustion apparatus for high velocity thermal spraying
Stable compositions
Method and apparatus for providing speech-driven routing between spoken language applications
Tactical wire-cutter system for helicopters
Intracardiovascular access (ICVATM) system
Process for the transesterification of fat and/or oil by means of alcoholysis