Combination seal and wear for an air gun

Details Combination seal and wear for an air gun Combination seal and wear for an air gun

1997-10-22

1998-10-20

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

181120, H04R 2300

Patent

active

058257209

ABSTRACT:
A wear ring assembly for an air gun includes a support ring having a receiving recess of a first length formed in a surface of an end of the support ring. An elastic ring is adjacent an end of the receiving recess. A wear ring seats in the receiving recess and is of a second length, greater than the first length, such that a portion of the wear ring overlaps the end of the support ring, thereby covering and deforming the elastic ring. The wear ring is formed of a thin, low-friction, wear-resistant plastic material having dimensions such that the wear ring does not plastically yield during installation into the receiving recess. Installation is accomplished by attaching a core tool adjacent the seal groove. The wear ring is installed with an expanding pusher tool, over the core tool and into the receiving recess.

REFERENCES:
patent: 5228010 (1993-07-01), Harrison
patent: 5365493 (1994-11-01), Harrison
patent: 5646909 (1997-07-01), Bouyoucos
patent: 5646910 (1997-07-01), Bouyoucos

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