# US 2013/0152811 A1 · Impulse-Based Compact Mechanical G-Switch With Modular Design > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0152811 A1 - Document ID: US20130152811A1 - Status: Published application - Kind: A1 - Application number: 13/770,989 - Filed: 2013-02-19 - Published: 2013-06-20 - Earliest claimed: 2009-09-01 - Assignees: Omnitek Partners LLC - Inventors: Jahangir S. Rastegar - Web page: https://patentgrep.com/patent/US20130152811A1 ## CPC - H01H 35/06: Switches operated by change of speed (operated by change of fluid flow H01H35/24) - F42C 11/008: {Power generation in electric fuzes (F42C11/02, F42C11/04 and F42C15/295 take precedence)} - F42C 15/24: wherein the safety or arming action is effected by inertia means (F42C15/196, F42C15/20 take precedence) - F42C 19/06: Electric contact parts specially adapted for use with electric fuzes {(switches operated by change of speed H01H35/06; switches operated by change of acceleration, e.g. shock or vibration, inertia switches H01H35/14; fluid-pressure-operated switches H01H35/24)} - H01H 35/006: {Switches operated by mechanical overload condition, e.g. transmitted force or torque becoming too high} - H01H 35/14: Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch {(wherein the liquid constitutes a contact of the switch H01H29/002)} - H01H 35/145: {operated by a particular acceleration-time function} - H01M 6/38: by mechanical means - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) - F42C: AMMUNITION FUZES (blasting cartridge initiators F42B3/10; chemical aspects C06C); ARMING OR SAFETY MEANS THEREFOR (filling fuzes F42B33/02; fitting or extracting primers in or from fuzes F42B33/04; containers for fuzes F42B39/30) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY ## Abstract A G-switch including: a base and posts, the posts having a hole; a locking ball with a portion disposed in the holes; a striker mass movably disposed relative to the posts and having a concave portion, wherein a portion of the locking balls is disposed the concave portion; a collar movable relative to the posts; a biasing element for biasing the collar in a position which retains the locking balls within the concave portions, the biasing element permitting movement of the collar to a position in which the locking balls are released from the concave portions to release the striker mass upon a predetermined acceleration profile; and a member on the striker mass and first and second electrically conductive contacts on a portion of the body, the first member opening or closing an electrical circuit between the first and second contacts upon release of the striker mass. ## Claims ### Claim 1 A G-switch comprising: a body having a base and two or more posts extending from the base, each of the two or more posts having a hole; at least one locking ball corresponding to each of the two or more posts, wherein a first portion of the locking balls are disposed in the hole; a striker mass movably disposed relative to the two or more posts and having a surface corresponding to each of the two or more posts, the movement of the striker mass being guided by the surfaces, the striker mass further having a concave portion corresponding to each of the locking balls, wherein a second portion of each locking ball is disposed in a corresponding concave portion for retaining the striker mass relative to the two or more posts; a collar movable relative to the two or more posts; a biasing element for biasing the collar in a first position which retains the locking balls within the concave portions, the biasing element permitting movement of the collar to a second position in which the locking balls can be released from the concave portions to release the striker mass relative to the two or more posts upon a predetermined acceleration profile experienced by the body; a member disposed on the striker mass; and first and second electrically conductive contacts disposed on a portion of the body; wherein the first member one of opening or closing an electrical circuit between the first and second contacts upon release of the striker mass. ### Claim 2 (depends on 1) The G-switch of claim 1, wherein the two or more posts comprise three posts. ### Claim 3 (depends on 1) The G-switch of claim 1, wherein the portion of the body comprises the base, the base having a non-conductive material, the first and second contacts being disposed in the non-conductive material. ### Claim 4 (depends on 3) The G-switch of claim 3, wherein each of the first and second contacts comprise a contact head and an extended end connected to the contact head, the extended end being disposed in the non-conductive material. ### Claim 5 (depends on 3) The G-switch of claim 3, wherein the contact head is a flexible member. ### Claim 6 (depends on 1) The G-switch of claim 1, wherein the member comprises an electrically conductive third contact to close the electrical circuit between the first and second contacts upon release of the striker mass. ### Claim 7 (depends on 6) The G-switch of claim 6, wherein the third contact is a flexible member. ### Claim 8 (depends on 6) The G-switch of claim 6, further comprising a contact biasing element for biasing the third contact to stay in electrical contact with the first and second contacts after release of the striker mass. ### Claim 9 (depends on 1) The G-switch of claim 1, wherein the member comprises an electrically non-conductive member to open the electrical circuit between the first and second contacts upon release of the striker mass. ### Claim 10 (depends on 9) The G-switch of claim 9, further comprising a contact biasing element for biasing the electrically non-conductive member to maintain the first and second contacts open after release of the striker mass. ### Claim 11 (depends on 1) The G-switch of claim 1, further comprising a striker mass biasing element for biasing the striker mass away from the second and third contacts to one of open or close the electrical circuit upon release of the striker mass. ### Claim 12 (depends on 6) The G-switch of claim 6, wherein the striker mass comprises a non-conductive material body and the electrically conductive third contact is insert molded into the non-conductive material body. ### Claim 13 (depends on 9) The G-switch of claim 9, wherein the striker mass comprises a non-conductive material body and the electrically non-conductive member is integrally formed with the non-conductive material body.