CA926899A - Electrical limit switch - Google Patents

Electrical limit switch

Info

Publication number: CA926899A
Authority: CA; Canada
Prior art keywords: limit switch; electrical limit; electrical; switch; limit
Prior art date: 1969-07-30
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

Application number

CA087407A

Inventor

L. Dietrich Walter

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.)

Arrow Hart Inc

Original Assignee

Arrow Hart Inc

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.)

1969-07-30

Filing date

1970-07-06

Publication date

1973-05-22

1970-07-06 Application filed by Arrow Hart Inc filed Critical Arrow Hart Inc

1972-07-10 Priority to CA146754A priority Critical patent/CA927885A/en

1973-05-22 Application granted granted Critical

1973-05-22 Publication of CA926899A publication Critical patent/CA926899A/en

Status Expired legal-status Critical Current

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
- H01H15/06—Movable parts; Contacts mounted thereon
- H01H15/10—Operating parts
- H01H15/102—Operating parts comprising cam devices
- H01H15/107—Operating parts comprising cam devices actuating conventional selfcontained microswitches
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
- H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
- H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
- H01H21/285—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift having an operating arm actuated by the movement of the body and mounted on an axis converting its rotating movement into a rectilinear switch activating movement
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
- H01H11/0018—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different operating parts
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
- H01H13/365—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs having a symmetrical configuration

CA087407A 1969-07-30 1970-07-06 Electrical limit switch Expired CA926899A (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA146754A CA927885A (en)	1969-07-30	1972-07-10	Electrical limit switch

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US84600269A	1969-07-30	1969-07-30

Publications (1)

Publication Number	Publication Date
CA926899A true CA926899A (en)	1973-05-22

Family

ID=25296667

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA087407A Expired CA926899A (en)	1969-07-30	1970-07-06	Electrical limit switch

Country Status (3)

Country	Link
US (1)	US3649785A (en)
CA (1)	CA926899A (en)
GB (2)	GB1309459A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3749860A (en) *	1971-12-30	1973-07-31	Allen Bradley Co	Sealed limit switch
US3789177A (en) *	1972-05-26	1974-01-29	Gen Electric	Actuating mechanism for a limit switch having elongated pivotally mounted actuating member
US3867598A (en) *	1973-10-09	1975-02-18	Westinghouse Electric Corp	Control switch
US3983343A (en) *	1975-06-25	1976-09-28	Cutler-Hammer, Inc.	Limit switch operating shaft return spring damping device
JPS5340870A (en) *	1976-09-27	1978-04-13	Matsushita Electric Works Ltd	Electric switch
CA1236506A (en) *	1983-01-12	1988-05-10	Norio Iwakiri	Limit switch assembly
US4746772A (en) *	1986-09-23	1988-05-24	Fisher Controls International, Inc.	Adjustable position indicating apparatus
US4847453A (en) *	1987-11-03	1989-07-11	Square D Company	Limit switch with actuator
IT1248935B (en) *	1990-06-04	1995-02-11	Sin Cros M D S R L	MOBILE CONTACT STRUCTURE, IMPLEMENTED THROUGH A WHEEL, PARTICULARLY DESIGNED FOR ENDOTHERMAL ENGINE SPINTEROGENES
JPH04349316A (en) *	1991-05-24	1992-12-03	Matsushita Electric Ind Co Ltd	Waterproof switch for electronic equipment
CN102956393A (en) *	2011-08-24	2013-03-06	欧姆龙株式会社	Switching device
EA020431B1 (en) *	2011-11-09	2014-11-28	Елена Евгеньевна Кашичкина	Limit switch
FR3011672B1 (en) *	2013-10-04	2018-09-28	Schneider Electric Industries Sas	POSITION SWITCH
JP6316075B2 (en) *	2014-04-15	2018-04-25	アズビル株式会社	Limit switch
EP2966287B1 (en) *	2014-07-07	2019-08-28	Goodrich Actuation Systems Ltd.	Pressure switch for thrust reverser control
US9679733B2 (en) *	2014-10-02	2017-06-13	Cooper Technologies Company	Actuation system for an electrical switching device
US11482389B2 (en)	2018-07-26	2022-10-25	Eaton Intelligent Power Limited	Neutral position limit switch head design with part reduction and improved reliability

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US430054A (en) *		1890-06-10		Johan m
US2328266A (en) *	1941-10-28	1943-08-31	Bliss E W Co	Operating mechanism for switches
US2390365A (en) *	1943-01-02	1945-12-04	Gen Electric	Electric switch
US2752448A (en) *	1951-04-27	1956-06-26	Westinghouse Electric Corp	Switching equipment for compressed air circuit breakers
US3055226A (en) *	1959-10-08	1962-09-25	Square D Co	Overtravel and snap-back control device for limit switch arms
US3252345A (en) *	1963-08-02	1966-05-24	Robertshaw Controls Co	Actuating mechanism and parts therefor or the like
US3244015A (en) *	1964-07-10	1966-04-05	Square D Co	Switch operating mechanism
US3317687A (en) *	1965-04-28	1967-05-02	Allen Bradley Co	Manually resettable switch actuator
US3414693A (en) *	1966-04-29	1968-12-03	Tomkins Johnson Co	Cylinder head limit switch assembly
US3546954A (en) *	1966-07-22	1970-12-15	Buchanan Electrical Prod Corp	Device for actuating a limit control element
US3412223A (en) *	1966-08-01	1968-11-19	Charles A. Schad	Pressure switch
US3517141A (en) *	1967-11-13	1970-06-23	Avis Ind Corp	Limit switch
US3539738A (en) *	1968-11-12	1970-11-10	Gen Electric	Miniature industrial limit switch

1969
- 1969-07-30 US US846002A patent/US3649785A/en not_active Expired - Lifetime
1970
- 1970-07-06 CA CA087407A patent/CA926899A/en not_active Expired
- 1970-07-29 GB GB3668170A patent/GB1309459A/en not_active Expired
- 1970-07-29 GB GB1953672A patent/GB1309460A/en not_active Expired

Also Published As

Publication number	Publication date
GB1309459A (en)	1973-03-14
US3649785A (en)	1972-03-14
GB1309460A (en)	1973-03-14

Publication	Publication Date	Title
CA933557A (en)	1973-09-11	Electrical switch
CA926899A (en)	1973-05-22	Electrical limit switch
CA918717A (en)	1973-01-09	Electrical switch devices
AU1632170A (en)	1971-12-16	Electrical switches
AU1105270A (en)	1971-08-05	Electrical switches
AU1105170A (en)	1971-08-05	Electrical switches
AU1304470A (en)	1971-09-30	Electrical switches
CA927885A (en)	1973-06-05	Electrical limit switch
CA816800A (en)	1969-07-01	Electrical switch
CA831125A (en)	1969-12-30	Electrical switch
CA828272A (en)	1969-11-25	Electrical switch
CA822295A (en)	1969-09-02	Electrical switch
CA816263A (en)	1969-06-24	Electrical switch
CA806771A (en)	1969-02-18	Electrical switch
AU441322B2 (en)	1971-12-02	Electrical switch
AU430468B2 (en)	1971-11-25	Electrical switches
AU449133B2 (en)	1972-01-06	Electrical switches
CA825283A (en)	1969-10-14	Electrical switches
CA814545A (en)	1969-06-03	Electrical switches
AU446438B2 (en)	1972-01-27	Electrical switches
AU446148B2 (en)	1972-01-27	Electrical switches
AU444998B2 (en)	1972-01-27	Electrical switches
AU440805B2 (en)	1971-12-16	Electrical switches
AU429056B2 (en)	1971-09-16	Electrical switches
AU440328B2 (en)	1971-08-12	Electrical switches