Conduit for guiding fiber optic viewing device

Details Conduit for guiding fiber optic viewing device Conduit for guiding fiber optic viewing device

1979-09-12

1981-04-14

Goldberg, Gerald

Measuring and testing

Measuring vessel

73 405R, 34087029, 350110, G01N 122, G01M 304

Patent

active

042612047

ABSTRACT:
A system and apparatus by which an observer outside a building can read the indices of an instrument located within the building and can check the presence of combustible gas in the atmosphere within the building, comprising a guide tube extending between a weatherproof receiving station outside the building and a transmitting station at the meter, including accessory means for confining gas entering the building around a gas main and conducting it to the transmitting station.

REFERENCES:
patent: 2815258 (1957-12-01), Coolidge
patent: 3441923 (1969-04-01), King
patent: 3573773 (1971-04-01), O'Hanlon
patent: 3690775 (1972-09-01), Cousins
patent: 3699950 (1972-10-01), Humphrey, Jr. et al.
patent: 4204115 (1980-05-01), Boldridge, Jr.
MSA Data Sheet, 08-00-03.
MSA Data Sheet, 08-00-04.
AO Fiber Optics-The Complete Line From American Optical.

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