Optics: measuring and testing – Inspection of flaws or impurities – Bore inspection
Patent
1987-09-03
1989-11-28
McGraw, Vincent P.
Optics: measuring and testing
Inspection of flaws or impurities
Bore inspection
350 9626, G01N 2188
Patent
active
048833550
ABSTRACT:
An improved thruster for propelling borescopes by the reaction forces generated by pressurized fluid expelled from the thruster has a desirably small cross-sectional profile made possible by its novel construction. The basic embodiment of the thruster comprises an elongated hollow cylinder sealed at one end by a bulkhead and supplied with pressurized fluid at the opposite, open end. A thin slot cut through the cylinder wall permits pressurized fluid to exit the hollow interior space of the cylinder, producing a reaction force useful in propelling a borescope tip to which the thruster is fastenable.
REFERENCES:
patent: 4735501 (1988-04-01), Ginsburgh et al.
Saghatchi Hamid
Taylor Geoffrey L.
McGraw Vincent P.
Turner S. A.
Welch Allyn Inc.
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