Geometrical instruments – Distance measuring – By flexible tape
Patent
1998-08-05
2000-10-31
Fulton, Christopher W.
Geometrical instruments
Distance measuring
By flexible tape
33767, 33761, 242381, G01B 310, B65H 7548
Patent
active
061383732
ABSTRACT:
An improved measuring tape which allows both inside and outside dimensions to be read directly from the same printed face of the tape. The tape measure comprises a case having a tape coiled inside the case and extending out of the case through a slot in the case. Inside the case is a guide wheel which guides the tape along a bottom wall of the case. The front wall of the case is transparent so that the graduations on the tape can be seen adjacent to the bottom wall. A pointer on the case points to the graduations such that when the tape is fully retracted, the pointer points to a measurement corresponding to the width if the case. This enables the case and the tape to be used to make inside measurements. Another embodiment includes a lock which secures the tape at any extended position, and a brake which slows the tape on retraction and prevents damage to the tape or to the end hook.
REFERENCES:
patent: 4449302 (1984-05-01), Drechsler et al.
patent: 4649649 (1987-03-01), Fain
patent: 4663854 (1987-05-01), Miller et al.
patent: 5395069 (1995-03-01), Chen
patent: 5624085 (1997-04-01), Usami
patent: 5657551 (1997-08-01), Lin
patent: 5832622 (1998-11-01), Mann
Fulton Christopher W.
Ramsey William S.
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