ELECTROMAGNETIC CONTACTOR WITH SUPPLEMENTARY SWITCHING DEVICES AND MOUNTING THEREFOR

• US 3,609,604 A
• Filed: 06/17/1970
• Issued: 09/28/1971
• Est. Priority Date: 06/17/1970
• Status: Expired due to Term

• Current Assignee: Cooper Industries (Eaton Corporation PLC.)
• Original Assignee: Harold E. Schleicher
• Inventors: Schleicher, Harold E.
• Primary Examiner(s): Broome, Harold
• Application Number:
  US05/047,082
• Time in Patent Office: 468 Days
• Field of Search: 335/132,197,202 200/166B,166S 337/7
• US Class Current: 335/132
• CPC Class Codes: H01H 50/545 Self-contained, easily replaceable microswitches

Abstract

An electromagnetic switching device made of insulation bodies on which are supported fixed contacts, a movable contact carrier, and electromagnetic operating means. Provision is made on the bodies for the attachment and annexation of supplementary poles and/or auxiliary smaller switches by interengagement and interlocking of the casings with formations that are provided on the main device so that when the bodies of the main device are assembled together they hold the supplementary or auxiliary devices.

Claims

1. A main switching device comprising, housing means made of molded insulation and having at least two parts, fixed and movable contact means mounted within said hoUsing means, means moving said movable contacts, means mounted within said housing means operating said contact-moving means, a supplemental switching device including engageable and disengageable contact means and an insulating casing, means formed integrally with the housing means of the main device interlocking with means formed integrally with the casing of said supplementary device for mounting said supplementary device on the outside of said housing means, and means formed as an integral part of one of said parts of said main device to prevent detachment of the supplementary device from the main device while said housing parts of the main device remain assembled, regardless of the presence or absence of any back or mounting plate.

2. The combination as claimed in claim 1 wherein the interlocking means on the housing means is on one part thereof and another part of said housing means is in overhanging relation to said supplementary device preventing disconnection of the latter from the main device while the parts of the main device remain assembled.

3. The combination as claimed in claim 1 wherein the interlocking means comprise a rib and a channel receiving the rib, and wherein a second part of said housing means is in overhanging relation to said supplementary device preventing disconnection of the latter from the main device while the parts of the main device remain assembled.

4. The combination as claimed in claim 1 wherein the interlocking means comprise a depression in at least one of part of said housing means and a protrusion on the casing of the supplementary device, and means on said housing and on said casing preventing disconnection of the supplementary device from the main device while the latter remains assembled.

5. The combination claimed in claim 1 wherein said supplementary switching device also includes contacting means in said casing, interengaging means on said contacting means which is movable to cause engagement and disengagement of said contacting means, said interengaging means interconnecting with said contact-moving means of the main device to cause simultaneous movement of said movable contact means and said contacting means of said supplementary device.

6. The combination as claimed in claim 1 wherein the interlocking means comprises a depression and a protrusion fitting in said depression, the depression being formed in one device and the protrusion being formed integrally with the other, and means on said devices preventing their disconnection while the main device remains assembled;

and wherein said supplementary switching device also includes interengaging means on said contacting means which is movable to cause engagement and disengagement of said contacting means;

said interengaging means interconnecting with said contact moving means of the main device to cause simultaneous movement of said movable contact means and said contacting means of said supplementary device.