Vibration and erosion resistant nozzle

Details Vibration and erosion resistant nozzle Vibration and erosion resistant nozzle

1986-11-20

1987-12-08

Novosad, Stephen J.

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

285356, E21B 1018

Patent

active

047113111

ABSTRACT:
An erosion and vibration resistant nozzle apparatus is disclosed for earth drilling rock bits. The nozzle includes a flow bean that is retained in a nozzle cavity by a threaded retainer, the retainer having at least one axially aligned slot therethrough to more fully engage the roots and crests of the retention threads to firmly secure the nozzle bean within its nozzle cavity. The split retainer may also have a conically shaped interior opening that conforms to a cone shaped exterior of the exit end of the nozzle bean for a more secure retention of the nozzle body within the nozzle cavity.

REFERENCES:
patent: 2950090 (1960-08-01), Swart
patent: 3084751 (1963-04-01), Scarborough
patent: 3129777 (1964-04-01), Haspert
patent: 3179448 (1965-04-01), Jones
patent: 3220754 (1965-11-01), Mori
patent: 3823789 (1974-07-01), Garner
patent: 4193616 (1980-03-01), Sarson et al.
patent: 4301877 (1981-11-01), Cloud
patent: 4348040 (1982-09-01), Harjar
patent: 4381825 (1983-05-01), Radtke
patent: 4400024 (1983-08-01), Ratcliff et al.
patent: 4621841 (1986-11-01), Wakefield

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