Apparatus to bias valve closure members

Details Apparatus to bias valve closure members Apparatus to bias valve closure members

2008-01-22

2011-12-06

Bastianelli, John (Department: 3753)

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

C251S305000, C251S313000, C251S330000

Reexamination Certificate

active

08070130

ABSTRACT:
A biasing apparatus includes a first spring seat that has a first seating surface and a first protruding member extending a predetermined distance from the first seating surface and a second spring seat that has a second seating surface and a second protruding member extending a predetermined distance from the second seating surface. The first and second protruding members engage to slidably couple the first and the second spring seats.

REFERENCES:
patent: 1958262 (1934-05-01), Boland
patent: 2879027 (1959-03-01), Mueller
patent: 3815870 (1974-06-01), Milleville et al.
patent: 3968970 (1976-07-01), Vogeli
patent: 4120596 (1978-10-01), Kunkle
patent: 4273308 (1981-06-01), Nakai
patent: 4510966 (1985-04-01), Parsons, Jr.
patent: 4846441 (1989-07-01), Scobie et al.
patent: 5129625 (1992-07-01), Wood et al.
patent: 5190264 (1993-03-01), Boger
patent: 5234194 (1993-08-01), Smith
patent: 5326074 (1994-07-01), Spock et al.
patent: 5593166 (1997-01-01), Lovell et al.
patent: 5601276 (1997-02-01), Wordin
patent: 6651957 (2003-11-01), Wordin et al.
patent: 6974121 (2005-12-01), Koester et al.
patent: 7093618 (2006-08-01), Williams et al.
patent: 7243901 (2007-07-01), Eggleston
patent: 7387291 (2008-06-01), Jira et al.
patent: 2003/0062688 (2003-04-01), Dorrian et al.
patent: 341688 (1931-01-01), None
patent: 1369885 (1974-10-01), None
International Searching Authority, “International Search Report,” issued in connection with counterpart international application No. PCT/US2008/087015, mailed Apr. 29, 2009, 4 pages.
International Searching Authority, “Written Opinion of the International Searching Authority,” issued in connection with counterpart international application No. PCT/US2008/087015, mailed Apr. 29, 2009, 5 pages.
European Patent Office, “Office Communication,” issued in connection with European application serial No. 08 871 536.2, issued Feb. 21, 2011, 4 pages.

Affiliated with

Also associated with

Rating

Apparatus to bias valve closure members does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus to bias valve closure members, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus to bias valve closure members will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4308784