| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 200047000 | LIMIT SWITCH | 17 |
| 20090321228 | Limit Switch Control Device - A limit switch control device comprises a shaft, a sensor, an upper limit reed switch, a lower limit reed switch and a drive element that cooperate with a control circuit. The sensor is combined on the shaft which is driven by the drive element, which is provided with an upper limit witch and a lower limit switch, so that when the sensor detects the upper limit and the lower limit reed switches, the upper and the lower limit switches will be triggered to power off the drive element. | 12-31-2009 |
| 20110297516 | LIMIT SWITCH ASSEMBLY - A limit switch assembly includes a housing having a first end, a second end, an inner surface that defines an inner volume and a spring engagement surface, and an outer surface. A limit switch disposed within the inner volume includes a threaded bushing section at least partially extending from the first end. A spring within the inner volume surrounds the bushing section, and engages the limit switch and the spring engagement surface. A calibration nut threaded onto the bushing section engages the first end of the housing. A seal divides the inner volume of the housing into a first volume and a second volume. A drain hole formed in the housing fluidly communicates the first volume to a surrounding environment. A terminal assembly connected to the second end of the housing seals the second volume from the surrounding environment. | 12-08-2011 |
| 20120199449 | LIMIT STOP APPARATUS, CIRCUIT BREAKERS INCLUDING LIMIT STOPS, AND METHODS OF USING SAME - A limit stop apparatus for a multi-pole electrical contact assembly is disclosed. The limit stop apparatus interconnects crossbars of respective contact assemblies wherein one or more contact arms are pivotable relative to each crossbar. The limit stop apparatus is configured to engage the one or more contact arms on a same side of the one or more contact arms containing moveable electrical contacts. In one or more embodiments, the limit stop apparatus has a connecting bar with limit stops having arc shields molded to the connecting bar, wherein the arc shields can be phase-to-phase arc shields and contact-to-component arc shields. Circuit breakers and multi-pole electrical contact assemblies having a limit stop apparatus, and methods of operating the multi-pole electrical contact assembly are disclosed, as are other aspects. | 08-09-2012 |
| 20130126315 | SWITCH - A switch provided with an actuation body to be displaced due to contact with a physical body and operated in accordance with a position of the actuation body includes a mode switching unit ( | 05-23-2013 |
| 20130313084 | VIBRATION LIMIT SWITCH SYSTEM - A vibration limit switch system and related method is provided with a piezoelectric transmitting- and/or receiving unit, in operable connection with a membrane that can be put in oscillation, and a mechanical oscillation arrangement that is coupled to the membrane, whereby the piezoelectric transmitting- and/or receiving unit is adhered directly, or via an adaptation layer by an adhesive layer, to the membrane 4. In this improvement, the adhesive layer between the membrane and the transmitting-and/or receiving unit or the adaptation layer has a thickness in an edge area R which thickness is elevated in comparison to a central area Z. This thickness is arranged in differing geometries and amounts to further improve performance. | 11-28-2013 |
| 20140326586 | LIMIT SWITCH - A limit switch has a housing having an opening in a front surface of the housing, and a connection hole in which a lead wire is drawn made in a bottom surface of the housing, a switch main body fixed in the housing, a front surface of which is vertically partitioned into a plurality of stages, a pair of fixed contact terminals embedded at each of the stages, an operation shaft exposed from a ceiling surface of the switch main body, a contact that is opened and closed by driving the operation shaft in a shaft center direction, and a projection provided between the fixed contact terminals embedded at the stages of the front surface of the switch main body. | 11-06-2014 |
| 20140360849 | LIMIT SWITCH AND METHOD FOR PRODUCING SAME - A limit switch having a housing having a box, an attachment hold made in a side surface of the box, having a cylindrical bearing section, a rotating shaft rotatably inserted through the cylindrical bearing section, a cam unit provided in a leading end portion of the rotating shaft, and an operation lever provided in the other end portion of the rotating shaft. Rotational action of the operation lever is converted into vertical action by the cam unit in the box. A contact of a switch main body accommodated in and fixed to the housing is opened and closed. An outer diameter of the cam unit is smaller than an inner diameter of the attachment hole. | 12-11-2014 |
| 20140374224 | LIMIT SWITCH - A limit switch has a housing, a plunger that is supported in the housing while being vertically movable, a switch main body disposed in and fixed to the housing by the plunger, an operation shaft having an upper end thereof exposed from a ceiling surface of the switch main body, a contact that is opened and closed by driving the upper end of the operation switch, and a displacement expanding mechanism arranged between the switch main body and the plunger. The displacement expanding mechanism has a pair of pivoting tongue pieces rotatably supported by a pair of support shafts arranged in parallel with each other. A free end of one of the pivoting tongue pieces is abutted on the upper end of the operation shaft. A free end of the other pivoting tongue piece is abutted on an upper surface of one of the pivoting tongue pieces. | 12-25-2014 |
| 20150008102 | LIMIT SWITCH AND LINEAR ACTUATOR HAVING THE SAME - In a linear actuator, a limit switch includes an insulation housing formed with an opening and plural slots; a press block disposed on the insulation housing and exposed outside the opening; a pair of connection pins disposed in the insulation housing and spaced with an interval, and respectively protruded from the slots; an elastic connection guiding set including an elastic unit pressed by the press block and a connection guiding sheet connected to the elastic unit, wherein the connection guiding sheet are connected to the pair of connection pins; and a diode disposed in the insulation housing and including two guide pins, wherein the two guide pins are respectively and correspondingly connected to the pair of connection pins in the insulation housing. Accordingly, the electrical connection for the limit switch is simplified thereby facilitating automatic production. | 01-08-2015 |
| 20150027862 | ROBOT AND EMERGENCY STOP METHOD OF ROBOT - A robot includes a power source of the robot, and a switch section adapted to block electrical power supply to the power source. The switch section is disposed on a front side of the robot arranged to face to a workbench when at work. The switch section blocks the electrical power supply to the power source in a case in which it is detected that a distance between the robot and the workbench is longer than a predetermined distance. | 01-29-2015 |
| 20150047953 | Planetary limit switch - A planetary limit switch contains a front transmission module, at least one following transmission module, and at least one micro switch. The front transmission module couples with an external power source and includes a first planetary gear carrier and plural first planetary gears for matching with the first planetary gear carrier, a front driving gear meshes with the plural first planetary gears and connects with a driving shaft so as to be driven by the driving shaft. Each following transmission module includes a second planetary gear carrier and a plurality of second planetary gears, and the plurality of second planetary gears meshing with a following gear, wherein the second planetary gear carrier has a cam portion arranged on an outer peripheral side thereof. The at least one micro switch is fixed below at least one following transmission module and touched by the cam portion of the second planetary gear carrier. | 02-19-2015 |
| 20150075952 | LIMIT SWITCH - The invention relates to a limit switch comprising: | 03-19-2015 |
| 20150096870 | LIMIT SWITCH - The invention relates to a limit switch comprising:
| 04-09-2015 |
| 20150114805 | SWITCH - A switch has a rotary shaft that rotates in response to an external force, a cam provided on the rotary shaft and including a cam action section, wherein the cam rotates in response to the rotation of the rotary shaft, a displacement member including a cam support section that contacts the cam action section, wherein the displacement member is displaced in response to the cam support section being pressed by the cam action section rotating, and a switch module that performs an on-off action in response to the displacement of the displacement member. The cam action section is made of a metal. The cam support section is made of a resin softer than the cam action section. | 04-30-2015 |
| 20150114806 | SWITCH - A switch has a switching mechanism, a housing in which the switching mechanism is disposed, and a slidable actuator that causes the switching mechanism to operate. At least one connection which can be in direct contact with outside air, out of connections between members of the switch, is provided with a sealing member. Rubber contained in the sealing member includes fluorocarbon rubber and does not include silicone rubber. | 04-30-2015 |
| 20150380177 | ELECTRICAL SWITCHING DEVICE - The invention relates to an electrical switching device, in particular a position switch, limit switch, microswitch or other limit stop switch, having at least one housing and one or more electrical switch contacts arranged in the housing, the housing having at least one actuation opening, via which the switch contact(s) can be actuated mechanically from a position outside the housing, the switching device, as a further separate component, having at least one actuator, which has at least one actuation ram that is longitudinally displaceable in the direction of a longitudinal axis of the actuator, the actuator, in a number of different rotation angle positions with regard to the longitudinal axis, being securable to the housing of the switching device in a manner secured against rotation, in such a way that, in the event of external actuation of the actuation ram, the switch contact(s) can be mechanically actuated, a strap being provided as securing means to mechanically secure the actuator to the housing of the switching device, which strap can be slid over at least part of the actuator and at least part of the housing of the switching device. | 12-31-2015 |
| 20160189894 | LIMIT SWITCH - One aspect of the present invention provides a limit switch that is returned to an original position even if a turning angle of a turning lever becomes 90 degrees. In a section perpendicular to a turning shaft, a cam is formed such that a whole contact surface of the cam with a cam receiver is located on a side of the cam receiver with respect to a shaft center of the turning shaft when the external force does not act on the turning lever. | 06-30-2016 |
