Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1977-04-18
1981-01-13
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
F16J 1546
Patent
active
042445906
ABSTRACT:
An inflatable packer which can be easily constructed using tubular members such as a section of well casing, the packer having spaced, first and second annular heads which surround a central tubular member, the first head being slidable along the tubular member, a relief or attachment space being formed between the second head and the tubular member, a securing element being disposed in the relief for securing the second head to the tubular member and preventing relative longitudinal movement thereof, a centering member being disposed between the second head and the tubular member to maintain the second head and the tubular member in substantially coaxial relationship independent of the securing element, an inflatable, tubular element being attached to and extending between the first and second heads.
REFERENCES:
patent: 3044553 (1962-07-01), Bradley
patent: 4003581 (1977-01-01), Hutchison et al.
patent: 4082298 (1978-04-01), Sanford
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