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| Number | Title | Issue Date |
| 4105881 | Circuit breaker apparatus with static pressure lock An enclosed cylindrical vessel has a cover which is keyed to the vessel. The vessel encloses the separable main contacts and operating mechanism of a circuit interrupter. One of the terminals for the circuit interrupter is disposed on the side of the cyli... | 08/08/1978 |
| 4101861 | Thermostatic switch and method of assembly A compact, low cost, snap-acting thermostatic switch which can be automatically assembled comprising a single member housing, an unrestrained snap-acting disc, a stationary contact means and a movable contact means with a transfer means attached thereto i... | 07/18/1978 |
| 4090166 | Switch structure and calibration technique Disclosed are a switch structure and a calibration technique that facilitate the rapid and substantially automatic calibration of a switch of the type that responds to changes in an environmental parameter (e.g., a thermostatic switch). An abutment member... | 05/16/1978 |
| 4086548 | Switchable attenuator assembly and method of assembling same A switchable attenuator includes a split housing assembly formed of interlocking cover and support members. A plurality of rocker arms are mounted for pivotable movement between the cover and the support members and each rocker arm has lugs formed on oppo... | 04/25/1978 |
| 4083100 | Method of manufacturing a keyboard assembly An improved method is disclosed for manufacturing a keyswitch assembly which includes a plurality of switches in a predefined arrangement on the face of an insulative circuit board and which also has a protective, insulative coating over the switches and ... | 04/11/1978 |
| 4081898 | Method of manufacturing an electronic calculator utilizing a flexible carrier Electronic calculators are manufactured by use of a flexible insulative carrier, the carrier being a tape-like-plastic substrate a single length of which is sufficient to manufacture a plurality of the electronic calculators, wherein conductor patterns ar... | 04/04/1978 |
| 4081897 | Method of making an electric switch A method of making an electrical switch having means adapted to be movable in response to heat supplied thereto between a pair of operable positions. The method includes the steps of: heating the movable means so as to effect its deflection in one of its ... | 04/04/1978 |
| 4077114 | Vacuum power interrupter This invention discloses a vacuum power interrupter, having high reliability of vacuum sealing, which is manufactured by using the most suitable brazing material whose main component is Cu or Au for each component of vacuum power interrupter in one brazin... | 03/07/1978 |
| 4077113 | Method of manufacturing an electro-optical switch A method of manufacturing an electro-optical switch in which a metal layer is deposited on a substrate of ferroelectric material and etched to expose the substrate in the form of two channels disposed parallel over a given length. A second layer is then d... | 03/07/1978 |
| 4070752 | Method of making an electrical switch and chemically milled contacts A rotary electrical switch is provided of the type that includes a stator body of substantially cylindrical shape having a cylindrical opening coaxially disposed therein. The stator body includes a plurality of electrical contacts embedded in the stator b... | 01/31/1978 |
| 4068369 | Method of making pushbutton keyboard system A keyboard system for an electronic pocket calculator or the like comprises a substrate board having a generally flat surface with a network of circuit paths thereon. The board is provided with switch contacts at a plurality of switching stations and term... | 01/17/1978 |
| 4067102 | Methods of manufacturing tactile switch for keyboards and the like A tactile switch plate for a keyboard member has a planar body portion provided with a plurality of outwardly deformed carrier portions corresponding in number and spacing to the number and spacing of the keys of the keyboard. Each of the carrier portions... | 01/10/1978 |
| 4059897 | Method of joining thin and thick switch members A joint construction of two members each having one surface thereof disposed against a surface of the other member. One of the members has a part thereof punched through an unblanked part of the other member beyond the other surface of the other member, t... | 11/29/1977 |
| 4055888 | Process for making reed switches Reed switches, contact sections of the reed of which bear with a predetermined positive force against inside surfaces of an elongated envelope, are made by forming combs, each including a header web and, integral with the web and projecting therefrom, a p... | 11/01/1977 |
| 4045635 | Electrical switch construction and improved overtravel switch blade therefor and method of making the same An electrical switch construction having a housing provided with an acutuator for causing movement of a movable switch blade relative to an overtravel compensating fixed switch blade, the fixed switch blade being secured to a rigid terminal carried by the... | 08/30/1977 |
| 4043030 | Process for preparing distribution rotor A distribution rotor is prepared by forming an electrode, having a central electrode part, an outer electrode part, and connecting parts, and fixing a resistor to both the central electrode part and the outer electrode part, subsequently severing and remo... | 08/23/1977 |
| 4037317 | Method of making fluid operated electrical switch construction A fluid operated electrical switch construction having a first housing provided with an electrical switch therein and a second housing having an expandible and contractible fluid operated power element therein, the housings being secured together in a pre... | 07/26/1977 |
| 4037316 | Method of assembling temperature responsive resistance member A method of assembling a temperature responsive resistance member within a pair of separable housings. This method includes the steps of: mounting the temperature responsive resistance member in both supporting engagement and electrical contacting engagem... | 07/26/1977 |
| 4034761 | Disposable electrosurgical switching assembly A disposable electrosurgical unit for generating electrical signals intended for applications to the body of a patient via an electrosurgical electrode is provided. Cutting signals and coagulation signals can be applied by the actuation of a switch in the... | 07/12/1977 |
| 4033029 | Method of assembling calibrated switch A wedging member, such as a ball, is frictionally engaged with inclined supporting ends of a pair of contact elements at a calibration temperature. The wedging member retains the positioning of the supporting ends as the temperature is changed from the ca... | 07/05/1977 |
| 4033030 | Method of manufacturing keyswitch assemblies A keyswitch assembly including a circuit board having a plurality of circuits, each circuit terminating with a pair of first and second contacts, and a curved, resilient contact plate associated with each pair of contacts having at least a portion of its ... | 07/05/1977 |
| 4027385 | Method of manufacturing sealed thermostats A method of manufacturing sealed thermostats or the like is disclosed in which male and female members are assembled with an interference fit to produce a seal which is maintained through a predetermined operating temperature range. The minimum interferen... | 06/07/1977 |
| 4023266 | Process for preparing liquid metal electrical contact device In a process or method according to the invention the parts of an electrical contact device, such as a slip ring comprising the ring to receive the liquid metal and the probe or brush for contacting the liquid metal are treated by sputter etching to remov... | 05/17/1977 |
| 4015028 | Method for forming an improved contact for a radiation switch The reliability of radiation switches is improved in accordance with this invention by mechanically modifying the contact members of the switch structure to reduce the heat sinking effectiveness of the switch contact members.... | 03/29/1977 |
| 4011650 | Cold working process A thin metal diaphragm of a differential pressure unit (DPU) is stretched beyond its yield point. This method step unexpectedly reduces the spring rate and zero shifts due to line pressure fluctuations and due to differential thermal expansion and contrac... | 03/15/1977 |
| 4006526 | Electric commutator-switch and method for assembling it The central element of the tumbler is hollowed to receive a hollow spring element and a piston whose ends are similar and symmetrical. One of the ends of the piston cooperates with the spring element and the other end cooperates with a contact forming ele... | 02/08/1977 |
| 4005299 | Electrical contact member having low electrical resistance An improved contact element is disclosed useful particularly as a contact element bridging at least two stationary contacts. A layer of metal having high electrical conductivity is disposed on selected locations of an electrically conductive disc in align... | 01/25/1977 |
| 4004337 | Apparatus for reed switch manufacture The invention relates to a method and apparatus for the encapsulation of a switch contact sub-assembly, in which sub-assembly at least two contacts are rigidly joined in a desired spatial relationship by a destructible bridging piece, wherein the sub-asse... | 01/25/1977 |
| 3999287 | Method of making a switch having a diode mounting feature A manually actuated switch includes a pair of terminals forming switch poles and a knob which is manually actuated to complete or interrupt an electrical circuit across the poles. A pair of spaced contacts are embedded in the knob and resiliently grip the... | 12/28/1976 |
| 3995365 | Method of forming electrical contacts A method of forming an electrical contact in an electrical component includes the steps of punching an opening in the electrical component, moving a strip of contact material over the electrical component, shearing a piece of contact material from the str... | 12/07/1976 |
| 3988825 | Method of hermetically sealing an electrical component in a metallic housing A hermetically sealed electrical component. A conductor passes through a metal body member in which it is sealed by a glass-to-metal seal, extending to the electrical component. The metal body member is soldered or brazed to a support plate. A cap enclosi... | 11/02/1976 |
| 3982081 | Keyboard assembly with overlapped flexible printed circuit cable switch This invention relates to a keyboard switch assembly having a minimal number of components. A flexible printed circuit cable is configured in such a manner so that the flexible printed circuit cable contains complementary overlapping contact points interc... | 09/21/1976 |
| 3968468 | Electrical switch and method of calibrating An electrical switch is provided with means movable in response to heat supplied thereto between circuit controlling positions, and the movable means has a predetermined generally arcuate configuration in one of its circuit controlling positions. Means fo... | 07/06/1976 |
| 3967370 | Method of manufacturing a multicontact switch A multicontact switch for use in a keyboard is manufactured from a plurality of metallic strips and a printed circuit board. The strips are passed through rollers that form arched portions in the strips, and the arched portions are then aligned with conta... | 07/06/1976 |
| 3967369 | Process for making electrical switches A strip of electroconductive material is perforated by I-shaped holes. Contact materials shaped to conform to said I-shaped holes are inserted in the holes and swaged. Then, the I-shaped contact materials are perforated across the middle thereof in conjun... | 07/06/1976 |
| 3950846 | Method of forming a deformed, integral switching device A method of forming a switching device having a movable contact that is an integral part of a metallic support substrate and is supported above the support substrate by a plurality of spring-like legs that are also an integral part of the support substrat... | 04/20/1976 |
| 3938066 | Reed switches and process for making them A reed switch is made by forming an envelope tube, non-circular in cross-section, with a known internal heightwise dimension, forming a reed element with two end-bearing portions at least one of which is part of a contact section of the reed element and a... | 02/10/1976 |
