Cavity jacket for plunger piston

Details Cavity jacket for plunger piston Cavity jacket for plunger piston

1998-11-25

2000-10-17

Look, Edward K.

Expansible chamber devices

Piston with rigid axially extending hollow stem

Relatively movable elongated part within stem

65159, 65168, 65362, E01B 300, C03B 1106

Patent

active

061315028

ABSTRACT:
A device for inhibiting glass from falling into an annular cavity formed between a plunger piston and an inner piston telescopically journalled within a longitudinal cavity within the plunger piston includes a rigid sleeve mountable to the plunger piston, adjacent walls of the longitudinal cavity, so as to substantially fill the annular cavity. The sleeve is mountable into snug sliding relation with the inner piston.

REFERENCES:
patent: 4272273 (1981-06-01), Trahan et al.
patent: 5139559 (1992-08-01), Kozora
patent: 5334233 (1994-08-01), Kozora
patent: 5358543 (1994-10-01), Kozora

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