Electrical clamp

Details Electrical clamp Electrical clamp

1979-03-30

1981-06-02

McQuade, John

Geometrical instruments

339268S, 339270R, 339273R, H01R 450

Patent

active

042708249

ABSTRACT:
An improved arc welding gun includes a quick connect connector, a differential taper cable clamp and an easily operated trigger locking assembly. The quick connect connector includes a current contacting pin which fits within a mating sleeve. The sleeve is provided with a pair of axial slits and is spring biased to firmly grip the contacting pin to provide a low resistance connection. Preferably, the connector is held together by a locking sleeve which can be either connected or disconnected with a fractional rotation of the locking ring. The cable clamp includes two clamping members which fit together to clamp the power conductors of a cable between inner and outer clamping surfaces. The inner and outer clamping surfaces are both conical and are provided with different tapers such that a narrow throat region is formed between the two clamping surfaces near the cable end of the clamp. This differential taper provides a low resistance and a secure grip on the power conductors. The locking trigger assembly includes a slideably mounted locking crescent which has one end situated near a finger surface of the trigger assembly. Pressure on this end of the crescent simultaneously pivots the trigger and locks the trigger in the pivoted position.

REFERENCES:
patent: 1039542 (1912-09-01), Kennington
patent: 1301827 (1919-04-01), Flye
patent: 1696568 (1928-12-01), Fogel
Tweco MIG-Gun Installation; Form No. MGM-12R; 9-15-73.
400 Ampere Tweco MIG Gun; Catalog No. MG 400-76; 12-15-76.
Model No. 1, "Tweco Lite"; Catalog No. MG 100-78; 4-1-78.
MIG Welding Guns; Binzel Catalog No. 41-78, 4-1-78.
Binzel Catalogs: BA 15K-76-1; BA 30K-76-1; BA 40-76-1; BA 60-76-1; BA 500/600-76-1; "MIG Welding Guns".
Binzel Form No. WFA-78.
OSU-Schnellanschluss-Sichensheitssysstem.
OSU: Schutzgas Schweisspistolen EMSG.
"Tweco Cone Nut-End Fitting Assembly", 1-12-79.

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