Perforating, seal-greasing apparatus and method

Details Perforating, seal-greasing apparatus and method Perforating, seal-greasing apparatus and method

1983-09-14

1985-08-13

Brown, David H.

Lubrication

Lubricators

Refilling device

141329, 222149, 222495, F16N 2104, F16N 502, G01R 3122, A61M 532

Patent

active

045344493

ABSTRACT:
An improved method and apparatus for perforating and applying grease through a resilient seal using a solid or hollow needle, said solid needle puncturing the seal with a sufficiently small perforation that, as the device is maintained in contact with the seal and pressurized lubricant is applied, the perforation is hydraulically opened by the grease, and wherein, upon removal of the device, the perforation will self-seal due to the resilient character of the seal material.

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patent: 3589470 (1971-06-01), Dorn
patent: 3669220 (1972-06-01), Andersson
patent: 3884230 (1975-05-01), Wulff
patent: 4201208 (1980-05-01), Cambio
patent: 4388591 (1983-06-01), Lannan

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