序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 自调整盖开关 CN96108216.X 1996-06-14 CN1152048A 1997-06-18 凯尼恩A·哈普克; 戴维斯M·豪伊; 斯潘塞C·尚茨
一种自调整盖开关,作为一种型式洗衣机可通过滑动结合件把开关连接到盖,滑动接合件则由受弹簧偏压结合一起的内啮合、带齿的组成,开始关闭洗衣机盖时,带齿板彼此相对滑动,以便当盖被关闭时正好可促动开关。这样,盖的限定和可测示的升高可退动开关,从而在要接近洗衣机桷前使洗衣机停止转动。
2 双保险恒温器 CN95108506.9 1995-06-09 CN1128874A 1996-08-14 武田秀昭
发明的目的在于提供一种内装即使接点融合也能保护整个电路的保护电路的恒温器。这种恒温器的结构是这样的:在可因热应动件而导致变形的弹性板两端上设置可动接点,在与两可动接点对应的位置设固定接点,设置与各固定接点对应的外部端子。使弹性体一方的可动接点侧的弹性强度比另一方的可动接点侧的弹性强度弱。通常情况下,根据热应件的变形,弹性强度弱侧的可动接点开闭,该接点万一融合,则开闭另一方的可动接点。在最佳实施例中,还设置有用于使一方的可动接点动作的第二热应动件。
3 双保险恒温器 CN95108506.9 1995-06-09 CN1095038C 2002-11-27 武田秀昭
发明的目的在于提供一种内装即使接点融合也能保护整个电路的保护电路的恒温器。这种恒温器的结构是这样的:在可因热应动件而导致变形的弹性板两端上设置可动接点,在与两可动接点对应的位置设固定接点,设置与各固定接点对应的外部端子。使弹性体一方的可动接点侧的弹性强度比另一方的可动接点侧的弹性强度弱。通常情况下,根据热应件的变形,弹性强度弱侧的可动接点开闭,该接点万一融合,则开闭另一方的可动接点。在最佳实施例中,还设置有用于使一方的可动接点动作的第二热应动件。
4 接触器安全组合 CN96198278.0 1996-11-26 CN1063574C 2001-03-21 欧文·弗莱尔; 理查德·弗赖塔格
一种接触器安全组合,其由两个接触器(1,3)和一个耦合在这两个接触器之间的机械联部件(5)组成,在此安全组合中可以采用商业上通用的任意尺寸的接触器,也就是说也可连接大功率的用电器。与此同时该技术解决方案可以省去常规联锁方式所应用的第三只接触器。
5 接触器安全组合 CN96198278.0 1996-11-26 CN1202267A 1998-12-16 欧文·弗莱尔; 理查德·弗赖塔格
一种接触器安全组合,其由两个接触器(1,3)和一个耦合在这两个接触器之间的机械联部件(5)组成,在此安全组合中可以采用商业上通用的任意尺寸的接触器,也就是说也可连接大功率的用电器。与此同时该技术解决方案可以省去常规联锁方式所应用的第三只接触器。
6 接触 CN88103874 1988-06-22 CN1033337A 1989-06-07 赫尔穆特·莱默尔; 约塞夫·里斯陶思
一种带外壳接触器,外壳中朝安装面设置一电磁系统、间隔安装面设一可由电磁系统控制的触头系统,其中针对每相设置热脱扣器和电磁脱扣器,它们借助控制装置对触头系统作用,以提高电路的安全度。触头系统设有对各相以及电磁系统线圈接线的辅助触头、热脱扣器、电磁脱扣器以及控制装置是这样布置和形成的,就是使辅助触头在脱扣时被强制分开并在触头系统的主触头分开时才能重新接通。
7 Contactor safety interlock mechanism US77905 1998-06-04 US6054656A 2000-04-25 Erwin Flierl; Richard Freitag
A contactor safety combination includes two contactors and a mechanical interlocking module coupled between them. It is possible to use conventional contactors of any size, i.e., even high-capacity loads are switchable with the contactor safety combination of the present invention. At the same time, this design approach dispenses with a third contactor conventionally used for the interlocking.
8 Lid switch with contact failure detection US605569 1996-02-29 US5682772A 1997-11-04 Kenyon A. Hapke; Spencer C. Schantz; David M. Howie
A switch for a washing machine lid or the like detects welded load contact through an auxiliary set of contacts which shunt the load when the first set of contacts should be open and thus provide a high-current path when those contacts are welded. A series fusible link mechanically activates a set of disconnect contacts which disconnects the washing machine motor. The resulting switch has a single operator that may be collapsible to be self-adjusting permitting the switch to snap in place without the need for a separate adjustment step in the manufacturing process.
9 Self adjusting lid switch US569467 1995-12-08 US5691520A 1997-11-25 Kenyon A. Hapke; David M. Howie; Spencer C. Schantz
A self-adjusting lid switch for a type washing machine connects the switch to the lid by means of a slip joint composed of intermeshing toothed plates spring biased together. The first time the washing lid is closed the plates slip with respect to each other so that the switch is just actuated when the lid is closed. In this way a limited and predictable lifting of the lid de-actuates the switch so as to stop the washing machine before access to the washing machine tub is obtained.
10 Double safety thermostat having movable contacts disposed in both ends of a resilient plate US474317 1995-06-07 US5659285A 1997-08-19 Hideaki Takeda
An object of the present invention is to provide a thermostat including a protection circuit for protecting a circuit even if contacts of the thermostat are welded. Movable contacts are disposed in both ends of a resilient plate deformed by a thermally responsive member and stationary contacts are disposed to correspond to both the movable contacts. External terminals are disposed to correspond to the stationary contacts. The strength of the spring on the side of one movable contact of the resilient member is made weaker than the strength of the spring on the side of the other movable contact. Normally, the movable contact having the weaker strength of the spring is opened and closed in response to the deformation of the thermally responsive member and if this contact are welded, the other movable contact is opened and closed. In the preferred embodiment, the second thermally responsive member for operating one movable contact is provided.
11 Electric switch with welded contact sensor lockout US84385 1993-06-29 US5304753A 1994-04-19 Timothy L. Parrish; Tony O. Woodard
A plunger operated switch has a pair of movable contacts on a movable contact carrier bridged by a secondary contact supported on a pushbutton operator member which is biased apart from the contact carrier. Depression of the pushbutton operator for the plunger assembly moves the primary movable contacts into bridging engagement with the stationary contacts through the secondary contact member. In the event the primary movable contacts weld to the stationary contacts and an operating force is removed from the plunger operator, a spring biases the secondary contact away from the primary movable contacts to open the bridging relationship therebetween and open the circuit controlled by the switch. A pair of normally closed contacts are arranged for operation by the pushbutton operator so that the contacts open before the main contacts close and close after the main contacts open, rendering them particularly suitable for use as dynamic braking contacts in a motor control application. Insulating means are provided between the primary movable contacts and the secondary bridging contact to prevent reclosure thereof once the secondary contact is separated from the primary movable contacts.
12 Fail safe switch US934790 1992-08-24 US5237302A 1993-08-17 Timothy S. Harris
A free-wheeling safety switch is intended for controlling a power supply for a motor and includes a linked single-throw conductor and a double-throw conductor. A fusible link is located between the poles of the conductors. A connection between the double-throw conductor and the single-throw conductor switches the conductors sequentially such that the double-throw conductor switches between its normally closed position and its switched position prior to the single-throw conductor shifting from its normally-off position to its on position. The single-throw conductor is switched from its on position to its off position before the double throw conductor switches to its normally closed position. The power supply is electrically connected to the motor only when the double-throw conductor is in its switched position and the single-throw conductor is in its on position.
13 Fail-safe switch US21196 1998-02-10 US6028274A 2000-02-22 Timothy S. Harris
A safety switch with a contactor structure including first and second contactor contacts electrically connected to each other. The switch has an "on" state in which first and second terminal contacts are contacted with the first and second contactor contacts, respectively, to thereby electrically connect the terminal contacts therebetween, and an "off" state in which the terminal contacts are not electrically connected to each other by the contactor structure, whereby current cannot flow between the terminal contacts. The switch also has a cycle control mechanism with a normal-state in which the switch is free to cycle between the "on" and "off" states, and a welded-state in which one of the terminal contacts is welded to one of the contactor contacts and the other of the contactor contacts is separated from the other of the terminal contacts. When the cycle control mechanism is in the welded state, the switch is prevented from moving from the "off" state to the "on" state.
14 Contactor and/or circuit breaker US272289 1988-11-17 US4931757A 1990-06-05 Helmut Lemmer; Josef Risthaus
A contactor which includes a contact bridge holder for opening and closing a first plurality of contacts of an electric circuit, a second plurality of additional contacts for each electrical phase and a coil connection of an associated magnetic system, respectively; the magnetic system including thermo trippers and magnetic trippers for selectively operating the first plurality of contacts, three actuation members each mounted for pivoting movement, the first of the actuation members being connected to a slider which is in turn connected to the second plurality of contacts, the second actuation member being operative by the magnetic tripper, the third actuation member being operative by the thermal tripper, the first and second actuation members having end portions which are normally in engagement when the trippers are not actuated and the second plurality of contacts are open, and the normally engaging end portions of the first and second actuating members are moved out of engagement upon the operation of either of the trippers resulting in operation of the slider and the opening of the second plurality of contacts.
15 Safety-disconnect power tool switch US891898 1978-03-30 US4149052A 1979-04-10 Earl T. Piber
An electric power tool mounted switch that provides safety-disconnect under contact-weld conditions, and is of the manual close, manual open, or momentary (spring return), double-pole type having an actuator of the toggle lever, trigger or other suitable type. The operating member actuates one end of an intermediate lever normally pivoted at its other end on a slidable safety-disconnect bar that is normally held to the base by a first spring-loaded detent. The intermediate lever is coupled and pivotally mounted at its midportion to a slidable contact carrier through a firing spring and positive action mechanism. The contact carrier slides along and is held to the safety-disconnect bar by a second spring-loaded detent in either its contacts closed or contacts open position. In normal operation, upon movement of the actuator to "on", one firing spring is compressed and follow-up positive action causes the second detent to release allowing the contact carrier to snap over and close the contacts, and similarly to reopen the contacts under manual control or momentary return spring force and the other firing spring and follow-up positive action. Should one or more contacts weld closed so that the contact carrier cannot return, the intermediate lever compresses the other firing spring whereupon follow-up positive action releases the first detent allowing the safety-disconnect bar to trip and snap over and force out a component such as a kick-out spring on a stationary contact that causes the circuit to open. This helical, compressed, kick-out spring normally holds a close-first open-last leaf spring stationary contact against one movable contact but when kicked out, allows the stationary contact to flex open under its inherent bias thereby to interrupt the power circuit to the tool.
16 Dielectric heating apparatus US3526739D 1968-10-25 US3526739A 1970-09-01 GILL GILBERT M
17 Double safety thermostat JP12862594 1994-06-10 JP2791383B2 1998-08-27 TAKEDA HIDEAKI
18 Failsafe thermostat JP12862594 1994-06-10 JPH07335103A 1995-12-22 TAKEDA HIDEAKI
PURPOSE: To protect a circuit even if a contact of a thermostat is welded by separating one movable contact from a fixed contact in an elastic plate having a pair of movable contacts. CONSTITUTION: When temperature is low, a fixed contact 1b is in contact with a movable contact 6 and a fixed contact 2b is in contact with a movable contact 7, and current flows through a terminal 1a, a fixed plate 1, the fixed contact 1b, the movable contact 6, an elastic plate 4, the movable contact 7, the fixed contact 2b, a fixed plate 2, and a terminal 2a in order. When temperature is raised higher than a set temperature, the curvature of the shape of a bimetal plate 8 fixed to the elastic plate 2 is reversely turned, and since the spring power of the elastic plate 4 is lower on the movable contact 6 side than that on the movable contact 7 side, the elastic plate 4 on the movable contact 6 side deforms and the movable contact 6 separates from the fixed contact 1b to open a circuit. When temperature becomes lower than the set temperature, the elastic plate 4 deforms and the movable contact 6 comes in contact with the fixed contact 1b to close the circuit. Even if the contact of a thermostat is welded, the circuit is surely controlled. COPYRIGHT: (C)1995,JPO
19 Electric switch having mechanism capable of opening circuit caused by welded contact JP17022894 1994-06-29 JPH07169363A 1995-07-04 TEIMOSUII ERU PARITSUSHIYU; TONII OOUEN UTSUDAADO
PURPOSE: To provide an electric circuit having such a secondary contact operating so as to open a circuit closed by the welded primary contact. CONSTITUTION: An electric switch has a pair of moving contacts 18 bridged by a secondary contact 20 arranged through an insulator 24, on a moving contact supporter 16 arranged within a push button operation assembly 10. When the push button operation assembly 10 is pushed, the primary moving contact 18 is moved, and bridged to fixed contacts 14, 15 through the secondary contact 20 to come in contact with it. When the primary moving contact 18 is welded to the contacts 14, 15, and operation force F is removed from the plunger operation assembly 10, a spring 22 is energized so as to separate the secondary contact 20 from the primary moving contact 18, the bridged relation of both contacts is opened, and a circuit to be operated with the switch is opened. When the secondary contact 20 is separated from the primary moving contact 18, the insulator 24 prevents re-closing of them. COPYRIGHT: (C)1995,JPO
20 Electric switch with welded contact sensor lockout EP94109738.8 1994-06-23 EP0632473B1 1999-09-29 Parrish, Timothy Lane; Woodard, Tony Owen
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