公开(公告)号：US3742157A

公开(公告)日：1973-06-26

申请号：US3742157D

申请日：1971-04-16

Applicant: LEMATEX INC

Inventor： LEPOSAVIC W

IPC: B41J5/12 ,  H01H13/702 ,  H01H13/703 ,  H01H13/785 ,  H01H13/80 ,  H01H9/26

CPC classification number: H01H13/785 ,  B41J5/12 ,  H01H13/702 ,  H01H13/703 ,  H01H13/80 ,  H01H2201/004 ,  H01H2201/014 ,  H01H2201/026 ,  H01H2203/018 ,  H01H2203/022 ,  H01H2205/032 ,  H01H2207/022 ,  H01H2209/01 ,  H01H2211/03 ,  H01H2217/024 ,  H01H2221/05 ,  H01H2223/002 ,  H01H2229/008 ,  H01H2229/016 ,  H01H2229/028

Abstract: A multiple switch construction for a keyboard or the like produced as a flat panel embodying laminates of electrical conductors in desired patterns, assembled as stratifications in close proximity and separated by spacers. Individual depressible means operating through resilient members urge movable switch elements into contact with fixed electrical conductors with a rotary, wiping action to insure positive electrical contact.

公开(公告)号：US4804933A

公开(公告)日：1989-02-14

申请号：US176756

申请日：1988-04-01

Applicant: James A. Becker ,  Lawrence F. Freitag ,  Frank W. Kussy

Inventor： James A. Becker ,  Lawrence F. Freitag ,  Frank W. Kussy

IPC: H01H3/30 ,  H01H3/22 ,  H01H3/28 ,  H01H3/52 ,  H01H9/00 ,  H01H9/28 ,  H01H33/40 ,  H01H51/08 ,  H01H3/00

CPC classification number: H01H3/52 ,  H01H2201/014 ,  H01H2300/018 ,  H01H3/227 ,  H01H3/28 ,  H01H3/30 ,  H01H51/082 ,  H01H9/0066 ,  H01H9/282

Abstract: An automatic electric load transfer switch incorporates an over-the-center spring mechanism to operate switch contacts. The spring mechanism has a first position at which the electric load is connected to one electricity source and a second position at which the load is connected to another electricity source. The spring mechanism is driven by a solenoid activated cam shaft. An apparatus is provided for halting the movement of the spring mechanism at a position intermediate the first and second positions at which the load is not connected to either electricity source. The halting apparatus is releasable so that the spring mechanism can continue its movement between the first and second positions.

公开(公告)号：US3600528A

公开(公告)日：1971-08-17

申请号：US3600528D

申请日：1969-09-25

Applicant: LEMATEX CORP

Inventor： LEPOSAVIC WAYNE V

IPC: B41J5/12 ,  H01H13/702 ,  H01H13/703 ,  H01H13/785 ,  H01H13/80 ,  H01H9/26

CPC classification number: H01H13/785 ,  B41J5/12 ,  H01H13/702 ,  H01H13/703 ,  H01H13/80 ,  H01H2201/004 ,  H01H2201/014 ,  H01H2201/026 ,  H01H2203/018 ,  H01H2203/022 ,  H01H2205/032 ,  H01H2207/022 ,  H01H2209/01 ,  H01H2211/03 ,  H01H2217/024 ,  H01H2221/05 ,  H01H2223/002 ,  H01H2229/008 ,  H01H2229/016 ,  H01H2229/028

Abstract: Multiple switches produced as a flat panel embodying the basic principle of laminates of electrical conductors in desired patterns assembled as stratifications in close proximity but separated by spacers and covered by resilient material facilitating momentary pushbutton operation of companion switch elements thereof, the separators isolating companion switch elements of the stratified laminates within switching zones identified by indicia or pushbutton pads on the resilient cover.

Abstract translation: 用于键盘等的多重开关结构，其形成为平板，其以期望的图案的电导体的层叠体为一体，被组装为紧密靠近并由间隔物隔开的分层。 通过弹性构件操作的单独的可压制装置敦促可移动开关元件与固定电导体接触，具有旋转擦拭动作，以确保正电接触。