Tong locking mechanism

Details Tong locking mechanism Tong locking mechanism

1977-04-28

1978-06-20

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5718, 81 5733, B25B 1700

Patent

active

040954935

ABSTRACT:
This invention relates to a door mechanism for a rotary power tong, such as used in well drilling operation. The door is pivoted to one of the bifurcated portions of the tong and a door locking mechanism is used to attach the swinging end of the door to the other bifurcated portion of the tong. At least one contact surface is attached to the door to transmit forces to the door and engage a hook-like member attached to the tong frame. At least one contact member is attached to the frame to transmit forces to the frame and engage a hook-like member attached to the door. Such contact engagements provide for door support in both radial and tangential directions.

REFERENCES:
patent: 2705614 (1955-04-01), McKibben et al.
patent: 2985455 (1961-05-01), Powell
patent: 3799009 (1974-03-01), Guier
patent: 3902385 (1975-09-01), Haby

Affiliated with

Also associated with

Rating

Tong locking mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tong locking mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tong locking mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1128705