The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 1978
Filed:
Mar. 09, 1976
Applicant:
Inventor:
Peter Ronald Jackman, Basingstoke, EN;
Assignee:
Inertia Switch Limited, , UK;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; G01P / ;
U.S. Cl.
CPC ...
200 / ; 73492 ; 137 38 ; 200 615 ;
Abstract
A seismonastic control apparatus has a ball mounted in a concavity for unobstructed movement into contact with a displaceable disc which actuates a two-mode control device on predetermined tilting or shock loading of the apparatus. To increase the kinetic energy of the ball and thus facilitate displacement of the disc, the seat is formed with a circular region at which the inclination of the seat to the central axis of the apparatus increases. As the ball crosses this region it is accelerated more rapidly because its path becomes more closely aligned with the resultant force acting on the ball.