Structure tape rule

Details Structure tape rule Structure tape rule

2005-11-15

2005-11-15

Bennett, G. Bradley (Department: 2859)

Geometrical instruments

Distance measuring

By flexible tape

C033S761000, C242S371000, C242S376000

Reexamination Certificate

active

06964114

ABSTRACT:
An improved structure tape rule in which the blade spool has space at one side of one-piece construction for containing the coiled spring, enabling the blade spool to accommodate the winding of a ruler blade that is approximately two to three times longer than a blade spool in a same diameter sized spatial area and, furthermore, the rewinding of the ruler blade is impelled by spring torque to thereby enhance tape ruler utility and performance.

REFERENCES:
patent: 2510939 (1950-06-01), Carlson
patent: 2997251 (1961-08-01), Chafin
patent: 3705962 (1972-12-01), Banister
patent: 4527334 (1985-07-01), Jones et al.
patent: 5094396 (1992-03-01), Burke
patent: 5134784 (1992-08-01), Atienza
patent: 5172486 (1992-12-01), Waldherr
patent: 6751883 (2004-06-01), Liao
patent: 6804899 (2004-10-01), Murray

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