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4179798 Methods of adjusting sealed contact switches  
The position of an armature 22 located within a sealed glass envelope 12 of a sealed contact switch 11 is adjusted to meet a gap width requirement between the armature and an electrical contact 23....
4177439 Reed relay and method of assembly  
A reed relay wherein a glass-enclosed switch is inserted into a hollow bobbin and a hinged tab is swung upwardly to provide a support shoulder for a lead projecting through the large opening of the...
4176446 Assembly process of electrodes in an insulating material  
A process of anchoring and assembly of contact springs of miniature relays provided for mounting on printed circuit boards is disclosed. Each electrode, associated with a contact spring, extends...
4174564 Pneumatic indicator device and method of making the same  
A pneumatic indicator device having a housing carrying a movable flag that in one position thereof visually indicates one pneumatic condition of the device and in another position thereof visually...
4172218 Switch stator and method of manufacturing same  
Switch contacts are placed on a thermoplastic stator body in their desired positions and a thermoplastic holding member is pressed onto the switch contacts. The holding member is then...
4168564 Thermally protected vacuum hose assembly  
A vacuum hose assembly, method of making same, and vacuum cleaner employing same are provided wherein the hose assembly comprises a thermally actuated switch which breaks the electrical circuit...
4159563 Electrical switch construction and method of making the same  
A double throw electrical switch construction having a housing carrying a movable actuator unit for moving a snap switch blade of the housing over center to snap a contact portion of the blade...
4158911 Method of manufacturing a vacuum-type circuit interrupter  
The following method is used for manufacturing a vacuum-type circuit interrupter that comprises: (i) an envelope comprising a glass casing and an annular metal disc imbedded in the glass and (ii) a...
4157525 Thermostatic electrical switch and method of switch assembly  
A thermostatic electrical switch and method of switch assembly are disclosed for a switch which provides an electrically conductive path when the temperature of the switch is below a threshold...
4153987 Method for assembling keyboard  
A method is shown for assembling a calculator keyboard which comprises a plurality of switches on a substrate board where each switch comprises first and second contacts spaced from each other on...
4152998 Method for forming snap-acting thermally responsive actuators  
A method of forming a snap-acting thermally responsive bimetallic actuator comprising forming, from sheet bimetal, a member having an aperture with an arcuate outer perimeter and an inner perimeter...
4145805 Method of making a reed relay with molded bobbin  
A reed relay and the method of making the same. A bobbin is molded directly onto a glass-encapsulated switch. Simultaneously, the coil terminals are molded into the bobbin. The coil is wound on the...
4145587 Snap action switches  
A snap action switch blade has a pair of resiliently flexible arms projecting cantilever fashion from a support and drawn together to prestress the blade for snap action, the blade being anchored...
4143179 Method of manufacturing a keyboard  
A method for manufacturing a keyboard which can be utilized in a keying structure is described. It consists of layering a flat fixed plate with a conductive paint, masking a preformed insulating...
4137116 Method of making a pressure switch  
A pressure switch and method of manufacture wherein a resiliently yieldable intermediate open layer is sandwiched between flexible conductive layers, all of which is enclosed between flexible outer...
4131991 Method of making flexible pressure sensitive switch  
A flexible, self-biasing switching element is disclosed herein for closing a circuit by flexing the element from an initial non-contacting position to a second contacting position and for opening...
4131992 Method of re-conditioning mat switches  
An existing worn out floor mat electric switch is reconditioned by cutting it on three sides, severing the electric cord in two places, removing the inner parts of the mat switch, drilling out the...
4125934 Keyboard apparatus and method of making  
A keyboard-operated electronic apparatus such as an electronic calculator is made by forming a dielectric card with a plurality of recesses in one card side. Preferably the card is formed with a...
4118859 Packaging and assembly of sheet metal parts  
Two types of sheet metal parts of an assembly, such as a small electrical switch, are mounted on a continuous strip of easily deformable material in side-by-side alternating relationship so that...
4118610 Snap action switch blades  
A snap action switch blade has a basic `Q` shape with two arms interconnected and drawn together by a bridge portion, which may be integral with the arms, to form a deformed loop capable of snap...
4112576 Method of making a switch  
A solenoid and electric terminal heads are embedded in plastic by injection molding. Die faces accurately position and orient contact surfaces on the heads relative to the solenoid and contacts on...
4109376 Method of manufacturing a circuit breaker assembly or the like  
A circuit breaker assembly includes a subassembly comprising a circuit breaker and a one piece terminal which is severed to provide two separate terminal pieces after the subassembly is secured in...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...