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US 4,822,221 AGranted
Internal flash removal unit
AssigneeMcDermott Incorporated
InventorJan Illakowicz
Life of this patent
Estimating the term…
Abstract
An internal flash removal unit which radially cuts flash while it is still hot and relatively soft. A drive motor and reduction gearbox mounted in a housing drive a tooling plate rotatably mounted on the housing. A cutting assembly is mounted on an arm which is pivotally mounted on the tooling plate. A hydraulic actuator causes the arm to move outward and place the cutting assembly into cutting position as rotation of the tooling plate begins.
Claims10
An internal flash removal unit for removing hot flash, comprising:
- a. a housing;
- b. a drive motor mounted in said housing;
- c. a gearbox in operative engagement with said drive motor;
- d. a tooling plate rotatably mounted to and coaxially with said housing;
- e. a cutting assembly pivotally mounted to said tooling plate and radially movable between a first retracted position and a second extended cutting position;
- f. a carbide shoe mounted on said cutting assembly;
- g. means between said gearbox and said tooling plate for rotatably driving said tooling plate;
- h. means for moving said cutting assembly between said first and second positions, comprising a hydraulic cylinder and piston connected to said tooling plate and said cutting assembly;
- and
- i. a hydraulic fluid accumulator mounted in said housing and in fluid communication with said hydraulic cylinder for maintaining even pressure on said cutting assembly while in the cutting position.
7 more elements
An internal flash removal unit for removing hot flash, comprising:
- a. a housing;
- b. a drive motor mounted in said housing;
- c. a gearbox in operative engagement with said drive motor;
- d. a tooling plate rotatably mounted to and coaxially with said housing;
- e. means engaged between said gearbox and said tooling plate for causing rotation of said tooling plate in response to activation of said drive motor;
- f. an arm pivotally mounted on said tooling plate;
- g. a cutting assembly rigidly mounted on said arm;
- h. a carbide shoe mounted on said cutting assembly;
- i. means attached to said tooling plate and said arm for moving said arm and said cutting assembly between a first retracted position and a second extended cutting position, comprising a hydraulic cylinder and piston connected to said tooling plate and said arm;
- and
- j. a hydraulic fluid accumulator mounted in said housing and in fluid communiciation with said hydraulic cylinder for maintaining even pressure on said cutting assembly while in the cutting position.
8 more elements
Dependencies are inferred from the claim text.