Fluid handling – Systems – Multi-way valve unit
Patent
1999-04-14
2000-07-18
Rivell, John
Fluid handling
Systems
Multi-way valve unit
91375A, F15B 910
Patent
active
060892706
ABSTRACT:
The method comprises of gripping the component in a gripper of a work holding device mounted to a work holding spindle indexable about a first axis. Then cutting each slot of the array of slots in the bore by a series of cutting strokes of a cutting tool, with the tool mounted to a cutting spindle rotatable about a second axis substantially at right angles to and offset from the first axis. The cutting of each slot followed by indexation of the work holding spindle. During the cutting of at least one of the slots, relative movement between the component and second axis takes place due to movement of the component along the first axis or movement of the second axis in a direction substantially parallel to the first axis or both. The series of cutting strokes comprises two or more successions of progressively deeper cuts and the relative movement occurs between consecutive successions.
REFERENCES:
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patent: 4335749 (1982-06-01), Walter
patent: 4428399 (1984-01-01), Masuda et al.
patent: 4454801 (1984-06-01), Spann
patent: 5131430 (1992-07-01), Roeske et al.
patent: 5542338 (1996-08-01), Rupp
patent: 5842538 (1998-12-01), Sangret
Patent Abstracts of Japan, JP 07267121 A (Koyo Seiko Co Ltd) Oct. 17, 1995, Abstract.
Bishop Steering Pty Limited
Rivell John
Schoenfeld Meredith H
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