Tape measure braking device

Details Tape measure braking device Tape measure braking device

1988-08-12

1990-02-27

Watkins, Donald

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

33767, 2421072, B65H 7548

Patent

active

049039121

ABSTRACT:
A braking device controls retraction of the tape blade of a retractable blade tape measure. The tape measure includes a tape measure case and a coiled tape blade inside the case. A motor mechanism retracts the tape blade into the case. A braking device contacts the coiled tape blade inside the case before the end of the tape blade strikes the case. The braking device reduces or stops retraction of the tape blade before the end of the tape blade strikes the case.

REFERENCES:
patent: 2250171 (1941-07-01), Wilkins
patent: 2460082 (1949-01-01), Gray
patent: 3482798 (1969-12-01), Kawaguchi
patent: 3578259 (1971-05-01), Zelnick
patent: 3610548 (1971-10-01), Quenot
patent: 3942738 (1976-03-01), Rutty
patent: 4121785 (1978-10-01), Quenot
patent: 4288923 (1981-09-01), Duda
patent: 4439927 (1984-04-01), Elliott
patent: 4449302 (1984-05-01), Drechsler et al.
patent: 4479617 (1984-10-01), Edwards
patent: 4527334 (1985-07-01), Jones et al.
patent: 4603481 (1986-08-01), Cohen et al.
patent: 4730783 (1988-03-01), Lamson

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