Bolt loading indicator

• US 3,150,557 A
• Filed: 02/05/1962
• Issued: 09/29/1964
• Est. Priority Date: 06/13/1961
• Status: Expired due to Term

• Current Assignee: Arthur Brown John
• Original Assignee: Arthur Brown John
• Inventors: ARTHUR BROWN JOHN
• Application Number:
  US04/171,165
• Time in Patent Office: 967 Days
• US Class Current: 411/9
• CPC Class Codes: E21D 21/0086 Bearing plates
• CPC Class Codes: E21D 21/02 having means for indicating tension screwed connections specially modified for indicating tensile load F16B31/02
• CPC Class Codes: F16B 31/028 with a load-indicating washer or washer assembly
• CPC Class Codes: F16B 43/02 with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
• CPC Class Codes: G01L 5/243 using washers
• CPC Class Codes: Y10S 411/96 Friction

Claims