Metal working – Means to assemble or disassemble – Valve applying or removing
Patent
1992-02-06
1993-07-13
Watson, Robert C.
Metal working
Means to assemble or disassemble
Valve applying or removing
29249, B23P 1904
Patent
active
052262294
ABSTRACT:
A self-locking valve spring retainer (30) operatively retaining a return spring (28) on the stem (20) of a poppet valve (16) comprises an annular base ring (48) from which three flexible arms (52) upwardly extend. A pair of axially spaced locking steps (66, 68) project radially inwardly from each of the arms (52) to provide barbed engaging ledges (74, 76) which interlock with a correspondingly shaped valve stem (20). An annular waisted hinge (86) is formed between the three arms (52) and the base ring (48) to ease stresses on the retainer (30) as the arms (52) are blossomed outwardly during installation and removal. A metallic anti-wear plate (88) is secured to the top of each arm (52). An installation and removal tool (92) for the retainer (30) comprises three wedge-shaped prongs (98) insertable within the three expansion slots (54) separating the three arms (52) for blossoming the retainer (30) prior to insertion and removal. A member (102) extends integrally from each of the prongs (98) for engaging the return spring (28) to maintain the return spring (28) spaced from the retainer (30) prior to blossoming the retainer (30).
REFERENCES:
patent: 2427045 (1947-09-01), Cook
patent: 3273856 (1966-09-01), Tauschek
patent: 3284887 (1966-11-01), Tauschek
patent: 3315339 (1967-04-01), Young
patent: 3564697 (1971-02-01), Shalaty et al.
patent: 3612016 (1971-10-01), Jeken
patent: 4879978 (1989-11-01), Pierce
LandOfFree
Self-locking valve spring retainer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-locking valve spring retainer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-locking valve spring retainer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2304063