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Class Information
Number: 73/37.7
Name: Measuring and testing > With fluid pressure > Dimension, shape, or size > Moving specimen > Sheet or filament
Description: Subject matter in which the object under test is a sheet, cable or filament.










Patents under this class:
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Patent Number Title Of Patent Date Issued
7918124 Non-contact shape sensor and device for moving sheet material Apr. 5, 2011
7207208 Blown installation of optical fibres and method and apparatus for determining the length of a passage along which an optical fibre is to be blown Apr. 24, 2007
7204126 Blown installation of optical fibres and method and apparatus for determining the length of a passage along which an optical fibre is to be blown Apr. 17, 2007
6998021 Arrangement for paper machine, and blow box Feb. 14, 2006
6895811 Detection of small holes in laminates May. 24, 2005
6769297 Method and equipment for measuring tension of moving web Aug. 3, 2004
6743338 Method and measuring device for measuring at least one property of moving web Jun. 1, 2004
6662630 Method for measuring slide bearing pressure in a deflection-compensated roll with a fixed shell Dec. 16, 2003
6604418 Liquid-level detection method and device thereof Aug. 12, 2003
6494081 Method of measuring properties of paper, and arrangement in a paper measuring apparatus Dec. 17, 2002
6352615 Method and equipment in a paper/board machine for regulation of the difference of draw Mar. 5, 2002
6264793 Method and apparatus for measuring caliper of paper Jul. 24, 2001
6119506 Apparatus and method for determining transport properties of porous materials Sep. 19, 2000
6032517 Device and process for measuring the rigidity of flat mail Mar. 7, 2000
6029502 Positioning system with pressure measurement in the layer of air between the measuring head and the material being measured Feb. 29, 2000
5983707 Rotor for a shapemeter Nov. 16, 1999
5725737 Apparatus for the detection of holes and plugged spots Mar. 10, 1998
5697247 Apparatus for measuring the thickness and/or irregularity of slivers Dec. 16, 1997
5501100 Device for measuring the mass of fiber slivers Mar. 26, 1996
5412976 Apparatus for determining the air permeability of a cloth web May. 9, 1995
5351374 Method and an apparatus for the continuous crimping of thermoplastic threads Oct. 4, 1994
5317898 Method and apparatus for detecting thickness variation in sheet material Jun. 7, 1994
5308010 Method for eliminating imperfections in a wound web roll May. 3, 1994
5298073 Two sensor for determining spacing between surfaces Mar. 29, 1994
5243849 On-line caliper gauge Sep. 14, 1993
5226239 Aerodynamic caliper gauge Jul. 13, 1993
5203201 On-line web filtration efficiency test method Apr. 20, 1993
5094718 Method and apparatus for control of web flutter Mar. 10, 1992
5052233 Method and apparatus for measurement of web tension Oct. 1, 1991
4995271 Appartaus for determining the permeability of a web to air Feb. 26, 1991
4992142 Method for determining amplitude and frequency of web flutter Feb. 12, 1991
4991425 Portable gauge for measuring air flow in a papermaking machine Feb. 12, 1991
4979389 Method and apparatus for detecting surface flaws in electrical cable plastic jacketing Dec. 25, 1990
4969360 System for measuring the cyclic speed and rotational position of a traveling looped belt Nov. 13, 1990
4968386 Apparatus for determining amplitude and frequency of web flutter Nov. 6, 1990
4940221 Suction-type sheet-separating device for a feeder of a printing press Jul. 10, 1990
4936566 Apparatus for picking up a proper number of fabric workpieces Jun. 26, 1990
4892621 Method and device for measuring permeability/penetrability of fabric in a paper machine Jan. 9, 1990
4877485 Sheet inspection station with pneumatic sheet guide Oct. 31, 1989
4864853 Apparatus for measuring the thickness of fibre slivers Sep. 12, 1989
4825030 Device and process for preventing the breaking of a metal wire Apr. 25, 1989
4809527 Shapemetering apparatus for continuous monitoring and/or correction of the profile and flatness of rolled metal strip and the like Mar. 7, 1989
4768376 Polyethylene coating adhesion testing Sep. 6, 1988
4756183 Method and apparatus for measuring air permeability of a wall-like or sheet-like element Jul. 12, 1988
4730481 Device for testing the air permeability of an article Mar. 15, 1988
4711121 Method and equipment for detecting pinholes of hollow filament Dec. 8, 1987
4696185 Method and apparatus for controlling the dye receptivity of textiles Sep. 29, 1987
4676091 Method and device for continuous measurement of porosity Jun. 30, 1987
4672841 Measuring head for measuring the porosity of a moving strip Jun. 16, 1987
4647855 Pneumetic surface follower with position restoring force Mar. 3, 1987

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