Explosion pressure responsive switch

• US 3,275,770 A
• Filed: 02/26/1965
• Issued: 09/27/1966
• Est. Priority Date: 02/26/1965
• Status: Expired due to Term

• Current Assignee: Lauren G. Kilmer, Richard K. Shearman
• Original Assignee: Lauren G. Kilmer, Richard K. Shearman
• Inventors: Kilmer, Lauren G., Shearman, Richard K.
• Application Number:
  US04/435,450
• Time in Patent Office: 578 Days
• US Class Current: 200/82.00R
• CPC Class Codes: H01H 29/00 Switches having at least one liquid contact solid contacts wetted or soaked with mercury H01H1/08
• CPC Class Codes: H01H 29/006 Self interrupters, e.g. with periodic or other repetitive opening and closing of contacts
• CPC Class Codes: H01H 35/24 Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow wherein the change of pressure is caused by change of temperature H01H37/36

Claims

1. A SWITCH COMPRISING A HOLLOW BODY, PLATE MEANS SEALING THE TOP OF THE HOLLOW OF SAID BODY, THE HOLLOW OF SAID BODY HAVING A SIDEWALL, A SPLIT CONE ELECTRODE MEANS INCLUDING TWO ELECTRICALLY-CONDUCTIVE ELEMENTS SUPPORTED IN THE HOLLOW OF SAID BODY BENEATH SAID PLATE, SAID ELEMENTS BEING SPACED A SMALL DISTANCE APART, MEANS FOR SEALING THE BOTTOM OF SAID HOLLOW INCLUDING A PISTON ARRANGED AT THE BOTTOM OF SAID HOLLOW BODY, SAID PISTON HAVING LIMITED AXIAL MOVEMENT IN THE HOLLOW OF SAID BODY, A SMALL BODY OF MERCURY NORMALLY RESTING ON SAID PISTON MEANS BENEATH SAID PLATE, AND DEFLECTOR MEANS ADJACENT SAID ELECTRODE MEANS FOR DEFLECTING MERCURY WHICH STRIKES THE SAME SUBSTANTIALLY AXIALLY OF SAID BODY IN THE DIRECTION TOWARD SAID ELECTRODE MEANS, WHEREBY WHEN A SUDDEN FORCE IS APPLIED AT THE BOTTOM OF SAID HOLLOW BODY SAID PISTON MEANS IS SUDDENLY RAISED TO THROW SAID MERCURY UPWARD WHERE IT IS DEFLECTED TO PASS BETWEEN SAID TWO ELEMENTS AND MOMENTARILY COMPLETE A CIRCUIT THROUGH SAID ELECTRODE MEANS.