Rolling seal for a well having a rod-type pump

Details Rolling seal for a well having a rod-type pump Rolling seal for a well having a rod-type pump

1975-05-19

1978-05-02

Freeh, William L.

Machine element or mechanism

Flexible sealing diaphragm attached to moving rod and to casing

Longitudinally reciprocating rod

417545, F16J 1550

Patent

active

040868192

ABSTRACT:
A rolling seal assembly for sealing between a well head and a pump rod reciprocating a predetermined stroke distance through an opening in the well head, the seal assembly comprising a substantially tubular, flexible seal encircling the rod adjacent to the well head, the seal having a first end sealingly connected around the rod and a second end sealingly connected to the well head around the opening, the seal rollingly extending between the first and second ends thereof as the first end reciprocates with the rod.

REFERENCES:
patent: 1038636 (1912-09-01), Oxnard
patent: 1060961 (1912-05-01), Waitz
patent: 1910762 (1933-05-01), Grinnell et al.
patent: 2178953 (1939-11-01), Chilton
patent: 2230856 (1941-02-01), Andrew
patent: 2253046 (1941-08-01), Pierce
patent: 2692618 (1954-10-01), Ludowici
patent: 2725078 (1955-11-01), Glancy
patent: 2832223 (1958-04-01), Couraud
patent: 2846983 (1958-08-01), Otto
patent: 2860017 (1958-11-01), Honegger
patent: 3118389 (1964-01-01), Camp
patent: 3244013 (1966-04-01), Deschner
patent: 3353606 (1967-11-01), Dyer
patent: 3369411 (1968-02-01), Hines
patent: 3382954 (1968-05-01), Charlson
patent: 3439913 (1969-04-01), Kamman
patent: 3796103 (1974-03-01), Winfield, Jr.

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