Abstract: An arrangement arranged to enclose a circuit board comprising electronic components is described. The arrangement comprises a structure designed to receive the circuit board and the electronic components, a housing designed to receive the structure, a cover designed to be connected to the housing, and an electric socket adapted to provide the circuit board with electricity. The electric socket is comprised in at least one of the housing or the cover. The arrangement is arranged to enclose the circuit board by the housing and the cover, wherein the structure is designed to be releasable and at least partly bear against the circuit board and the electronic components. A tool comprising an arrangement is also described.

Abstract: Provided is a microswitch wherein the versatility of a lever member can be prevented from being reduced while the rigidity of the lever member is improved. The microswitch is provided with a housing containing a switch mechanism, a plunger which transmits power to the switch mechanism, and a lever member, the base end of which is supported by the housing. In the microswitch, the tip end of the plunger abuts with the bottom surface of the lever member at an intermediate position in the longitudinal direction of the lever member, and an object to be detected can abut with the top surface of the lever member on the tip end side of the lever member. Further, a first reinforcement portion is formed on the top surface of the lever member, excluding an object abutment portion with which the object to be detected is to be abutted, and a second reinforcement portion is formed on the bottom surface of the lever member, excluding a plunger abutment portion.

Abstract: A diaphragm-actuated pressure differential switch assembly includes a blade spring for switching an electrical circuit. The blade spring comprises a proximal end portion configured for electrically conductive attachment to an electrical terminal, a plurality of flexible tension arms extending from the proximal end portion, a pressure contact region configured to accept transmission of a physical force to bend at least one of the plurality of flexible tension arms, a distal end portion integral with the flexible tension arms, the distal end portion including an electrical contact, and a compression spring integral with the distal end portion extending generally proximally from the distal end portion, the compression spring including a first leg and a second leg. Methods of constructing and using the diaphragm-actuated pressure differential switch assembly and the blade spring are also disclosed.

Abstract: The invention relates to a mechanical switching contact having an insulating material support (1), on which fixed contacts (4, 5, 6) are arranged. Furthermore, a switching lever (2) is mounted such that it can rotate on the insulating material support (1) and has a pivoting arm (22). In addition, a pivotable contact housing (3) is also mounted on the insulating material support (1), which contact housing bears parallel contact fingers (9, 10), which surround the respectively connected fixed contacts (4, 5, 6) on both sides when contact is made.

Abstract: An apparatus for actuating a switch element (2) is provided with an operating device (3) that acts upon a tilt member (16) so that the tilt member instantly moves the switch element (2) from a neutral position into a tilted (switched) position. The operating device (3) is mounted pivotally on a housing and includes a pressure member (6) biased by a spring (15) toward the tilt member (16). The tilt member (16) is adapted to be tilted from the neutral to the tilted position about a tilting edge (20).

Abstract: The invention relates to a mechanical switching contact for bipolar commutation comprising an insulating support having fixed contacts disposed therein. Said contacts are switchable by means of a contact carrier which possesses a pivoting arm on the free end and thereof with a respective conducting contact element. The whole mechanical switching contact is configured as a modular unit which can be assembled in an optional manner.

Abstract: A double-pole single-throw switch has a pair of spaced stationary contacts adapted for carrying current to individual circuits. A cantilevered, torsionally flexible, electrical current carrying arm has a pair of correspondingly spaced moveable contacts mounted on the free end and disposed adjacent the stationary contacts. A toggle spring actuator has one reaction end engaging a slot in the end of the electrical current carrying arm for effecting relative lost motion movement and impacting the sides of the slot for causing rapid making and breaking and a wiping motion of the contacts. The spring engages the slot midway between the contacts to permit angular movement to accommodate misalignment of the stationary contacts.

Abstract: In a preferred embodiment, a snap switch which employs a conical contact mounted at the free end of a spring blade. The contact completes an electrical circuit by contacting and electrically joining two, round, spaced apart terminals. The resulting dual radii contact provides high unit pressure and a minimum of polymer-forming wiping action. The switch introduces little resistance into the electrical circuit, since the spring blade carries no current. The terminal wires are of nickel with sleeves of oxidized nickel bonded thereto in the region where the wires pass through the base of the switch. The oxide provides a tenacious surface for the adherence thereto of sealing glass to insulatively bond the wires to the base.

Abstract: The invention relates to a leaf switch having a scroll spring (6) which can be hooked between a switching are elongate windows which extend in the transverse direction and into which centrally projecting tongues (3a, 2a) of the switching tongue (3) and of the spring lever (2) engage. In order to avoid an unintentional unhooking of the scroll spring (6), there is a deformation projecting beyond the tongue surface at the front section of at least one of the two tongues (3a, 2a). The said deformation can be constructed as an embossed hollow projection or as laterally bent-over tongue legs.

Abstract: A switch capable of significantly reducing the number of parts therefor and permitting the manufacturing and assembling to be carried out with high efficiency. Only four parts consisting of a casing, a top plate or a bottom plate, a cam lever and a leaf spring each simplified in structure are required to construct the switch. The cam lever causes pressing force acting in a small magnitude on its lever section to be changed to pressing force of an increased magnitude acting on its cam section in a lever-like manner about a support shaft.

Abstract: A switch device for making a motor or the like alternate between forward reverse rotation, having a pair of switches and a control circuit. When either one of the switches is activated, the control circuit activates the motor in one or the other direction depending upon which switch is activated. When both switches are activated, the control circuit activates the motor until a desired action or task is completed. Therefore, when the present invention is used in a window glass lifting apparatus of an automobile, three kinds of operations of the window glass can be performed by using a pair of switches: partial upward and partial downward movement and continuous movement down to the fully open state of the window glass.

Abstract: A snap action switch comprises a contact having a cut-out tongue mounted on a post with the tongue bent to form a spring, the post being one terminal. The other end of the element remote from the tongue end initially contacts an exposed second or third terminal above or below the other end.When the actuator or nose from a resilient body acts against the surround adjacent the tongue end, force is exerted against the contact. As a result the contact snaps from the initial connection between the nose and one of the second or third contacts to the other. When the resilient body is relaxed to permit the nose to resume its original position, the switch snaps back to resume connection between the post the initial connection with the second or third terminal.The disclosure includes an incipient form of the snap action switch; and also a method of making the incipient form and the switch.

Abstract: A microswitch, comprising: a casing consisting of a base casing half and a cover casing half; a plurality of terminal pieces received, at their intermediate parts, in slots provided in the base casing half and extending substantially perpendicularly from a surface opposing a corresponding surface of the cover casing half; a contact mechanism accommodated in a cavity in the casing and electrically connected to the terminal pieces; and a push-button member elastically supported by a spring member and projecting out of the casing for actuating the contact mechanism by movement of the push-button member; the terminal pieces being provided with projections extending from their leading edges, and the slot being provided with a recess for receiving the projection; wherein the slot comprises an external part and an internal part which is narrower than the external part, and a projecting length of the projection is larger than a depth of the internal part.

Abstract: A microswitch in which a good snap action feeling is obtained and an operating stroke is large is provided. Included in the microswitch is a swingable lever which is pushed by a pressing projection of a push button swingably pivotally supported. One end of the lever is pivotally supported and the other end is coupled with one end of a movable member having a movable contact. The movable member is biased by a spring in one direction.

Abstract: For the purpose of mounting a switch on a circuit board and of actuating the switch, it is proposed that the biassing spring biassing the wiper into a first above dead-center position be pivoted at the same main mounting part on which the wiper is supported, that a rod be arranged to pass through the circuit board in a direction perpendicular to the direction of the wiper movement, and that the rod be seated in such a manner that it comes to bear upon the central area of the biassing spring so as to displace the latter relative to the pivot point of the spring on the wiper in such a manner that the wiper is moved into a second switching position for the time during which such action persists.

Abstract: An electric switch design compensates for unprodictable but significant variability, within a known range, in case and cover material shrinkage during manufacture. A contact actuator has radially spaced guide bosses and an axial barrel providing a plurality of external axially extending sharp bearing ridges. Case guide structure cooperates with the actuator guide bosses to permit actuator travel generally normal to the case floor. The actuator is dimensioned with respect to the case guide structure to accommodate the unpredictable case material shrinkage variability and thereby to permit actuator play in which the actuator axis is rotatable out of the normal to the case floor.

Abstract: A switch is disclosed having a movable piece with a movable contact and a movable plate coil, a fixed terminal provided with a fixed contact facing the movable contact, a movable coil spring with an end being fixed at a standing piece of a common terminal, wherein the other end of the coil spring is coupled to the end of a movable piece, and wherein the movable plate coil is biased by the movable coil spring with one end of the movable plate coil swingably held by a holding piece of the common terminal, and a push-button for pressing the upper portion of the movable coil. The switch has an actuator having a supporting member which rotatably engages with the case, wherein the supporting member is formed in a plane generally perpendicular to a rotary shaft of the actuator.

Abstract: A fast operating disconnect switch minimizes the arc that occurs when the switch contacts are opened or closed by operation of a rotor assembly while the switch is electrically energized. A powerful operating spring within the operating mechanism under the control of a handle operator assembly overcenters upon the ON-OFF as well as OFF-ON movement of the handle operator. The handle operator assembly is adapted for either left-hand or right-hand mounting to a common rotor assembly.

Abstract: An electrical snap-action type switch contact blade (80) is provided. Blade (80) has a base (6) and an electrical contact region (10) intermediate a pair of spaced-apart support legs (14) that extend angularly away from base (6) to respective free-ends. A tongue (12) extends arcuately away from region (10) in a direction opposite to support legs (14) and towards base (6) to a free-end (23). Free-end (23) of tongue (12) and the free-ends of support legs (14) respectively engage spaced-apart anchoring sites to secure blade (80) to the switch frame. Blade (80) can be actuated by application and removal of a Force (F) both against base (6) and for a prescribed distance (X) along support legs (14).

Abstract: A novelty item which is particularly useful as a decorative piece is formed as a miniaturized transparent container shaped to authentically simulate a barrel normally used to contain crude oil with a quantity of authentic crude oil being contained within the container and visible therein, the container being sealed to prevent removal of the oil and having a label or other markings on the outside thereof consisting of a name or designation fancifully associated with crude oil or the ownership or production thereof.