# US 4,393,284 A · Direct-current electric switch > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,393,284 A - Document ID: US4393284A - Status: Granted - Kind: A - Application number: 06/322,755 - Filed: 1981-11-19 - Granted: 1983-07-12 - Earliest claimed: 1980-11-21 - Assignees: Etablissements Fernand Berchet - Inventors: Marc Rivollet; Pierre Monzer - Web page: https://patentgrep.com/patent/US4393284A ## CPC - F21L 4/005: {the device being a pocket lamp (F21L4/022, F21L4/045, F21L4/085 take precedence)} - F21V 23/0414: {specially adapted to be used with portable lighting devices} - H01M 50/213: adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) - H01M 50/50: Current conducting connections for cells or batteries - Y02E 60/10: Energy storage using batteries - F21L: LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract An electric switch comprising two parallel blades (1) and (2) between which is placed a battery (3), these two blades being connected by a bending-connecting blade shaped like a V (4). The blade (1) comprises at its end a receptacle (8) connecting one of the poles (10) of the battery (3) to the load (light bulb, motor). The other flexible blade (2) comprises at its end a means (13-14) to make electrical contact with this receptacle (8). ## Claims ### Claim 1 An electric switch for electrically connecting a direct-current source such as a cell, a battery, or a storage battery, to a load on a direct-current which is produced from the direct-current source, comprising an insulating, semi-rigid, integral piece of plastic covered with a conducting layer, said integral piece of plastic comprising: a first blade provided with a means for making electrical contact between a first pole of the direct-current source and the load, said first blade also being provided with an electrical break to current passage along the length of the first blade; a second blade which is parallel to the first blade and is arranged on an opposite side of the direct-current source from the first blade, said second blade being provided with a means to make electrical contact to the load wherein said second blade acts as a flexure member for said means to make electrical contact; a means for keeping the direct-current source located between said first and second blades, said keeping means being attached to the first and second blades; and a connecting blade capable of absorbing shock energy and dimensional variation of said direct-current source, said connecting blade being joined to the bases of said first and second blades while being in electrical contact with a second pole of the direct-current source. ### Claim 2 (depends on 1) An electric switch as defined in claim 1, wherein the means for keeping the direct-current source located between said first and second blades comprises a plurality of jaws which are integrally molded on the first and second blades and located on at least one side of each of the first and second blades which are facing each other, the plurality of jaws acting as clips for the direct-current source. ### Claim 3 (depends on 2) An electric switch as defined in claim 2, wherein the connecting blade assumes an inverted V-shape rounded off at a tip, said connecting blade being connected by its arms to the bases of the first and second blades while the tip makes electrical contact with the second pole of the direct-current source. ### Claim 4 (depends on 3) An electric switch as defined in claim 3, wherein the means to make electrical contact to the load is located at the end of the first blade and comprises a receptacle joined to the end of the first blade so as to form a seat for the load. ### Claim 5 (depends on 4) An electric switch as defined in claim 4, wherein the receptacle is integrally molded and acts as a socket for the base of an electric light bulb. ### Claim 6 (depends on 4) An electric switch as defined in claim 4, wherein the receptacle seats an electric motor's metal casing acting as one of its terminals. ### Claim 7 (depends on 5, 6) An electric switch as defined in claims 5 or 6, wherein the electric break in the first blade comprises a layer of lacquer. ### Claim 8 (depends on 5, 6) An electric switch as defined in claims 5 or 6, wherein the electric break in the first blade comprises a narrow groove which is deeper than it is wide. ### Claim 9 (depends on 7) An electric switch as defined in claim 7, wherein the means to make electrical contact to the load comprises a push-means integrally molded on the end of the second blade. ### Claim 10 (depends on 8) An electric switch as defined in claim 8, wherein the means to make electrical contact to the load comprises a push-means integrally molded on the end of the second blade. ### Claim 11 (depends on 9) An electric switch as defined in claim 9, wherein the first blade, the second blade, and the conducting layer each have a permissible coefficient of elastic elongation, and all of the coefficients of elastic elongation are substantially the same.