Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1996-01-11
1997-04-22
DePumpo, Daniel G.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277105, 277110, 277227, 277117, F16J 1524
Patent
active
056223714
ABSTRACT:
A stuffing box 10, 60 designed for sealing engagement with a rod member R includes a plurality of stacked packing rings 32, 110, 150, 210, and a gland member 42, 64 axially moveable relative to the stuffing box body 12, 62 for varying the compressive force on the packing rings. Each packing ring comprises an annular rubber carrier 34, 112, 152, 212 having tapered upper and lower surfaces, and an annular plastic dynamic seal 36, 114, 154, 214 for sealing engagement with the rod member. Gland member 42, 64 exerts an axially compressive force on the radially exterior portion of each angularly wedged packing ring and thereby generates a radial inwardly directed biasing force on each plastic dynamic seal through the rubber carrier for sealing engagement of the dynamic seal with the rod member. Each packing ring includes an annular recess in at least one of the tapered upper and lower surfaces for thermal expansion of the rubber carrier, for flexing of the packing ring, and for increasing radial forces on the dynamic seal.
REFERENCES:
patent: 756880 (1904-04-01), McIntire
patent: 882103 (1908-03-01), Edgecumbe
patent: 1184212 (1916-05-01), Reuschline
patent: 2081040 (1937-05-01), King
patent: 2553750 (1951-05-01), Cole
patent: 2845286 (1958-07-01), Case et al.
patent: 3002776 (1961-10-01), Tschappat
patent: 3068942 (1962-12-01), Brown
patent: 3168320 (1965-02-01), Sneed
patent: 3188048 (1965-06-01), Sutherland
patent: 3284086 (1966-11-01), Primrose
patent: 3284088 (1966-11-01), Pippert
patent: 3331609 (1967-07-01), Moran
patent: 3393917 (1968-07-01), Kendall et al.
patent: 3918726 (1975-11-01), Kramer
patent: 4040636 (1977-08-01), Albertson et al.
patent: 4268045 (1981-05-01), Traub
patent: 4327923 (1982-05-01), Chesterton et al.
patent: 4451047 (1984-05-01), Herd et al.
patent: 4480842 (1984-11-01), Mahyera et al.
patent: 4560176 (1985-12-01), Hoff
patent: 4570944 (1986-02-01), Traub
patent: 4991857 (1991-02-01), Pippert
patent: 5022660 (1991-06-01), Dunford et al.
PC Pumping Systems: Design, Operation and Performance Optimization, 1994, p. 162, .COPYRGT.1994.
Huber-Herceules General Product Catalog, HHG-94, pp. 1, 2 and 17-26 (date unavailable).
Angelo Lawrence F.
Heathcott J. William
Witte, Sr. Stephen L.
LandOfFree
Stuffing box with improved packing rings and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stuffing box with improved packing rings and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stuffing box with improved packing rings and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-337806