Method of and apparatus for purging an annular bayonet

Details Method of and apparatus for purging an annular bayonet Method of and apparatus for purging an annular bayonet

1987-08-03

1990-04-10

Nelson, Peter A.

Plastic and nonmetallic article shaping or treating: processes

Explosive or propellant article shaping or treating

Forming or treating particulate material

264 31, 86 2012, 86 45, 102291, C06B 2100

Patent

active

049158830

ABSTRACT:
An annular bayonet vacuum cup allows a vacuum to be pulled on an annular bayonet and the bayonet to be filled with propellant that is devoid of air. The vacuum cup is transparent/translucent and allows the propellant to be seen as it leaves the exit end of the bayonet. This alerts an operator to cut off the vacuum pressure thereby to keep the excess of propellant flow to a minimum, which excess drops into the vacuum cup and is prevented from contaminating the vacuum line. The vacuum cup is disposable (an O-ring sealing ring being reusable) and eliminates propellant clean-up.

REFERENCES:
patent: 3222433 (1965-12-01), Makay, Jr.
patent: 3405201 (1968-10-01), Roach
patent: 3890877 (1975-06-01), Lista et al.
patent: 3952627 (1976-04-01), Gardiner et al.
patent: 4103584 (1978-08-01), Lista et al.
patent: 4154141 (1979-05-01), Sayles
patent: 4503773 (1985-03-01), Bolieau

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