Electronic digital tape measure having flexible measuring tape

Details Electronic digital tape measure having flexible measuring tape Electronic digital tape measure having flexible measuring tape

1979-02-28

1982-02-16

Sloyan, Thomas J.

Registers

Platform operated

Platform actuated traffic counters

33139, 235 92MP, 235493, G01B 312, G06M 314

Patent

active

043160816

ABSTRACT:
An electronic digital tape measure includes a flexible tape, a detector, and a digital display. A keyboard unit and a control circuit may be further included for acting as an electronic calculator. The flexible tape is constructed by allocating a number of magnetic balls a predetermined space from each other and by locating a number of non-magnetic balls to provide the space therebetween. The chain of the balls is covered by flexible synthetic resin or the like. While the flexible tape has no special structure, a holding member is provided within the detector for grasping the flexible tape to be driven in unison with the movement of the flexible tape.

REFERENCES:
patent: 2267038 (1941-12-01), Mix
patent: 2817824 (1957-12-01), Albright
patent: 3170100 (1965-02-01), Rantsch et al.
patent: 3243692 (1966-03-01), Heissmeier et al.
patent: 3780440 (1973-12-01), Taylor
patent: 3812589 (1974-05-01), Schultheis
patent: 4031360 (1977-06-01), Soule
patent: 4117600 (1978-10-01), Guignard et al.
patent: 4161781 (1979-07-01), Hildebrandt et al.

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