US3643046A - Multiple contact snap action slide switch - Google Patents

Multiple contact snap action slide switch Download PDF

Info

Publication number
US3643046A
US3643046A US885873A US3643046DA US3643046A US 3643046 A US3643046 A US 3643046A US 885873 A US885873 A US 885873A US 3643046D A US3643046D A US 3643046DA US 3643046 A US3643046 A US 3643046A
Authority
US
United States
Prior art keywords
slider
contactor assembly
housing
contactor
driver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US885873A
Other languages
English (en)
Inventor
John Zdanys Jr
William L Kelver Jr
Norman C Weingart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CTS Corp
Original Assignee
CTS Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CTS Corp filed Critical CTS Corp
Application granted granted Critical
Publication of US3643046A publication Critical patent/US3643046A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/16—Driving mechanisms
    • H01H15/18—Driving mechanisms acting with snap action

Definitions

  • a slider extends out- I wardly through a slot in a housing containing the contacts and v has legs extending over the ends of a spring seated in the contactor assembly thereby biasing the contactor assembly to V 1 move with the slider.
  • Projections on the contactor assembly engage notches on the housing to position the contactor assembly in engagement with a selected discrete contact and the common contact and to restrain the contactor assembly from movement with the slider.
  • Movement of the slider relative to the contactor assembly compreses the spring and moves a cam depending from the slider into engagement with a cam surface on the contactor assembly. Relative movement between the cam and cam surface produces pivoting of the contactor assembly and removal of the projections from the notches permitting the force of the compressed spring to snap the contactor assembly into engagement with another of the discrete contacts.
  • Insufficient contact pressure also contributes to objectionably high contact resistance, i.e., the electrical resistance between the bridging contactor and stationary contact surfaces.
  • Such a structure would be desirable to provide an improved economically producible switch wherein contactor bounce, arcing, burning and contact resistance within the switch housing is substantially eliminated or reduced and yet wherein such switch may be readily and inexpensively fabricated.
  • Another object of the present invention is to provide a new and improved electrical switch having the various desirable features set forth above.
  • Another object of the present invention is to provide a new and improved electrical switch wherein spring means operates to provide fast and crisp movement of a bridging contactor relative to a plurality of stationary contact surfaces.
  • Still another object of the present invention is to provide a snap action switch that is tease proof, i.e., the switch cannot be held in a neutral or center position by carefully controlling or manipulating the switch actuating member.
  • a further object of the present invention is to provide an electrical switch capable of performing a large number of cycles without destruction of the bridging contactor or stationary contacts due to arcing between such contactor and stationary contact surfaces.
  • a still further object of the present invention is to provide a new and improved electrical switch wherein a slider stores energy in a spring upon initial movement and upon further movement releases the energy permitting the spring to rapidly snap a contactor assembly into engagement with contact surfaces.
  • the present invention is concerned with a multiple contact snap action slide switch employing a bridging contactor that selectively engages a common contact and one of a plurality of discrete contacts.
  • a contactor assembly is movable within a housing containing a plurality of discrete contacts and a common contact mounted on a dielectric base.
  • a slider having a handle extending outwardly through a slot in the housing is resiliently connected to the contactor assembly by means of a spring seated in the contactor assembly. Legs of the slider extend over both ends of the spring to bias the contactor assembly to move with said slider.
  • a plurality of notches in the housing cooperate with a projection on the contactor assembly to restrain the contactor from moving with initial movement of the slider. Movement of the slider relative to the contactor assembly compresses the spring and moves a cam depending from the slider into engagement with a cam surface on the contactor assembly.
  • the cam moves on the cam surface, the contactor assembly pivots on the bridging contactor until the projection is removed from the notch, at which time the compressed spring snaps the contactor assembly into engagement with another of the discrete contacts.
  • FIG. 1 is an isometric view of an electrical switch control embodying the present invention
  • FIG. 2 is an exploded view of the control shown in FIG. 1;
  • FIG. 3 is a sectional view taken along line Ill-III of FIG. 1;
  • FIG. 4 is a sectional view taken along line IV-IV of FIG- 3, assuming FIG. 3 to be shown in full;
  • FIGS. 5 and 6 are fragmentary sectional views taken along line V-V of FIG. '4, assuming FIG. 4 to be shown in full, with parts broken away to illustrate the relative positions'of the switch parts during operation.
  • an electrical switch is generally indicated at 10 having a housing 11 comprising a plurality of walls including a dielectricbase 12 and a metal cover 13.
  • Tabs 14 extend from the walls-of thev cover l3 and are folded over the dielectric base 12 to secure the base 12 to the cover 13.
  • the cover 13 is provided with restraining means comprising a plurality of pairs of notches 15, 15a, 15b, whose function will be described later.
  • the switch 10 is provided with an operating member of slider 16 having control operating means in the form of a handle 17.
  • the cover 13 is provided with an opening in the form of an elongated slot 18 through which the handle 17 extends.
  • the slider 16 is preferably made of a one piece suitable dielectric material, however, the handle 17 could be made separately and secured to the main body of the slider 16.
  • a pair of legs 19 depend from the slider 16 into engagement with the dielectric base 12.
  • a shoulder 21 extending around the handle 17 slidably engages the cover 13 adjacent the slot 18. The legs 19 and shoulder 21 serve to prevent the slider 16 from rocking when the handle 17 is moved longitudinally in the slot 18.
  • a cam 22 depends downwardly from the slider 16 on each side of a plane passing through the legs 19. Each cam 22 comprises downwardly converging cam surfaces 23.
  • An apertured detent spring 24 is disposed on the slider around the shoulder 21.
  • a contact track or common contact 27 and a plurality of discrete contacts 28 are positioned on the dielectric base 12.
  • Each discrete contact 28 is electricallysecured to a terminal 26 extending outwardly of the housing 11 for connection toan electrical circuit.
  • the discrete contact '28 extends through the dielectric base 12, passes through a hole in the terminal 26 and is deformed over the terminal 26 to secure the discrete contact 28 to the tenninal 26.
  • the common contact 27 formed with one end comprising an integral terminal 29 passing through an opening in the base 12, extends outwardly of the housing 11 for connection to an electrical circuit.
  • FIG. 5 the other end of the common contact 27 is shown passing through an opening in the base 12 and folded over the base 12 to secure the common contact 27 to the base 12.
  • a contactor assembly 30 comprising a driver 31, preferably made of a suitable dielectric material, and a conductive bridging contactor 32, is positioned within the housing engaging the common contact 27 and selectively engaging one of the discrete contacts 28 to establish a closed circuit therebetween.
  • the bridging contactor 32 is provided with an opening 33 adapted to receive an extension 34 (see FIG. 4) depending from the driver 31.
  • the arms 32a of the contactor bias the opening 33 into engagement with the extension 34.
  • the resilient force of the bridging contactor 32 is sufficient to maintain engagement of extension 34 in opening 33 and constrain the bridging contactor 32 to move with the driver 31, however, the contactor 32 may be additionally secured in any suitable manner, e.g., the end portion of extension 34 could be deformed over the portion of the contactor 32 surrounding opening 33.
  • the driver 31 is provided with a groove 36 which seats a resilient means in the form of a spring 37.
  • a channel 38 is provided with outwardly diverging tapered end surfaces 39 providing cam surfaces for cooperating with cams 22 on the slider 16.
  • Projections 41 extend upwardly from the driver 31 for engagement in one of the pair of notches 15, 15a, 15b, 15c of cover 13.
  • the resilient force of the bridging contactor 32 biases the projections 41 into one of the pair of notches 15, 15a, 15b, 15c.
  • Switch 10 is assembled with the legs 19 of the slider 16 positioned over the ends of the spring 37. The interaction of the spring 37 with the legs 19 resiliently biases the driver 31 to move with the slider 16. Since the driver 31 is restrained from movement due to engagement of projections 41 in one of the pair of notches 15, 15a, 15b, 15c, before movement of the driver 31 can occur the projections 41 must be disengaged from one of the pair of notches 15, 15a, 15b, 150.
  • cams 22 against cam surfaces 39 provides releasing means to disengage projections 41 from notches 15, 15a, 15 b, 150. Since the contactor assembly 30 is restrained from moving with the slider 16 while projections 41 are positioned in one of the pair of notches 15, 15a, 15b, 15c,
  • the spring 37 permits relative movement between the contac-' tor assembly 30 and the slider 16. During such relative movement the spring 37 will be compressed by one ofthe legs 19.
  • FIG. 5 shows the position of the various elements of the switch after initial movement of the slider 16 in the direction of the arrow. Since the driver 31 is restrained from moving with the slider 16 due to engagement of projections 41 in notches 150, such movement produces relative movement between the driver 31 and the slider 16. As is apparent the detent spring 24, constrained to move with the slider 16, has moved so as to disengage the detents 25 from notches a. One of the legs 19 of the slider 16 has compressed the spring 37 thereby biasing the contactor assembly 30 to move with the slider 16. As shown in FIG. 5 one of the earns 22 depending from the slider 16 abuts the cam surface 39 of the channel 38. As shown in FIG.
  • FIG. 6 shows the switch 10 just prior to movement of the contactor assembly 30 into engagement with an adjacent discrete contact 28. Additional movement of the slider 16 from its position in FIG. 6 will start movement of the detents 25 into engagement in the notches 15b adjacent to the notches Such additional movement of the slider 16 permits the contactor assembly 30 to pivot sufficiently to remove the projections 41 from notches 15a at which time the force built up in the compressed spring 37 will snap the contactor assembly 30 into engagement with the next adjacent discrete contact 28 and maintain contact with the common contact 27. It is readily apparent that the bridging contact 32 will remain in contact with discrete contact 28 until the projections 41 are removed from the notches 15a whereupon the bridging contactor 32 moves rapidly into engagement with the next adjacent discrete contact 28.
  • Each pair of notches 15, 15a, 15b, 15c corresponds to one of the discrete contacts 28 so as to ensure positioning the bridging contactor 32 in engagement with one of the discrete contacts 28 when the projections 41 are engaged in the corresponding pair of notches 15, 15a, 15b, 15c
  • the switch 10 Since the detents 25 on the detent spring 24 are moving into the adjacent notches 15b as the projections 41 on the contactorassembly move out of the notches 150, the switch 10 is tease proof since the slider 16 cannot be held so as to hold the bridging contactor 32 in a neutral or center position. Also in accord with the present invention, as the slider moves from one switch position to another switch position and pivots the contactor assembly to remove the projections 41 from the notches 15a, the contactor assembly is forced downwardly.
  • Such downward movement of the contactor assembly increases the contact pressure of the arms 32a of the bridging contactor against the pair of discrete contactsand moves the contact areas between the arms 32a of the bridging contactor and the pair of discrete contacts outwardly before the bridging contactor starts to' move and break the circuit.
  • This shift or wiping of the contact areas before breaking assures long life of the switch because any small degree of arcing and burning of the contacts and arms 32a does not affect or cause an increase in contact resistance between the arms 32a and the contacts after many operations ofthe switch.
  • the operation of the switch 10 has been described for a movement of the slider 16 in a direction from right to left in FIGS. 5 and 6, however, it is to be understood that the same principles of operation apply when the slider 16 is moved from left to right in FIGS. 5 and 6. It is to be noted that while four discrete contacts 28 are shown the specific number of positions does not affect the motion from one position to an adjacent position. Thus it is seen that the invention provides a slide switch 10 with snap action motion of a contactor 32 between multiple positions in selective engagement with a common contact 27 and one of a plurality of discrete contacts 28.
  • a multiple contact slide switch comprising a housing having a plurality of walls, said housing having an opening extending through one of said walls, a plurality of discrete contacts mounted within said housing, a contactor assembly movable within said housing for selectively engaging two of said discrete contacts to establish a closed circuit therebetween, a slider having a handle extending outwardly through said opening, resilient means biasing said contactor assembly to move with said slider, said resilient means permitting relative movement between the contactor assembly and the slider, restraining means releasably maintaining said contactor assembly positioned in engagement with said two of said discrete contacts, and releasing means whereby a predetermined movement of said slider relative to said contactor assembly actuates said releasing means and releases said contactor assembly from said restraining means thereby permitting said resilient means to move said contactor assembly to a position in engagement with another two of said discrete contacts at least one of which is different from said first two, said releasing means comprising a pair of first cam surfaces and a pair of second cam surfaces, one of said slider and said
  • said restraining means comprises a plurality of notches in said housing, a projection on said contactor assembly selectively engages one of said notches.
  • said contactor assembly comprises a driver having a groove, and a conductive contactor positioned on said driver, said resilient means being a spring seated in said groove, a pair of legs on said slider extend over the ends of said groove for compressing said spring upon relative movement between said driver and said slider when said projection is positioned in one of the notches.
  • a multiple contact slide switch comprising a housing, a plurality of discrete contacts mounted within said housing, a contactor assembly movable within said housing engaging said contact track and selectively engaging two of said discrete contacts to establish a closed circuit therebetween, a slider mounted for movement relative to said contactor assembly, control operating means for moving said slider relative to said contactor assembly, resilient means for biasing said contactor assembly to move with said slider, said resilient means permitting relative movement between the contactor assembly and the slider, restraining means for releasably maintaining said contactor assembly positioned in engagement with two of said discrete contacts, and releasing means for releasing said contactor assembly from said restraining means upon a predetermined movement of said slider relative to said contactor assembly, said releasing means comprising a cam having a pair of first cam surfaces on one of said slider and said contactor assembly and a pair of second cam surfaces on the other of said slider and said contactor assembly whereby said predeter mined movement causes one of said first cam surfaces to engage one of said second cam surfaces and move relative thereto,
  • said restraining means comprises a plurality of notches in said housing, a projection on said contactor assembly selectively engages one of said notches.
  • said contactor assembly comprises a driver having a groove, and a conductive contactor positioned on said driver, said resilient means being a spring seated in said groove, a pair of legs on said slider extend over the ends of said groove for compressing said spring upon relative movement between said driver and said slider when said projection is positioned in one of the notches.
  • a multiple contact slide switch comprising a housing having a plurality of walls, said housing having a slot extending through one of said walls, a slider having a handle extending outwardly through said slot, a plurality of discrete contacts positioned within said housing, a contactor assembly movable within said housing for selectively engaging two of said discrete contacts to establish a closed circuit therebetween, a
  • said spring biasing said contactor assembly to move with said slider, said spring permitting relative movement between the contactor assembly and the slider, restraining means releasably maintaining said contactor assembly positioned in engagement with said two of said discrete contacts, a pair of first cam surfaces on said contactor assembly, a pair of second cam surfaces on said slider whereby a predetermined movement of said slider relative to said contactor assembly causes one of said first cam surfaces and one of said second cam surfaces to matingly engage and release said contactor assembly from said restraining means thereby permitting said spring to move said contactor assembly into engagement with another of said discrete contacts, said contactor assembly having a channel formed therein having upwardly diverging tapered end surfaces defining said first cam surfaces and said slider having a depending cam having downwardly converging tapered surfaces defining said second cam surfaces, said cam being positioned in said channel.
  • a snap action multiple contact slide switch comprising a housing having a plurality of walls, said housing having a slot extending through one of said walls, a plurality of discrete contacts mounted within said housing, a terminal electrically connected to each of said discrete contacts, said terminals extending outwardly from said housing for connection to an electrical circuit, a contactor assembly movable within said housing for selectively engaging two of said discrete contacts to establish a closed circuit therebetween, a plurality of notches in said housing, a projection on said contactor assembly engaging one of said notches to maintain said-contactor assembly in engagement with the two discrete contacts, a slider having a handle extending outwardly of said housing through said slot, a spring biasing said contactor assembly to move with said slider, said spring permitting relative movement between said slider and said contactor assembly, engagement of said projection in said notchreleasably restraining said contactor assembly against movement with said slider, a first cam surface on said contactor assembly, a second cam surface on said slider whereby a predetermined movement of said slider
  • said contactor assembly comprises a driver and a conductive contactor, movement of said cam surfaces relative to one anotherpivoting said driver on the conductive contactor and releasing said projection from said notch.
  • a multiple contact slide switch comprising a housing, a plurality of discrete contacts mounted within said housing, a contactor assembly movable within said housing selectively engaging two of said discrete :contacts to establish a closed circuit therebetween, a slider mounted for movement relative to said contactor assembly, control operating means for moving said slider, resilient means for permitting relative movement between the contactor assembly and the slider, restraining means for releasably maintaining said contactor assembly positioned in engagement with one of said discrete contacts, and releasing means whereby a predetermined movement of said slider relative to said contactor assembly actuates said releasing means and releases said contactor assembly from said restraining means, said releasing means comprising a pair of first cam surfaces and a pair of second cam surfaces, one of said slider and said contactor as sembly having a depending cam having converging tapered surfaces defining said pair of first cam surfaces, the other of said slider and said contactor assembly having a channel formed therein having end surfaces defining said second cam surfaces,
  • said contactor assembly comprises a driver having a groove, and a conductive contactor positioned on said driver, said resilient means being a spring seated in said groove, a pair of legs on said slider extend over the ends of said groove for compressing said spring upon relative movement between said driver and said slider when said projection is positioned in one of the notches.

Landscapes

  • Slide Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
US885873A 1969-12-17 1969-12-17 Multiple contact snap action slide switch Expired - Lifetime US3643046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88587369A 1969-12-17 1969-12-17

Publications (1)

Publication Number Publication Date
US3643046A true US3643046A (en) 1972-02-15

Family

ID=25387874

Family Applications (1)

Application Number Title Priority Date Filing Date
US885873A Expired - Lifetime US3643046A (en) 1969-12-17 1969-12-17 Multiple contact snap action slide switch

Country Status (6)

Country Link
US (1) US3643046A (fr)
JP (1) JPS5130675B1 (fr)
CA (1) CA928751A (fr)
DE (1) DE2062338A1 (fr)
FR (1) FR2072875A5 (fr)
GB (1) GB1340188A (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000383A (en) * 1975-06-20 1976-12-28 Amp Incorporated Rocker switch having slidable contact carriage biased by positive detent structure
US4022994A (en) * 1975-05-28 1977-05-10 Indak Manufacturing Corporation Slide action electrical switches having contact detenting structure
US4075441A (en) * 1975-04-07 1978-02-21 U.S. Philips Corporation Slide switch having resilient movable contact arm twisted to provide efficient electrical connection
US4210791A (en) * 1978-12-26 1980-07-01 Carlingswitch, Inc. Slide switch
US4311885A (en) * 1980-08-27 1982-01-19 Amf Incorporated Snap action slide switch
US4324957A (en) * 1980-08-18 1982-04-13 Stackpole Components Company Slide switch
US4352966A (en) * 1980-02-29 1982-10-05 Cts Corporation Slide switch
US4529851A (en) * 1983-06-30 1985-07-16 Cts Corporation Machine insertable miniature dip switch
US4620077A (en) * 1985-02-19 1986-10-28 Cts Corporation Integral switch connector with remote actuator
US6597796B2 (en) * 2001-11-09 2003-07-22 Chao-Chih Chang Microphone with a variable resistance switch
US20050058308A1 (en) * 2003-09-15 2005-03-17 Chao-Chih Chang Switching unit for a microphone
US20070205089A1 (en) * 2006-02-23 2007-09-06 Omron Corporation Safety switch
WO2008027725A2 (fr) * 2006-09-01 2008-03-06 J.S.Karaoke Dispositif de karaoké avec commande de mixage, d'écho et de volume
US20080070213A1 (en) * 2006-09-01 2008-03-20 Jack Strauser Karaoke device with integrated mixing, echo and volume control
USD822623S1 (en) * 2017-02-09 2018-07-10 Jeffrey Baldwin Toggle switch cover

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2186718B1 (fr) * 1972-05-29 1978-03-03 Hakko Electric O Ltd

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1600127A (en) * 1921-05-10 1926-09-14 Arrow Electric Co Push switch
US2428832A (en) * 1943-06-07 1947-10-14 Cutler Hammer Inc Circuit controlling device
US3035134A (en) * 1957-03-21 1962-05-15 Cutler Hammer Inc Electric switches
US3333074A (en) * 1966-03-16 1967-07-25 Cutler Hammer Inc Positive action switches
US3339032A (en) * 1966-03-16 1967-08-29 Cutler Hammer Inc Positive action switches with improved sliding contact supporting rail structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1600127A (en) * 1921-05-10 1926-09-14 Arrow Electric Co Push switch
US2428832A (en) * 1943-06-07 1947-10-14 Cutler Hammer Inc Circuit controlling device
US3035134A (en) * 1957-03-21 1962-05-15 Cutler Hammer Inc Electric switches
US3333074A (en) * 1966-03-16 1967-07-25 Cutler Hammer Inc Positive action switches
US3339032A (en) * 1966-03-16 1967-08-29 Cutler Hammer Inc Positive action switches with improved sliding contact supporting rail structure

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075441A (en) * 1975-04-07 1978-02-21 U.S. Philips Corporation Slide switch having resilient movable contact arm twisted to provide efficient electrical connection
US4022994A (en) * 1975-05-28 1977-05-10 Indak Manufacturing Corporation Slide action electrical switches having contact detenting structure
US4000383A (en) * 1975-06-20 1976-12-28 Amp Incorporated Rocker switch having slidable contact carriage biased by positive detent structure
US4210791A (en) * 1978-12-26 1980-07-01 Carlingswitch, Inc. Slide switch
US4352966A (en) * 1980-02-29 1982-10-05 Cts Corporation Slide switch
US4324957A (en) * 1980-08-18 1982-04-13 Stackpole Components Company Slide switch
US4311885A (en) * 1980-08-27 1982-01-19 Amf Incorporated Snap action slide switch
US4529851A (en) * 1983-06-30 1985-07-16 Cts Corporation Machine insertable miniature dip switch
US4620077A (en) * 1985-02-19 1986-10-28 Cts Corporation Integral switch connector with remote actuator
US6597796B2 (en) * 2001-11-09 2003-07-22 Chao-Chih Chang Microphone with a variable resistance switch
US20050058308A1 (en) * 2003-09-15 2005-03-17 Chao-Chih Chang Switching unit for a microphone
US7203330B2 (en) * 2003-09-15 2007-04-10 Taiwan Carol Electronics Co. Ltd. Switching unit for a microphone
US20070205089A1 (en) * 2006-02-23 2007-09-06 Omron Corporation Safety switch
US7456368B2 (en) * 2006-02-23 2008-11-25 Omron Corporation Safety switch
WO2008027725A2 (fr) * 2006-09-01 2008-03-06 J.S.Karaoke Dispositif de karaoké avec commande de mixage, d'écho et de volume
US20080070213A1 (en) * 2006-09-01 2008-03-20 Jack Strauser Karaoke device with integrated mixing, echo and volume control
US20080070214A1 (en) * 2006-09-01 2008-03-20 J. S. Karaoke, Llc Karaoke device with integrated mixing, echo and volume control
WO2008027725A3 (fr) * 2006-09-01 2008-12-24 J S Karaoke Dispositif de karaoké avec commande de mixage, d'écho et de volume
US8160489B2 (en) * 2006-09-01 2012-04-17 Jack Strauser Karaoke device with integrated mixing, echo and volume control
US8897693B1 (en) 2006-09-01 2014-11-25 Dok Solution Llc Karaoke device with integrated mixing, echo and volume control
USD822623S1 (en) * 2017-02-09 2018-07-10 Jeffrey Baldwin Toggle switch cover

Also Published As

Publication number Publication date
CA928751A (en) 1973-06-19
GB1340188A (en) 1973-12-12
JPS5130675B1 (fr) 1976-09-02
DE2062338A1 (de) 1971-06-24
FR2072875A5 (fr) 1971-09-24

Similar Documents

Publication Publication Date Title
US3643046A (en) Multiple contact snap action slide switch
US4272662A (en) Toggle switch with shaped wire spring contact
US4506119A (en) Snap action slide switch with wiping action
US4095070A (en) Miniature pushbutton switch
US3529109A (en) Multiple circuit control switch with guide stops for limiting the vertical travel of a springlike movable contact
US3415962A (en) Miniature precision snap action switch with one-piece stressed blade construction
US3983355A (en) Switching apparatus
US2488670A (en) Electric switch
US3622934A (en) Variable resistor of sliding type with switch activated by slider
US4704503A (en) Slide-action switch with movable contact lifting means
GB1558752A (en) Lockale leveroperated device
US3958090A (en) Miniature switch assembly
US3035134A (en) Electric switches
US3294932A (en) Wiping contact switch
US5120922A (en) Momentary pushbutton slide switch
US3869590A (en) Double-pole tool handle switch
US3535478A (en) Multicircuit electrical switches
US3671693A (en) Rocker switch
US3196220A (en) Three position electric switch with aligned contact bearing surfaces
GB957644A (en) Improvements in and relating to electric switches
US3787653A (en) Electrical switch assembly
US3546402A (en) Sliding contacts for push button switches
US3699292A (en) Slidable contact member for minature switch
US3555213A (en) Cross bar slide selector switch
US3378663A (en) Pushbutton switch with improved guide means