Position measuring apparatus utilizing flexible steel band conta

Details Position measuring apparatus utilizing flexible steel band conta Position measuring apparatus utilizing flexible steel band conta

1981-09-24

1984-10-16

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

33125C, 356375, G01B 310, G01B 1102

Patent

active

044777264

ABSTRACT:
A digital electric position measuring apparatus shielded by a flexible covering band. The covering band is held against an elongated carrier body to form a protective seal. A scanning component, movable along the carrier body, lifts the covering band from the carrier body and detects grid divisions upon the underside of the covering band to sense the position of the scanning unit. The covering band passes between the scanning component and a cooperating coupling member to form a seal protecting portions of the scanning component.

REFERENCES:
patent: 3223845 (1965-12-01), Wales
patent: 3742609 (1973-07-01), Jeannet et al.
patent: 4063086 (1977-12-01), Hirose
patent: 4164816 (1979-08-01), Bergkvist
patent: 4172994 (1979-10-01), Bergkvist
patent: 4381609 (1983-05-01), Holstein
Brochure No. 8780-75-879 Distributed by Teledyne Gurley, Troy, N.Y.

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