| Patent Number |
Title Of Patent |
Date Issued |
| 7552657 |
Long-span lead screw assembly with anti-backlash nut |
June 30, 2009 |
| A lead screw assembly having a lead screw rotatable within a hollow tubular portion of a reinforcing rail. A nut engages with threads of the lead screw and is movable along the reinforcing rail. The lead screw includes plurality of first threaded portions having an outer diameter and |
| 7219570 |
Long-span lead screw assembly with anti-backlash nut |
May 22, 2007 |
| A lead screw assembly having a lead screw rotatable within a hollow tubular portion of a reinforcing rail. A nut engages with threads of the lead screw and is movable along the reinforcing rail. The lead screw includes plurality of first threaded portions having an outer diameter and |
| 6467362 |
Reinforced lead screw with spring biased anti-backlash nut |
October 22, 2002 |
| An anti-backlash nut is assembled on a reinforced lead screw for bilateral motion lengthwise of the lead screw as the screw is rotated. A hollow, elongate reinforcing rail extends lengthwise of and surrounds the lead screw. A slot in the rail extends lengthwise of the central axis of the |
| 6422101 |
Reinforced lead screw with springless anti-backlash nut |
July 23, 2002 |
| An anti-backlash nut assembly is on a reinforced lead screw having a threaded lead screw rotatable about a central axis. A hollow, elongated reinforcing rail extends lengthwise of and surrounding the lead screw. The reinforcing rail has a slot extending lengthwise of the central axis. Th |
| 6415673 |
Reinforced lead screw with anti-backlash nut |
July 9, 2002 |
| An anti-backlash nut is assembled on a reinforced lead screw for bilateral motion lengthwise of the lead screw as the screw is rotated. A hollow, elongate reinforcing rail extends lengthwise of and surrounds the lead screw. A slot in the rail extends lengthwise of the central axis of the |
| 6240798 |
Reinforced anti-backlash nut with graduated thread depth fingers |
June 5, 2001 |
| An anti-backlash nut has flexure members which are continuously biased inwardly against a lead screw by a force-applying sleeve which acts on ramps on the flexure member. The spline means include means on the longitudinal flexure members and the force applying sleeve to impart rigidi |
| 6202500 |
Reinforced lead screw with anti-backlash nut |
March 20, 2001 |
| An anti-backlash nut assembly is disclosed on a reinforced lead screw. The mechanism includes a hollow, elongate reinforcing rail surrounding a lead screw and an anti-backlash nut assembly movable along the reinforcing rail. The anti-backlash nut assembly has at least one portion project |
| 6131478 |
Anti-backlash nut assembly |
October 17, 2000 |
| An anti-backlash nut, movable along a rotatable screw. The nut has internal threads complementary to the threads in the screw. The nut has two nut halves movable as a unit and also rotatable relative to each other on the screw, and are connected to the nut halves to induce their relative |
| 6117249 |
Treating metallic machine parts |
September 12, 2000 |
| A method of treating a metallic machine part to increase wear life and to change surface appearance comprising the steps of roughening the surface, thereafter changing its color by case hardening and, subsequently, increasing the lubricity of the case hardened surface by coating the |
| 6099166 |
Longitudinal stabilizer for vibration reducing bushing |
August 8, 2000 |
| A rider having a centralizing or radially stabilizing bushing that reduces vibration and a longitudinal stabilizer element or lip to prevent longitudinal translation of the stabilizing bushing. The centralizing bushing maintains contact, alignment, and general stability between the b |
| 6041671 |
Miniature anti-backlash nut assembly |
March 28, 2000 |
| An anti-backlash mechanism is described in the form of a pair of nuts or nut halves with internal threads complementary to the threads on a lead screw. The mechanism is traslated by rotation of the screw. One of the nuts has an outer cantilevered wall with inner gear teeth which engage |
| 5913941 |
Reinforced lead screw |
June 22, 1999 |
| The reinforced lead screw has a hollow, elongate reinforcing rail surrounding a lead screw and a nut-bearing movable along the reinforcing rail. The nut-bearing has a portion projecting through a slot in the reinforcing rail and includes threads to engage the threads on the lead scre |
| 5913940 |
Adjustable preload anti-backlash nut |
June 22, 1999 |
| An anti-backlash nut designed to translate along a lead screw in two longitudinal directions is disclosed. The nut has one or more longitudinal flexure members each having one end fixed to the nut and the other one free floating. Internal threads are formed at the free floating ends of |
| 5732596 |
Anti-backlash nut assembly |
March 31, 1998 |
| An anti-backlash nut, movable along a rotatable screw. The nut has internal threads complementary to the threads in the screw. The nut has two nut halves movable as a unit and also rotatable relative to each other on the screw. Means are connected to the nut halves to induce their relati |
| 5601372 |
Vibration reducing brushing |
February 11, 1997 |
| A centralizing bushing associated with a shaft for reducing noise and fluctuations between the bushing and the shaft when they are moving relative to each other. The bushing is mounted in the rider and includes a bearing engagable with the shaft. There are high friction, elastomeric |
| 5027671 |
Reinforced anti-backlash nut |
July 2, 1991 |
| An anti-backlash nut has flexure members which are continuously biased inwardly against a lead screw by a force applying sleeve which acts on ramps on the flexure member. The spline means include means on the longitudinal flexure members and the force applying sleeve to impart rigidi |
| 4974464 |
Motorized anti-backlash linear actuator |
December 4, 1990 |
| A motorized anti-backlash actuator having an externally threaded rod (18) movable linearly while in rotational engagement with an inwardly threaded anti-backlash nut portion (10) and an armature (8) fixed to the nut and rotatable therewith. A field coil (4) (6) surrounds the armature (8) |
