Patents Assigned to Mig Vac Inc.
  • Nozzle structure in welding gun
    Patent number: 5015822
    Abstract: A nozzle structure for a fume-extracting welding gun is described which provides for efficient removal of fume from a welding site. The nozzle is provided with laterally elongate slots formed through a tapering portion or a right cylindrical portion of the nozzle.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: May 14, 1991
    Assignee: MIG VAC Inc.
    Inventor: Robert N. Mann
  • Joint in fume-extracting welding gun
    Patent number: 5007664
    Abstract: A conventional T-Y joint of a fume-extracting welding gun is constructed of two semi-circularly contoured parts which are snap-locked together along a longitudinal line of join. One part may have a cylindrical portion integrally formed therewith to form an end closure for the joint. The end closure has bores for utility feeds therethrough, with that for the power cable being provided with an integrally-formed hexagonal recess to receive a hexagonal nut on the power cable to enable the power cable to be clamped to the joint.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: April 16, 1991
    Assignee: Mig Vac Inc.
    Inventor: Robert N. Mann
  • Welding gun swivel
    Patent number: 4945209
    Abstract: Additional flexibility of positioning of a welding gun head relative to a smooth surfaced flexible hose is provided by a generally elongate swivel joint positioned between the hose and a bellows connector. The swivel joint comprises two parts which rotate relative to one another about the longitudinal axis of the joint.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: July 31, 1990
    Assignee: Mig Vac Inc.
    Inventor: Robert N. Mann
  • Welding gun cable saddle
    Patent number: 4926024
    Abstract: To prevent abrasion of the power cable of a welding gun as the power cable passes from a bellows connector into the welding gun handle, an abrasion-resistant sleeve is positioned over the power cable at that location.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: May 15, 1990
    Assignee: Mig Vac Inc.
    Inventor: Robert N. Mann