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Class Information
Number: 404/120
Name: Road structure, process, or apparatus > Apparatus > Screed or drag > Reciprocating
Description: Screed device provided with means to move said screed back and forth along its extent while traversing the material.


Patents under this class:

Patent Number Title Of Patent Date Issued
7311466 Apparatus and method for subgrade preparation Dec. 25, 2007
RE39834 Apparatus and method for three-dimensional contouring Sep. 11, 2007
6860676 Machine for leveling materials on the ground Mar. 1, 2005
6672797 Linear transducer arrangement Jan. 6, 2004
6302619 Powered inertia propelled screed apparatus Oct. 16, 2001
6264397 Dual trowel blade assembly Jul. 24, 2001
6227760 Travel control device for vibrating plate compactor May. 8, 2001
6223495 Vibrating screed with rollers May. 1, 2001
6183160 Screeding apparatus and method incorporating oscillating attachment Feb. 6, 2001
6152647 Screeding method incorporating oscillating member Nov. 28, 2000
6129481 Screed assembly and oscillating member kit therefor Oct. 10, 2000
6022171 Apparatus and method for preparing a site and finishing poured concrete Feb. 8, 2000
5967695 Vehicle for repairing road surfaces Oct. 19, 1999
5779390 Device for levelling a layer of sand Jul. 14, 1998
5328295 Torsional automatic grade control system for concrete finishing Jul. 12, 1994
5281050 Power screed Jan. 25, 1994
5224793 Screeding apparatus Jul. 6, 1993
5061115 Adjustable automatic floating trowel apparatus for slip forming machines Oct. 29, 1991
4869618 Distributor for concrete screed, and screed assembly comprising same Sep. 26, 1989
4838730 Portable screed with floating screed plate Jun. 13, 1989
4798494 Floating vibrational screed Jan. 17, 1989
4752156 Laser-guided portable screed Jun. 21, 1988
4708520 Concrete finishing machine with adjustable auger unit Nov. 24, 1987
4685826 Vibratory screed including a laterally displaceable oscillating strike-off Aug. 11, 1987
4648741 Vibratory screed including a spreading device for leveling and distributing plastic concrete in front of the screed Mar. 10, 1987
4641995 User-mounted concrete screed Feb. 10, 1987
4614486 Portable apparatus for compacting and leveling a poured floor Sep. 30, 1986
4591291 User-mounted concrete screed May. 27, 1986
4586889 Concrete-finishing machine May. 6, 1986
4470783 Apparatus for screeding and leveling Sep. 11, 1984
4465397 Track surface laying Aug. 14, 1984
4427358 Sectional concrete screed machine Jan. 24, 1984
4412803 Adjustable support bracket for concrete finishing equipment Nov. 1, 1983
4408978 Advancement apparatus for concrete screed Oct. 11, 1983
4345852 Leveling device for asphalt finisher Aug. 24, 1982
4340351 Vibratory concrete screed with eccentric drive shaft Jul. 20, 1982
4316715 Vibratory concrete screed having an adjustable extension bracket Feb. 23, 1982
4213749 Portable vibrating concrete screed Jul. 22, 1980
4068970 Concrete finishing machines Jan. 17, 1978



 
 
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