Flexible hinge device

• US 4,660,418 A
• Filed: 09/17/1984
• Issued: 04/28/1987
• Est. Priority Date: 09/17/1983
• Status: Expired due to Fees

• Current Assignee: International Standard Electric Corporation (ITT, Inc.)
• Original Assignee: International Standard Electric Corporation (ITT, Inc.)
• Inventors: Wilson, David, Greenwood, John C.
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/651,553
• Time in Patent Office: 953 Days
• Field of Search: 73/514, 73/517 R, 73/432 A, 73/652, 73/654, 73/35, 16/225, 16/DIG. 13
• US Class Current: 16/225
• CPC Class Codes: E05D 1/02 made of one piece
• CPC Class Codes: G01P 1/00 Details of instruments

Abstract

A flexible hinge device comprises a laminar silicon body having a groove portion etched away to define a thin flexible strip joining two rigid end portions. The silicon forming the hinge is usually of a single crystal structure. Break-off supports may be provided to support the structure prior to use.

Claims

1. A unitary flexible hinge device comprising a laminar body of single crystal silicon having a hinge groove etched therein extending in an uninterrupted straight line manner across said body between a pair of opposite edges thereof, dividing said body into two rigid body portions on opposite sides of said hinge groove, said hinge groove having a depth forming a substantially thin flat hinge groove bottom connecting said two rigid body portions, said hinge groove bottom being flexible along the entire length of said groove, said body includes two additional grooves each extending transverse to said hinge groove in an interrupted straight line manner across a respective one of said pair of body portions between a second pair of opposite edges thereof forming a pair of support portions each extending across said hinge groove rigidly connecting said two body portions together, each said support portion being removable from said body portions at said two additional grooves.