Extendable tape measure

Details Extendable tape measure Extendable tape measure

1994-08-08

1996-11-19

Will, Thomas B.

Geometrical instruments

Distance measuring

By flexible tape

33771, G01B 310

Patent

active

055750770

ABSTRACT:
An extendable tape measure having a scale tape which is extended outward by its elasticity without a leaf spring. The tape measure has a case, a rotatable spool mounted in the case, a scale tape wound on the spool and a stopper mounted on the case for locking the scale tape. The spool has two facing flanges. Each of the flanges is provided at its peripheral edge with a rim extended inward. The scale tape can be extended outward by its elasticity or can be extended and retracted by turning the handle.

REFERENCES:
patent: 1988428 (1935-01-01), Carlson
patent: 1992947 (1935-03-01), Hayward
patent: 2893656 (1959-07-01), Carlson
patent: 2956795 (1960-10-01), Foster
patent: 3214836 (1965-11-01), West
patent: 3908277 (1975-09-01), Rutty
patent: 3942738 (1976-03-01), Rutty
patent: 4155168 (1979-05-01), DuBois
patent: 4200983 (1980-05-01), West et al.
patent: 4578867 (1986-04-01), Czerwinski et al.
patent: 5007178 (1991-04-01), Dewire et al.

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