Celebrity Inventors
Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 4242546 | Electrical push-button switch A push-button switch in which a resilient conductive elastomer bridging contact member is compressed directly against two or more printed conductors between which it is desired to selectively make and break electrical continuity. The conductive elastomer ... | 12/30/1980 |
| 4199637 | Anisotropically pressure-sensitive electroconductive composite sheets and method for the preparation thereof Anisotropically pressure-sensitive electroconductive composite sheets are provided which have a very low electric conductive resistance in the direction perpendicular to the plane of the sheet when compressed with an adequate pressure in the direction but... | 04/22/1980 |
| 4172216 | Pressure sensitive switch A resilient insulative layer of a plastic foam material is sandwiched between a dimpled carbon powder loaded plastic sheet and a resilient carbon powder loaded plastic foam pad. The dimples extend part way through holes provided therefor in the insulative... | 10/23/1979 |
| 4164634 | Keyboard switch assembly with multiple isolated electrical engagement regions A switch assembly includes an array of switches arranged on a substrate having a conductive pattern on a surface thereof defining a plurality of switch contacts. An apertured spacer is disposed adjacent the surface with an aperture being positioned in opp... | 08/14/1979 |
| 4163879 | Selector switch A selector switch of the type having a thumbwheel selector journalled for rotation in a frame for selecting any one of a plurality of interconnections among external circuits to be connected to electrical contacts mounted in the frame, the selector includ... | 08/07/1979 |
| 4155062 | Thermally sensitive electrical switch A thermally sensitive switch has a thermally conductive body within which is a chamber into which extends at least one electrically conductive terminal. Occupying the chamber is an elastomeric body which is expansible and contractile in response to increa... | 05/15/1979 |
| 4132873 | Multiposition switch A movable switch contact of a switch for connecting in a circuit at least a pair of stationary contacts which may be the lands or terminal pads of a printed circuit on a printed circuit board includes an actuating member and a bridging portion. The actuat... | 01/02/1979 |
| 4114000 | Multi-position switch with single sliding actuator cam, reciprocable cam follower and compressive conductive elastomer A three position switch which selectively interconnects isolated conductors on a printed circuit board is disclosed. In one embodiment, pressure sensitive conductive elastomer pads, disposed in the switch, are brought into contact with isolated conductors... | 09/12/1978 |
| 4064688 | Touch sensitive electrode assembly for solid state wristwatches A front glass sheet having a viewing window and conventionally received within a casing of a solid state wristwatch, is made of electrically conductive glass material which manifests conductivity per se, for serving as one of the principal components of a... | 12/27/1977 |
| 4059956 | Touch type contactless switch structure for electronic wristwatches having insulative member precluding establishment of shunt path by foreign matter An electronic wristwatch is provided with a touch type contactless switch structure for the purpose of altering the operational mode thereof, which comprises a pair of switch electrodes one being disposed on the viewing window in the engagement relationsh... | 11/29/1977 |
| 4055735 | Touch sensitive device A touch sensitive device includes an arrangement of conductors in combination with a pressure sensitive electrically conductive material. The conductors appear in a cross-wire matrix imprinted on the top and bottom surfaces of a rigid printed circuit boar... | 10/25/1977 |
| 4050756 | Conductive elastomer connector and method of making same An electrical connector in which conductive rubber rods are mounted in a nonconductive substrate. The rods extend above and below the upper and lower surfaces, respectively, of the substrate for electrically interconnecting conductive traces on a pair of ... | 09/27/1977 |
| 4045650 | Jumper touch sensor current switching device A current switching device for use in printed circuit board application includes a terminal contact board sandwiched with respect to a foamed spring pad that supportingly receives a pivotal contactor plate in juxtaposed relationship therewith and wherein ... | 08/30/1977 |
| 4045636 | Keyboard switch assembly having printed circuit board with plural layer exposed contacts and undersurface jumper connections A printed wiring board for a keyboard switch assembly for electronic apparatus, such as electronic calculators, comprising a self-supporting insulative board having a plurality of elongated connectors on one surface thereof, at least some of the conductor... | 08/30/1977 |
| 4044322 | Electromagnetic solenoid relay assembly and electrical connection means therefor An electromagnetic solenoid relay assembly in which all the electrical connections are located on one end thereof. The solenoid relay assembly of the invention is attached to a printed circuit board by a spring clip member. The relay assembly of the inven... | 08/23/1977 |
| 4031348 | Push-button assembly switch for watches An improved push-button assembly for a watch, particularly suitable for an electrical switch in a digital watch. A resilient sealing member disposed in a counter bore provides spring means and sealing means for a push-button member. In one embodiment the ... | 06/21/1977 |
| 3988556 | Switching apparatus An on-off switch comprising a contact element of conductive elastomeric material for establishing a current path between a plurality of terminals, and an actuating member for imparting a compressing force to the contact element. When the actuating member ... | 10/26/1976 |
| 3983355 | Switching apparatus A switching apparatus in which at least one pair of contact electrodes is printed on an insulator base fixed to a switch casing, and a contact element of conductive elastomeric material is disposed at a suitable position opposite to these contact electrod... | 09/28/1976 |
| 3980843 | Rotary electric switch in particular for an automobile vehicle luggage boot The switch comprises a body carrying fixed electric contacts and a movable member rotatably mounted in the body. The body has curved ribs of identical radius which extend around a barrel and define between them a plurality of free spaces containing electr... | 09/14/1976 |
| 3979570 | Switching apparatus An on-off switch comprising a contact element of conductive elastomeric material for establishing a current path between a pair of terminals, a movable member for imparting a compressing force to the contact element, and an actuator for actuating the mova... | 09/07/1976 |
| 3973099 | Push button switch for electronic watch A push button switch for setting the time display of electronic timepieces utilizes a conductive elastomeric material such as silver filled silicone rubber as a conductive spring in its moving contact. The elastomer biased contact may be seated in a port ... | 08/03/1976 |
| 3960044 | Keyboard arrangement having after-control signal detecting sensor in electronic musical instrument A keyboard arrangement having an after-control signal detecting sensor means connected to electric circuitry to use the signal generated by this sensor means as an after-control signal for controlling various musical effects. This sensor means comprises a... | 06/01/1976 |
| 3959610 | Hermetically sealed keyboard type assembly with elastomeric electrical connecting link between switch and component modules A housing having key portions of a resilient pad extending therethrough with a metal impregnated elastomer pad overlying the rear surface thereof, a sheet of insulating material having openings therethrough corresponding with the key portions and a plural... | 05/25/1976 |
| 3952173 | Switching apparatus A two-stroke switch to be actuated by two stroke operations comprises a first stationary terminal, a second stationary terminal, a contact element of conductive elastomeric material for establishing a current path between the first and second terminals, a... | 04/20/1976 |
| 3950627 | Push button switch A push button switch comprises a key top having a recess and a resilient member provided so as to surround the recess of the key top. The resilient member has a projected portion extending therefrom in the direction away from the recess of the key top, an... | 04/13/1976 |
| 3944763 | Swimming pool touch pad A swimming pool touch pad seats on a swimming pool wall and is adapted to close an external electric circuit when contacted by a swimmer. The pad includes a nonconductive baseplate adapted to be mounted on a swimming pool wall. A normally nonconductive ge... | 03/16/1976 |
| 3944766 | Seat belt buckle having pushbutton type switch with elastomeric conductor bridging contact An electric switch which is constructed, with the exception of two metallic conductors, entirely of elastomeric or thermoplastic materials wherein relative motion between switch operating parts is confined to a resilient deformation and wherein the switch... | 03/16/1976 |
