Rotating deck bushing with dust guard system

Details Rotating deck bushing with dust guard system Rotating deck bushing with dust guard system

2006-07-25

2006-07-25

Neuder, William (Department: 3672)

Boring or penetrating the earth

With above-ground means for handling drilling fluid or cutting

Fluid or cuttings directing or receiving means engaging bore...

C175S211000

Reexamination Certificate

active

07080702

ABSTRACT:
A rotary deck bushing having an outer body held in a fixed orientation within a drill deck and an inner bushing portion that is configured for rotatable positioning within the outer body portion. A floating center bushing is removable positioned within the inner bushing and can be replaced as wear occurs. A dust deflector made up of a dust canister and a live rubber face with an opening is connected to the inner bushing portion so as to rotate with the inner bushing and to seal out the bushing portion from dust and grit and thus decrease the amount of wear upon the bearings of the device.

REFERENCES:
patent: 2730333 (1956-01-01), Lenhart, Jr. et al.
patent: 3128614 (1964-04-01), Auer
patent: 3944300 (1976-03-01), Learmont et al.
patent: 3951470 (1976-04-01), McLean
patent: 4363357 (1982-12-01), Hunter
patent: 4572589 (1986-02-01), White
patent: 4943172 (1990-07-01), Waldrep
patent: 5413415 (1995-05-01), Collinsworth
Thiessen Team—Centeroll—Repairable Rotary Deck Bushing—Two Pages.
Foremost Industries, Inc. Rotary Deck Bushings—Bulletin 19000—Four Pages.

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