Piston pump with improved hold-down mechanism

Details Piston pump with improved hold-down mechanism Piston pump with improved hold-down mechanism

1994-10-03

1996-02-13

Ryznic, John E.

Expansible chamber devices

Relatively movable working members

Interconnected with common rotatable shaft

91499, 417269, F01B 300, F01B 1304, F04B 112

Patent

active

054904447

ABSTRACT:
The disclosure relates to a pump having a wobble plate, at least one piston assembly reciprocated by the wobble plate, and a mechanism retaining the piston assembly in contact with the wobble plate. In the improvement, the mechanism includes a hold-down plate having a number of radially-extending retention fingers. Each finger extends into a fill opening of a separate piston assembly and retains such assembly in contact with the pump wobble plate. The piston shoe is maintained in sliding contact with the wobble plate; that is, separation of the piston assembly from the wobble plate is thereby substantially prevented.

REFERENCES:
patent: 2445281 (1948-07-01), Rystrom
patent: 2612837 (1952-10-01), Midgette
patent: 2672095 (1954-03-01), Lucien et al.
patent: 2675759 (1954-04-01), Yarger
patent: 2819678 (1958-01-01), Nordell et al.
patent: 2821932 (1958-02-01), Lucien
patent: 2918879 (1959-12-01), Cervo
patent: 3183847 (1965-05-01), Raymond
patent: 3357363 (1967-12-01), Raymond
patent: 3413929 (1968-12-01), Cook et al.
patent: 3514223 (1970-03-01), Hare
patent: 3691910 (1972-09-01), Reichel et al.
patent: 4464979 (1984-08-01), Forster
patent: 4579043 (1986-01-01), Nikolaus et al.
patent: 4602554 (1986-07-01), Wagenseil et al.
patent: 4615257 (1986-10-01), Valentin
patent: 4642032 (1987-02-01), McBeth
patent: 4860641 (1989-08-01), Spears
patent: 5086689 (1992-02-01), Masuda
patent: 5236312 (1993-08-01), Finn et al.
patent: 5320498 (1994-06-01), Fuchida

Affiliated with

Also associated with

Rating

Piston pump with improved hold-down mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Piston pump with improved hold-down mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piston pump with improved hold-down mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-235587