Cam operated switch assembly
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorGilbert Gould
Life of this patent
Estimating the term…
Abstract
A switch assembly is provided for connecting a battery to an electronic ambly which is part of a sonobuoy which is deployed from an aircraft. A normally-closed micro-switch is connected in a battery circuit and a rotatable cam depresses a lever arm on the micro-switch to open the circuit. A lanyard, having one end attached to an aircraft, is attached to the rotatable cam and launching of the sonobuoy causes the lanyard to rotate the cam and release the lever arm of the micro-switch. A safe pin prevents rotation of the cam until the safe pin is removed prior to launch.
Claims9
A switching system for connecting battery power to an electronic unit comprising,
- a normally-closed switch having an operable lever arm,
- a rotatable cam having a curved surface for depressing said lever arm to open said switch,
- a lanyard,
- means in said cam for releasably attaching one end of said lanyard thereto, and
- means engageable with said cam for preventing rotation of said cam.
A switching system for connecting battery power to an electronic unit comprising,
- a normally-closed switch having an operable lever arm,
- a rotatable cam having a curved surface for depressing said lever arm to open said switch and having a first flat surface adjacent said curved surface,
- a lanyard,
- an open-ended slot in said cam extending from said first flat surface for removably holding one end of said lanyard, and
- a safe pin in abutement with said first flat surface for preventing rotation of said cam, said safe pin closing said slot to prevent disengagement of said lanyard from said slot until said safe pin is removed.
Dependencies are inferred from the claim text.