Patents Assigned to J. & J. Marquardt
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Patent number: 4286125Abstract: An electric switch comprises a switch housing having a contact arm pivotally mounted on a conductive bearing. The contact arm includes a movable contact which is disposed in the housing to engage with a fixed contact of the housing in one position of the contact arm. It also includes a hook shaped end which engages on a cam surface of a slider portion of an actuating member. The contact arm is loaded by a tension spring which is mounted in the housing so that it is urged in a direction to engage the moving contact thereon with the fixed contact in the housing when the slider, which is moved by the actuating member is moved so as to permit the contact arm to pivot.Type: GrantFiled: September 6, 1979Date of Patent: August 25, 1981Assignee: J & J MarquardtInventors: Alois Schaffeler, Uwe Stratmann
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Patent number: 4277661Abstract: A basic electrical switch comprises a first housing part with a first switch contact mounted therein and a first actuator associated with the first switch contact for actuating it and a second housing having a second switch contact therein and a second actuator connected thereto for actuating the second switch contact and including a snap connection for interconnecting the first and second housings together.Type: GrantFiled: September 6, 1979Date of Patent: July 7, 1981Assignee: J. & J. MarquardtInventor: Axel Riess
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Patent number: 4220835Abstract: An electrical switch, comprises, a casing of a nonconductive material, having first and second spaced apart upstanding supports, with a contact plate of an electrically conductive material having an intermediate spring portion, with an outwardly extending arcuate bulge portion intermediate its length and a bridging member on each side of the spring portion, and an end portion on each end interconnecting the spring portion with at least one end of each bridging member and supported on respective spaced apart supports. The intermediate spring portion is held in an outwardly biased position extending in the direction of the arcuate portion by the contact plate construction, and it bears against an actuating member which may move it in a direction opposite to the bias direction.Type: GrantFiled: September 11, 1978Date of Patent: September 2, 1980Assignee: J. & J. MarquardtInventors: Werner Storz, Siegfried Wolpert, Kuno Futterknecht
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Patent number: 4117286Abstract: The electric switch has an angular movable contact element formed by a pair of angled legs interconnected at a bend, with the outer surface of the bend bearing on a support. A movable contact at the end of one leg of the contact element is engageable with a fixed contact. A spring-loaded swivel member bears against that side of the leg, carrying the movable contact, opposite to the side facing the fixed contact, at a point spaced from the bend, and is operable by a slidable switch actuator movable in a contact element displacement direction. A loading spring has one end engaged in the swivel member and its opposite end engaged in the actuator. The swivel member carries a movable contact or is formed with a contact surface which, responsive to movement of the actuator in a switch closing direction, is engageable with an additional fixed contact of the switch.Type: GrantFiled: June 7, 1976Date of Patent: September 26, 1978Assignee: J. & J. MarquardtInventors: Arnold Methner, Reinhold Mesle
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Patent number: 4081632Abstract: An electrical switch comprises a housing with at least one fixed contact thereon and at least one resilient movable contact which has a fixed end secured on said housing and an opposite movable end with a contact portion which is held by the fixed end in a position spaced from the fixed contact. The housing includes a supporting member located between the movable and fixed ends of the movable contact and on the same side as the fixed contact. The movable contact is engageable by actuating means which includes a rotatable cam which first contacts an intermediate wave-shaped portion to cause an inwardly directed portion of the movable contact to move first into engagement with the support member and to subsequently cause the contact portion to move into engagement with the fixed contact.Type: GrantFiled: October 28, 1975Date of Patent: March 28, 1978Assignee: Firma J. & J. MarquardtInventor: Alois Schaffeler
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Patent number: 4044215Abstract: An electric switch comprises a closed switch housing which is adapted to contain the switch contacts which has a guide bore for guiding a shaft portion of a switch operating member or push button. An operating member lock included an exterior housing portion associated with the switch housing which has a lock guide channel and a lock member bore intercepting the guide channel. The lock member is movable in the bore to engage a lock actuator which is connected to the switch operating member and is displaceable in the lock guide channel. The lock member is engageable with the lock actuator when the switch operating member is in an actuated position in order to lock the lock member and the switch operating member against movement.Type: GrantFiled: March 6, 1975Date of Patent: August 23, 1977Assignee: J. and J. MarquardtInventors: Paul Leibinger, Reinhold Mesle, Arnold Methner, Alfons Steidle
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Patent number: 4035596Abstract: A switch construction comprises a housing which has a base wall and an upstanding side wall with first and second contact terminals arranged in spaced locations in the housing and with one of them bent over on its top so as to form a contact making portion. A spring member has an upper part with one end engaged in a V-shaped bearing on the one contact terminal and has a lower part with a contact arm which is engageable with the contact portion of the other terminal. The upper and lower parts of the spring member are interconnected by a curved bearing portion which is engaged and supported in the housing sidewall. In addition the spring member has an intermediate part of the upper portion which is substantially straight and which is engageable by an extension of an actuation member which is engaged on the housing and confined for movement upwardly and downwardly within predetermined limits.Type: GrantFiled: March 8, 1976Date of Patent: July 12, 1977Assignee: J. & J. MarquardtInventors: Erich Marquardt, Werner Storz, Kuno Futterknecht
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Patent number: 3999024Abstract: An electrical switch comprises at least one fixed contact which is engageable by a movable contact contained on a first arm portion of a movable contact member which also has a second arm portion which is disposed at an angle to the first arm portion. An actuating member is engageable with the movable contact member and is displaceable over the second arm portion to engage the first arm portion and to pivot it in a direction to move the movable contact to engage the fixed contact. First spring means bias the actuating member in a direction toward engagement with the movable contact member and during the movement of the movable contact member the second arm portion is moved in a direction opposite to the direction of the first arm portion to force the first spring means to increase the biasing force thereof. In the closed position of the contact the first spring means may in one embodiment be increased in biasing force and in another embodiment be maintained at the same biasing force as its initial position.Type: GrantFiled: March 17, 1975Date of Patent: December 21, 1976Assignee: J. & J. MarquardtInventor: Ewald Marquardt
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Patent number: 3997745Abstract: The switch is provided with a fixed contact and a movable contact attached to a contact arm which is held by means of a spring in at least one of the portions of said contact arm. The spring and the contact arm are made in one piece to form a bracket-shaped catch element which is pivotally mounted in a bearing in the housing. The spring is stressed at least in the dead center position thereof.Type: GrantFiled: November 29, 1974Date of Patent: December 14, 1976Assignee: Firma J & J MarquardtInventors: Erich Marquardt, Werner Storz
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Patent number: 3996435Abstract: A switch comprises a housing with first and second spaced apart stop members with at least one of them being an electrical contact. A current carrying contact is mounted in the housing so as to project outwardly for connection to an electrical circuit and to extend upwardly inside a cavity of the housing. A two armed swivel member is pivoted over the current carrying contact and a movable contact portion is pivoted on the one arm of the swivel and it has an outer end which is oriented between the two stop members for engagement with a selective one in each operative position. The opposite arm of the swivel member is engaged by a lever which is pivoted in the housing and which is movable by a push button to actuate the switch. The spring is engaged with the movable contact and an extension of the lever member so that in an actuated position it is biased by the spring into engagement with one of the stop members.Type: GrantFiled: October 10, 1975Date of Patent: December 7, 1976Assignee: Firma J. & J. MarquardtInventor: Albert King
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Patent number: 3982086Abstract: An electrical switch, comprises a housing having spaced apart side walls each with a bearing recess which is located above spaced apart fixed contacts. An actuator is guided in the housing between the side walls and moves toward the fixed contacts to move first leg portions of substantially U-shape contact springs to flex these leg portions and pivot intermediate web portions which are pivotal in the bearing recesses and, thereafter, snap second leg portions into engagement with the fixed contacts. The arrangement may include two sets of spaced apart contact members between which the second leg portions of the leaf springs are movable and the first leg portions are preferably pivotally connected between depending feet of the actuating member.Type: GrantFiled: May 8, 1975Date of Patent: September 21, 1976Assignee: Firma J. & J. MarquardtInventors: Erich Marquardt, Werner Storz, Eckehardt Sachs
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Patent number: 3953696Abstract: An actuator comprises a housing having a bore with an opening and having a recess stop surface defined along the bore. A push button actuator is displaceable in the bore and projects through the opening so that it may be moved by hand between a non-actuated position to an actuated position. The push button includes a cross-bore or cavity with a lock bolt movable in the cavity and biased by a spring so that it engages with the stop surface when the push button is in a deactivated position. The housing also has a crossbore or recess containing a release member which has a push button end which is engageable from the exterior of the housing to displace the release member. In the locked deactivated position, the release member is engaged with the locking member so that the displacement thereof forces the locking member against its biasing spring to a position in which it is moved out of engagement with the stop surface so that the push button may be moved to an activated position.Type: GrantFiled: July 12, 1974Date of Patent: April 27, 1976Assignee: J. & J. MarquardtInventors: Christian Reimann, Hugo Weber, Ewald Ueth