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Class Information
Number: 33/756
Name: Geometrical instruments > Distance measuring > By flexible tape > Cord type
Description: Subject matter wherein a measuring means is in the form of a rope or thread.


Patents under this class:

Patent Number Title Of Patent Date Issued
7533472 Cable length sensor May. 19, 2009
7475491 Method and apparatus for coiling elongated articles Jan. 13, 2009
7451552 Electronic measuring tape Nov. 18, 2008
7395609 3-dimensional cable guide and cable based position transducer Jul. 8, 2008
7146743 Length measuring instrument Dec. 12, 2006
7103988 Digital measuring instrument having flexible measuring line Sep. 12, 2006
7059064 Measuring device Jun. 13, 2006
6978553 Right angle measuring device Dec. 27, 2005
6931743 Chalk line with selectively adjustable tip Aug. 23, 2005
6895679 Chalk line with handle reservoir May. 24, 2005
6877245 Measuring device Apr. 12, 2005
6868620 Digital measuring instrument having flexible measuring line Mar. 22, 2005
6785973 Measuring device comprising a movable measuring probe Sep. 7, 2004
6543152 Measuring cable travel sensor Apr. 8, 2003
6499225 Measuring cable-path sensor Dec. 31, 2002
6381863 Measuring cable travel sensor May. 7, 2002
6357133 Flexible rule rewinding device Mar. 19, 2002
6349482 Three position locking mechanism for a tape measure Feb. 26, 2002
6347462 Measuring cable travel sensor with housing Feb. 19, 2002
6253456 Basketball court layout device and method Jul. 3, 2001
6217077 Scoring system for horned and antlered game animals Apr. 17, 2001
6168107 Restraining means for limiting speeds of a measuring cable returning to a linear transducer which is a cable extension transducer Jan. 2, 2001
6154975 Measuring cable travel sensor for sensing travel of a moveable body under differential pressure conditions Dec. 5, 2000
6082014 Chalk line end Jul. 4, 2000
6023849 Laser beam focus and alignment method Feb. 15, 2000
6016609 Eze glide fish tape reel assembly Jan. 25, 2000
5950318 Laser beam focus and alignment method and apparatus Sep. 14, 1999
5937532 Releasable hook Aug. 17, 1999
5878505 Device for marking a measuring point Mar. 9, 1999
5761822 Measuring cord displacement transducer with shell-like housing Jun. 9, 1998
5603717 Method and apparatus for simplifying total hip arthroplasty Feb. 18, 1997
5581901 Lifesaving apparatus Dec. 10, 1996
5509616 Retractable chalk line device Apr. 23, 1996
5383285 Scale usable as life line Jan. 24, 1995
5286972 Photoelectric line measuring device with digital display Feb. 15, 1994
5280921 Sporting field layout system Jan. 25, 1994
5212875 Chalk line assembly having multiple lines and a motorized winding mechanism May. 25, 1993
5042613 Safety tracer for fire fighters Aug. 27, 1991
5042159 Chalk line retraction device Aug. 27, 1991
5036613 Portable gun range apparatus Aug. 6, 1991
5014437 Structure of an ink cup May. 14, 1991
4921507 Layout device May. 1, 1990
4819337 Chalk line marking device Apr. 11, 1989
4813145 Automatically retracting chalk line assemble Mar. 21, 1989
4773162 Mini electric inking box Sep. 27, 1988
4768290 Portable distance measuring device with pull out measuring filament Sep. 6, 1988
4765557 Chalk snap string device having improved brake means Aug. 23, 1988
4130940 Boom length sensing and indicating system with self-synchronization Dec. 26, 1978
4037326 Trolling apparatus Jul. 26, 1977



 
 
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