Sliding bearing and seal

Details Sliding bearing and seal Sliding bearing and seal

1982-01-25

1984-02-07

Reese, Randolph

Cutlery

105282R, 277166, 277182, B61D 722, B61D 726, F16C 1726

Patent

active

044299214

ABSTRACT:
A sliding gate for closing the discharge opening of a hopper having inclined side walls is mounted on elongated low-friction bodies or assemblies secured between the underside of upturned inclined side margins of the gate and the top sides of inclined side walls of a discharge chute secured to the hopper and extending below the discharge opening. The elongated low-friction bodies or assemblies are mounted to create a labyrinth seal by methods which include the use of a plurality of integral stud portions extending through corresponding openings along the inclined side margins of the gate, adhesives, keyways, welding or combinations thereof. The elongated low-friction bodies or assemblies are of a polymeric material such as nylon, Teflon or a composite material like ultra-high molecular weight polyethylene impregnated with molybdenum disulfide. The polymeric low-friction material may be molded to a metal matrix which is mounted on the gate by means of welding. Tapered sealing flaps for engagement with the lower portions of the inclined side walls of the hopper may be included in the low-friction bodies or assemblies.

REFERENCES:
patent: 2646333 (1953-07-01), Abrahamson et al.
patent: 2705655 (1955-04-01), Brown et al.
patent: 2759773 (1956-08-01), Wilmer et al.
patent: 2983562 (1961-05-01), Runton et al.
patent: 3183852 (1965-05-01), Fritz
patent: 3509828 (1970-05-01), Fritz
patent: 3659306 (1972-05-01), Stoltze et al.
patent: 3953086 (1976-04-01), Chaffin
patent: 4099798 (1978-07-01), Steinmetz
patent: 4188888 (1980-02-01), Cooper et al.
patent: 4344365 (1982-08-01), Fritz et al.

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