Geometrical instruments – Area integrators – Electrical
Patent
1987-01-15
1988-06-07
Martin, Jr., William D.
Geometrical instruments
Area integrators
Electrical
242 848, 2421072, G01B 310, B65H 7548
Patent
active
047487461
ABSTRACT:
A tape measure having a recoilable tape mounted within a cartridge. The free end of the recoilable tape extends out of the mouth and has a finger-grip extending therefrom to permit the tape to be extended from within the cartridge through said mouth. A spring is mounted in the cartridge to permit the tape to be recoiled and retracted within the cartridge through said mouth and a shock absorber is located within the cartridge to absorb the shock of the retracting tape.
REFERENCES:
patent: 3905114 (1975-09-01), Rutty
patent: 4142693 (1979-03-01), Czerwinski
patent: 4153996 (1979-05-01), Rutty
patent: 4479617 (1984-10-01), Edwards
patent: 4603481 (1986-08-01), Cohen et al.
Great Neck Saw Manufacturers, Inc.
Martin, Jr. William D.
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