Bizarre Patents
A small umbrella which may be removably attached to a beverage container in order to shade the beverage container from the direct rays of the sun.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5144103 | Key switch A push button switch includes an elastic sheet member serving as a stopper of an operation member and an elastic projection. When the operation member abuts with the projection, it is elastically deformed to absorb abutment impact to thereby cost effectiv... | 09/01/1992 |
| 5136131 | Push-button switch including a sheet provided with a plurality of domed members A switch including a springy metallic sheet having a plurality of integrally formed domed members, and a force removing or absorbing element provided within the sheet. The domed members are provided by pressing at a plurality of predetermined positions of... | 08/04/1992 |
| 5115106 | Momentary "on" switch suitable for keyboards A momentary contact switch suitable for use in an electrical keyboard has cylindrical projections projecting from a baseplate with axial bores into which projections of the keys fit and by which are guided and retained. A resilient boot interposed between... | 05/19/1992 |
| 4987275 | Multi-pole momentary membrane switch A membrane keyboard is comprised of a dielectric substrate and an overlying deflectable membrane layer separated by a spacer. A plurality of contact poles are located on the dielectric substrate with an electrically conductive common contact area located ... | 01/22/1991 |
| 4978818 | Key for a circuit board A key for printed circuit boards comprises an electrically conductive snap disk embedded in a recess in a spacer layer between a cover foil and a board coated with printed conductors. The key is used as an opener key with a pressing point, to which end, t... | 12/18/1990 |
| 4952761 | Touch contact switch A touch contact switch having a plane contact arrangement has a cover of elastic material covering the contact arrangement. Contacting in the contacting arrangement takes place only after a deliberate force P' has been applied which causes a partial surfa... | 08/28/1990 |
| 4947461 | Multi-position electrical switch A multiple electrical switch comprising a casing, a control knob supported on the top edge of the casing for tiltable movement in four directions, a retainer horizontally mounted within the casing and a conversion knob tiltably supported by the retainer a... | 08/07/1990 |
| 4933522 | Flanged snap dome A contact element is provided, of the type having a domed middle portion that can be manually deflected against a terminal to close an electrical circuit, which avoids damage to the circuit and which can be easily held in place. The contact element has a ... | 06/12/1990 |
| 4864085 | Keyboard switch A membrane switch sheet is disposed on a base plate and an adhesive layer is formed all over the membrane switch sheet. A positioning sheet, which has positioning holes respectively corresponding to membrane switches arranged on the membrane switch sheet,... | 09/05/1989 |
| 4851626 | Key switch device A rubber spring is disposed on a base on which are mounted fixed electrodes. The rubber spring includes first and second cup sections. The first cup section is in the form of an inverted cup, whose top portion is smaller in diameter than the bottom portio... | 07/25/1989 |
| 4839474 | Switches and keyboards A low profile switch or keypad has one or more touch buttons of circular or polygonal shape in plan formed integrally with and raised from a surrounding membrane of elastomeric material by a wall of resiliently deformable material of thickness and angle r... | 06/13/1989 |
| 4814561 | Elastic member for supporting a key top in a push button switch construction An elastic key top construction for supporting a key top comprising a key top push or support section on which the key top is mounted, a projection disposed below the key top support section, a first movable wall integral with the key top support section ... | 03/21/1989 |
| 4743722 | Touch contact switch with arched switching film A switch designed to be activated by touch contact has a switching chamber ith contact surfaces on opposite sides thereof. A flexible switching film carries one of the contact surfaces and is arched over one side of the chamber. In order to prevent an incr... | 05/10/1988 |
| 4710597 | Keyboard for the control box of an electric apparatus Keyboard for the control box (11) of an electric apparatus comprising a sheet (1) which forms a plurality of contactors (2) each projecting from the sheet through a blister (3) which is elastically deformable and which acts as a spring, the contactors (2)... | 12/01/1987 |
| 4695681 | Membrane for membrane switches and composing elements thereof Membrane for membrane switches and composing elements thereof, characterized thereby that it mainly consists of a profiled top layer (2) made of a resilient material and of an underlying supporting layer (1) that is provided with an opening (3), the top l... | 09/22/1987 |
| 4678880 | Keyboard switch A keyboard switch is provided which comprises a substrate on the upper surface of which a flexible switch is disposed that has paired fixed and movable contacts and includes a flexible sheet, guide posts passing through and secured to the substrate at mut... | 07/07/1987 |
| 4677268 | Elastomeric switch control device An elastomeric switch control element for push button switches and the like, including first and second annular spring portions formed of elastic material, one of the spring portions adapted to undergo a rolling action upon depression of the switch contro... | 06/30/1987 |
| 4668843 | Keyboard switch apparatus for electronic musical instrument A keyboard switch apparatus for an electronic musical instrument has first and second switches each constituted by stationary and movable contacts. The stationary contacts of the first and second switches are formed adjacent to each other on a single boar... | 05/26/1987 |
| 4649246 | Keyboard for initiating switching operations or switching signals associated with respective symbols on the surfaces of the keys A keyboard for initiating switching functions or switching signals. Synchronizing pins coupled to four key members at the mutually adjacent crossing between them cause actuation of contact sets upon depression of the keyboard surface above each synchroniz... | 03/10/1987 |
| 4634818 | Switches and keyboards A low profile switch or keypad has one or more touch pads (14) formed integrally with and raised from a surrounding membrane or key mat (15) of elastomeric material by a wall (30) of resiliently deformable material of thickness and angle relative to the m... | 01/06/1987 |
| 4611261 | Electronic equipment An electronic equipment comprises key input means having a plurality of key input areas, a frame member for sandwiching a metal plate therein, and printed circuit means having a key input circuit adapted to be closed by a depression force from the key inp... | 09/09/1986 |
| 4609792 | Encoding keyboard An encoding keyboard construction comprising a common input lead, a plurality N of output leads, and a plurality Y of key locations, each of which key locations has associated therewith aligned first and second contact sites defining a contact site pair, ... | 09/02/1986 |
| 4604509 | Elastomeric push button return element for providing enhanced tactile feedback An elastomeric push button return element for providing enhanced tactile feedback, and a push button switch employing the return element. The return element is configured as a tubular section, a flange adapted to be restrained on a mounting surface, a rad... | 08/05/1986 |
| 4584444 | Keyboard switch A keyboard switch is provided with an insulating substrate, a first electrode laid on the insulating substrate, a second electrode formed of a conical coil spring and facing the first electrode, a dielectric disposed on the first electrode, a button posit... | 04/22/1986 |
| 4571466 | Spring unit for a keyboard A spring unit for a keyboard comprises a base sheet having a specified number of openings perforated thereupon in accordance with a key layout and a number of dome-shaped spring members separated individually from each other, and each bearing a movable co... | 02/18/1986 |
| 4540865 | Push buttons A keyboard (61) is provided with rubber (silicone) buttons (64, 66) with collapsible webs (14) connecting the buttons to a base layer (10, 40, 60). A solid finger of rubber (20) underneath each button actuates a membrane switch (23) underneath the button.... | 09/10/1985 |
| 4536628 | Pushbutton switch assembly with integrated lock-down switch The present invention relates to a pushbutton switch assembly for use with telephone sets, having an integrated lock-down switch. With the aid of a rotatable trip cam of the lock-down switch, randomly one of several domes of a rubber-like switching mat of... | 08/20/1985 |
| 4518833 | Conductive elastomeric ink composition A conductive elastomeric ink is described comprised of very fine nickel particles admixed in a silicone binder. The ink has utility in elastomeric switch control devices, printed circuits and the like.... | 05/21/1985 |
| 4508942 | Keyboard switch A membrane keyboard with a circuit means having a plurality of snap action domes formed therein has a cover sheet thereon. A plurality of cavities formed between the cover sheet and the domed circuit layer has air passages connecting each cavity with the ... | 04/02/1985 |
| 4492829 | Tactile membrane keyboard with asymmetrical tactile key elements A tactile or snap action membrane keyboard is presented wherein the tactile or snap action key elements are protrusions in a membrane sheet, the protrusions being asymmetrical to preprogram the collapse of the tactile element.... | 01/08/1985 |
| 4491702 | Key-top panel and keyboard structure using the panel A key-top panel constructed of an electrically non-conductive, resilient material and formed with closed-loop grooves each of which has a closed-loop cross section, each of the closed-loop grooves being deep in the direction of thickness of the key-top pa... | 01/01/1985 |
| 4477700 | Tactile membrane keyboard with elliptical tactile key elements A tactile or snap action membrane keyboard is presented wherein the tactile or snap action key elements are protrusions in a membrane sheet, each protrusion having a flat elliptical top surface or plateau with a plurality of inclined ramps from the base s... | 10/16/1984 |
| 4463232 | Membrane switch having spacer posts Disclosed is a pushbutton-type switch such as used on the keyboard of a small-size electronic computer. The switch includes a main member carrying a movable contact and one or more projections or posts of lesser height than the movable contact. Upon appli... | 07/31/1984 |
| 4423294 | Laminate switch assembly having improved durability A laminate switch assembly or keyboard comprises a tensioned dome switch plate having improved durability which provides tactile feedback to the operator. Each tensioned dome on the switch plate is aligned with an electrical contact area formed on a print... | 12/27/1983 |
| 4390765 | Rubber-made covering member for push button switches The invention provides a push button switch covering member integrally made of a rubbery elastomeric material having an improved structure with which a much larger key stroke is obtained before a snapping action takes place in the covering member when the... | 06/28/1983 |
| 4376238 | Electrical devices A membrane switch assembly in which portions of a membrane 14 mounted on a base member 11 are belled-outwardly to provide cavities 15, which are positioned so as to overly the location at which conductors 21, 22 are to be connected. The formation of each ... | 03/08/1983 |
| 4365408 | Method of making membrane contact switch A contact switch assembly and method for its manufacture utilizing a resilient dome having electrically conductive surfaces which is positioned on a unitary sheet of plastic or membrane which has a circuit pattern deposited thereon, the circuit pattern fo... | 12/28/1982 |
| 4355483 | Switch mechanism A switch mechanism for use in an electronic toy having a printed circuit board, a portion of which has a pattern of printed wiring with contacts thereon. A body of conductive resilient material, disposed in the housing of the toy with the printed circuit ... | 10/26/1982 |
| 4352963 | Low profile microswitches, particularly useful for the composition of keyboards and method of making A keyboard unit is shown having a substrate in which portions of the substrate are physically displaced to provide a cavity, an embossment and a plurality of protuberances for each switching station. The embossment, in registry with a button contact area,... | 10/05/1982 |
| 4349712 | Push-button switch A push-button switch using one dome sheet of plastics with an electrode on one face and a second flat sheet of plastics with an electrode on the face opposite the first one. Between the sheets and below the second one plates of rigid material with holes b... | 09/14/1982 |
