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Class Information
Number: 74/424.72
Name: Machine element or mechanism > Gearing > Directly cooperating gears > Spiral > Screw and nut > Plural longitudinally variably spaced nuts
Description:


Patents under this class:

Patent Number Title Of Patent Date Issued
7552657 Long-span lead screw assembly with anti-backlash nut Jun. 30, 2009
7474176 Sliding screw arrangement Jan. 6, 2009
7458292 Catch nut Dec. 2, 2008
7219570 Long-span lead screw assembly with anti-backlash nut May. 22, 2007
7143661 Leadscrew mechanical drive with differential leadscrew follower structure and brake Dec. 5, 2006
6880416 Device for adjusting parts which can move in relation to each other Apr. 19, 2005
6691587 Actuator Feb. 17, 2004
6516680 Power steering apparatus Feb. 11, 2003
6467362 Reinforced lead screw with spring biased anti-backlash nut Oct. 22, 2002
6422101 Reinforced lead screw with springless anti-backlash nut Jul. 23, 2002
5909835 Gripper feeder for metal strip Jun. 8, 1999
5906136 Ball screw lubricated with oil-containing polymer May. 25, 1999
5751083 Magnetic screw conveying apparatus May. 12, 1998
5732596 Anti-backlash nut assembly Mar. 31, 1998
5697252 Preliminary thrusting mechanism for a screw device Dec. 16, 1997
5644951 Feed screw apparatus and precise positioning and fine feed system Jul. 8, 1997
5634376 Transfer unit Jun. 3, 1997
5582072 Preliminary thrusting mechanism for a screw device Dec. 10, 1996
5531557 Drive screw system with nested mobile supports Jul. 2, 1996
5513741 Proportional spacing mechanism with assisted drive May. 7, 1996
5510937 Apparatus for adjusting intermeshing angle in feed screw mechanism Apr. 23, 1996
5367915 Automatic pressure control device for a ball screw Nov. 29, 1994
5306136 Mold clamp driving apparatus Apr. 26, 1994
5129279 Flexible robotic limb Jul. 14, 1992
4799734 Linear device for rapidly adjusting and immobilizing a movable part relative to a fixed part Jan. 24, 1989
4730503 Linear differential mechanism Mar. 15, 1988
4516509 Office furniture with an adjustable tabletop in modular design for setup at the work place May. 14, 1985



 
 
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