Nozzle retaining ring with crushed O-ring

Details Nozzle retaining ring with crushed O-ring Nozzle retaining ring with crushed O-ring

1981-07-31

1983-08-23

Scanlan, Jr., Richard J.

Pipe joints or couplings

Packed

Gland

285 39, 175340, F16L 1900, F16L 5500, E21B 1018

Patent

active

044000243

ABSTRACT:
An earth boring bit has a nozzle assembly with a wedging retaining ring and a crushed O-ring seal. The nozzle is located in a passage in the drill bit and bears against a shoulder. The retaining ring is secured by threads into the passage to tighten the nozzle against the shoulder. The retaining ring has a bore with an upper rim that encircles a conical section in the bore. The retaining ring conical section mates with a conical section formed on the exterior of the nozzle. The two conical sections wedge the nozzle in place when the retaining ring is tightened. An O-ring is located between the nozzle conical section, the wall of the passage and the upper rim of the retaining ring.

REFERENCES:
patent: 2085941 (1937-07-01), Arnold
patent: 2169223 (1939-08-01), Christian
patent: 2525667 (1950-10-01), Goolsbee et al.
patent: 2719026 (1955-09-01), Boice
patent: 2885185 (1959-05-01), Sartor
patent: 2950090 (1960-08-01), Gwart
patent: 3207241 (1965-09-01), Neilson
patent: 3688853 (1972-09-01), Maurer
patent: 3823789 (1974-07-01), Garner
patent: 4077482 (1978-03-01), Ioannesian et al.
patent: 4301877 (1981-11-01), Cloud
1 p. of Parker Catalogue.

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