Tape reel and detector assembly for an electronic combined digital scale and calculator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 1, 1980
Grant Date -
N/A
app pub date -
Nov 23, 1977
filing date -
Nov 29, 1976
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spring loaded reel is provided for accommodating and storing an extensible tape member which is useful in identifying the length of an object to be measured while being pulled out of an electronic combined digital scale and calculator. A plurality of holes are provided in the body of the spring loaded reel to detect the movement of the extensible tape member. A photo detector is positioned associated with the spring loaded reel to sense the rotation of the spring loaded reel in unison with the extensible tape member and to thereby provide counting signals. The counting signals are manipulated in a processor circuit included within the electronic digital scale and calculator to identify the movement of the extensible tape member.
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