Jet nozzle for propelling an apparatus along a conduit and appar

Details Jet nozzle for propelling an apparatus along a conduit and appar Jet nozzle for propelling an apparatus along a conduit and appar

1989-09-18

1991-01-15

Shepperd, John W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 93, 358106, 354 63, 239747, 134167C, 1510412, H04J 718, B08B 300

Patent

active

049857630

ABSTRACT:
A jet nozzle for use in propelling a trolley or sledge provided with a television or video camera along a conduit, such as a sewer, for use in inspecting the interior of the conduit, the jet nozzle comprising a casing having an end wall provided with a plurality of discharge openings communicating with a chamber formed between said end wall and a transverse wall, an inlet in communication with the chamber and connected to a home, a bearing provided on the casing mounting a connector member for connecting the jet nozzle to the trolley or sledge and allowing the casing to rotate relative to the connector member.

REFERENCES:
patent: 4107738 (1978-08-01), Van Norman
patent: 4154447 (1979-05-01), Francis, Jr. et al.
patent: 4661848 (1987-04-01), Matsuda
patent: 4677997 (1987-07-01), Strauss
patent: 4764180 (1988-08-01), Saddock

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