Ronald D Huggins

US Patent:

44676824, Aug 28, 1984

Filed:

Sep 30, 1982

Appl. No.:

6/431711

Inventors:

Ronald D. Huggins - Bullard TX

Assignee:

Anvil Corporation - Jacksonville TX

International Classification:

B23B 514

US Classification:

82 73

Abstract:

A tubing cutter (20) includes a rotary shaft member (22) having three hubs (28, 30, 32) extending therefrom to define three angularly spaced radial guideways (34, 36, 38) between the hubs. A radially slidable cutting wheel carrier (80) and two contact wheel carriers (110, 112) are slidable within the radial guideways. A cutter actuator (200) cooperates with the rotary shaft member to control the radial movement of the wheel carriers. The actuator includes a sleeve portion with three actuating arms (208, 210, 212) for registering in the outer portion of the guideways for engaging the wheel carriers. The surfaces of the actuating arms cooperating with the wheel carriers are designed to force the wheel carriers radially inwardly when the actuator arm is moved relative to the shaft member. A cutting wheel is mounted on the cutting wheel carrier for cutting a pipe positioned in the cutoff device as it is moved inwardly. Contact wheels (124) are mounted on the contact wheel carriers (104) and engage and support the tubing during the cutting operation.