Suction valve

Details Suction valve Suction valve

2007-02-06

2007-02-06

Lee, Kevin (Department: 3753)

Valves and valve actuation

Reciprocating valve

Piston

C251S318000, C137S542000, C137S516290

Reexamination Certificate

active

10764902

ABSTRACT:
A suction valve including a valve seat and a piston movably joined to the valve seat. The piston has a head for engaging the top surface of the valve seat and a stem extending downwardly from the head through the valve seat. A valve guide is positioned adjacent the bottom surface of the valve seat and slidably receives the stem. A valve keeper is fitted upon the stem such that the valve guide is disposed between the valve seat and the valve keeper. A keeper pin is slidably positioned within a transverse aperture in the stem and abuts the bottom of the valve keeper. A compressed spring is positioned between, and exerts opposing forces upon, the valve guide and the valve keeper so as to normally retain the head of the piston in engagement with the top surface of the valve seat.

REFERENCES:
patent: 144844 (1873-11-01), Gould et al.
patent: 185578 (1876-12-01), Rankin
patent: 1705800 (1929-03-01), Akeyson
patent: 2078347 (1937-04-01), Shepherd et al.
patent: 2854021 (1958-09-01), Baldwin, Jr. et al.
patent: 3098642 (1963-07-01), Kucmerosky et al.
patent: 3373695 (1968-03-01), Yohpe
patent: 3427988 (1969-02-01), Redman et al.
patent: 3800824 (1974-04-01), Medina
patent: 3882883 (1975-05-01), Droegemueller
patent: 4368756 (1983-01-01), Carlson
patent: 4432386 (1984-02-01), Pacht
patent: 4614661 (1986-09-01), White et al.
patent: 4766927 (1988-08-01), Conatser
patent: 5171136 (1992-12-01), Pacht
patent: 5253987 (1993-10-01), Harrison
patent: 5636975 (1997-06-01), Tiffany et al.
patent: 6695007 (2004-02-01), Vicars
patent: 1113346 (1981-12-01), None
IDS from U.S. Appl. No. 10/114,356, parent case, Suction Valve.
Notice of References Cited from parent case U.S. 10/114,356, Vicars, Suction Valve.
Jan. 24, 2001—Letter to Cudd Pumping Services (2pp).
Jan. 24, 2001—Memo to Bert Vicars (2 pp).
Jan. 30, 2001—Memo to Cudd (3pp).
Feb. 1, 2001—Letter to Cudd (2pp).
Feb. 15, 2001—Letter to Cudd (2 pp).
Feb. 15, 2001—Letter to Conroe Plastic Mold, Inc. (1 p).
Mar. 7, 2001—Letter to C.B. Gear & Machine, Inc. (4pp).
May 18, 2001—Letter to Conroe Plastic Mold, Inc. (1 p).
May 31, 2001—Letter to Cudd (2pp).
Jul. 16, 2001—Letter to Conroe (2pp).
Jul. 18, 2001—Letter to Cudd (Jimmy Brown, 1 page).
Jul. 18, 2001—Letter to Cudd (Bill DeShazer, 2 pp).
Feb. 12, 2002—Letter to Conroe (1 page).
Cross-Section of valve on sale one year prior to invention.

Affiliated with

Also associated with

Rating

Suction valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3829354