U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Fenstermacher, David


Primary examiner statistics: 776 patents; average approval time: 776 days
Assistant examiner statistics: 359 patents; average approval time: 776 days

Patents as Assistant Examiner


1                  
NumberTitleIssue Date
6196079Cable driven automotive gear lever joint mechanism
A cable driven automotive gear lever joint mechanism for operating a coupling cable and a selection cable having a movable set including a ball joint housing having a lever arm extending therefrom rotatably and pivotally mounted onto a stationary ball joi...
03/06/2001
6142032Adjustable anti-backlash nut assembly
An anti-backlash nut assembly for translational movement along the axis of a leadscrew in response to rotational movement of the nut assembly relative to the leadscrew. The nut assembly comprises (i) a primary nut having an internal thread which mates wit...
11/07/2000
6128970Force feed back manipulator employing wires and spools
A manipulator having six degrees of freedom includes a moving plate having six moving points arranged with substantial equal angles therebetween, an upper fixed plate having six upper fixed points arranged with substantial equal angles therebetween, the u...
10/10/2000
6119542Compact toothed wheel gearing with large gear ratio
A compact gear system that includes an input shaft (28), an output shaft (1) and gear wheels which drivingly connect the same, wherein the output shaft (1) is journalled in a gear housing (2). The output shaft (1) is hollow and has pins (5a) which project...
09/19/2000
6112614Brake lever stroke adjusting mechanism
A brake lever arm is mounted to a base member, with the base member fixed to a bicycle handlebar. The lever arm is pivotal about a pivot point on the base. The lever arm includes an adjusting mechanism that adjusts the position of the lever arm when the l...
09/05/2000
6105452Locking device for a selector lever
A locking assembly for a selector lever of an automatic gearbox. A the locking device acts upon a transmission member situated between the selector lever and the automatic gearbox. The selector lever is connected in a first gear-shift gate to the transmis...
08/22/2000
6095012Steering column for a motor vehicle
A steering column for a motor vehicle includes a support element fixedly attachable to a motor vehicle body, a steering column jacket located between the two legs of the support element, a coupling bolt arranged transverse to a steering shaft axis and ext...
08/01/2000
6092434Ball screw device of ball-circulating-part embedded type
A ball screw device of a ball-circulating-part embedded type includes: a screw shaft having a helical thread groove on an outer peripheral surface thereof; a ball nut having a thread groove provided on an inner peripheral surface thereof in correspondence...
07/25/2000
6065364Stopper for use in an industrial robot
A stopper includes a frame (51) fixed to a mount base (1) of an industrial robot, a retaining shaft (52) which is fixed to the frame (51) in an upright position in relation to the plane of rotation of the turning base (2), a rod-shaped engagement lever (5...
05/23/2000
6062099Robot for handling
A robot for handling comprises at least four bosses (20a, 20b, 20c, 20d) coaxially provided and displaced from each other axially of the center of rotation to permit independent rotation, arms (21a, 21b, 21c, 21d) provided on the bosses, respectively, lin...
05/16/2000
6058795Adjustment device for automatically operating a transmission
An adjustment device for automatically operating a vehicle transmission, includes an actuator to operate a gear input part that, depending upon a desired gear, assumes a position corresponding to that gear. An emergency operating device is connected to th...
05/09/2000
6055882Twist-grip shifter for bicycles
A twist-grip shifter for bicycles having a twist grip, which twist grip includes an outer grip part and an inner twist part. The twist grip has an area with a small diameter, a transitional area, and an area with a large diameter, and the twist grip can b...
05/02/2000
6047612Rotary bearing and drive mechanisms
A rotary bearing has a pair (32,40) of bearing members, one of which has convex (34) and planar (36) surface portions, and the other of which has concave (42) and planar (44) surface portions. The convex and concave surface portions and the planar surface...
04/11/2000
6047610Hybrid serial/parallel manipulator
A six degree of freedom structure forming a robotic manipulator, consisting of two five-bar linkages (30 and 80) set on rotatable base linkages (18 and 58); the output points (44 and 94) of the five-bar linkages (30 and 80) are attached to a rigid payload...
04/11/2000
6041892Oil pump for outboard motor
An oil pump for a lubricating system of an outboard motor is disclosed. The motor has a cowling defining an engine compartment, a water propulsion device, and a guide member having an upper surface and a lower surface, the guide member positioned in the c...
03/28/2000
6030311Control system for a continuously variable transmission
A control system for a toroidal type continuously variable transmission which incorporates a toroidal continuously variable gear mechanism comprising an input and an output toroidal disk and a roller disposed between the input and output toroidal disks an...
02/29/2000
6023989Transmission device for converting a torque between rotary movement and linear movement
A transmission device for converting a torque from rotary to linear movement includes a rack having a plurality of teeth and a pinion having rollers which mesh with the teeth of the rack, with pressurization provided therebetween. The rack has an arcuate ...
02/15/2000
6023991Ball screw lubricated with oil-containing polymer
A ball screw comprising a screw shaft, a ball screw nut, a plurality of balls contained in the ball screw nut which is in threadable engagement with the shaft so that it is capable of relative movement in the linear axial direction as guided by the rollin...
02/15/2000
6021868Mechanical transmission cooling and lubrication using associated engine systems
A cooling and lubrication system for a mechanical change gear transmission includes a first conduit for providing pressurized lubricating fluid from the engine and a second conduit for returning lubricating fluid to the engine. Lubrication may be provided...
02/08/2000
6012351Rotary indexing shifter
A method and apparatus for shifting gears in a multi-speed manual transmission. Shifting is accomplished through translation of a linear axial movement of a rotary channel cam indexer to an angular rotation of a rotary channel cam. The rotary channel cam ...
01/11/2000
6012550Bypass device for automatic transmission fluid provided with a thermal expansion bar
A bypass device for ATF (automatic transmission fluid) is disclosed. The bypass device of this invention has a valve housing with a plurality of ports. A spring-biased valve spool is movably received in the housing, while the thermal expansion bar is inse...
01/11/2000
6012349Compatible polymeric means for communicating power and motion
A system for transmitting power and motion is presented in which at least one component for transmitting power and motion communicates power and motion to another component in which two means are articles of polyketone polymer. In one aspect of the invent...
01/11/2000
6006618Starter motor with rear bracket elements fixed by through-bolts
A starter motor has a rotating armature with a rotating shaft on which a groove is formed, a rear bracket, and a cylindrical-shape yoke connected to a front bracket which supports a pinion shaft. A holder washer member is inserted rotatively in the groove...
12/28/1999
6003635Portable device and method for enhanced recovery of lubricants from engine sumps and the like
A device for recovering fluid from a reservoir having a lower drain. The device includes a first coupling connectable to a drain of a reservoir and having an internal passage for fluid flow therethrough. A conduit has one end connected to the first coupli...
12/21/1999
6003397Rotary output transmitting structure with a slidable washer
A slidable washer (30) has a cylindrical part and a plane part joined thereto. The cylindrical part is placed between an inner circumferential face of a gear wheel (24) and an outer circumferential face of a boss part (23) of a gear housing (22) in order ...
12/21/1999
6003409Play-free device for driving a rotary table
Two separate drive systems for driving a rotary table about an axis of rotation relative to a support member within a predeterminable angular segment. The first drive system can move the rotary table into a starting position and the second drive system is...
12/21/1999
6000292Actuator
An actuator which makes it possible to avoid adhesion of dust or the like to a driving force-transmitting member, wipe out the fear of stop or breakage thereof, and avoid leakage of dust or the like to the outside. Fixing blocks 26a, 26b are slidably prov...
12/14/1999
6000500Oil pump for compressor
A compressor has a piston attached to an eccentric part of a rotary shaft for being reciprocated to compress refrigerant. In order to provide lubricating oil to the shaft, an oil paddle is mounted in a hole of the eccentric part for pumping oil from the b...
12/14/1999
5996437Precision motion stage with single guide beam and follower stage
An XY stage for precision movement for use in aligning a wafer in a microlithography system. A main stage supporting the wafer straddles a movable beam that is magnetically driven in a first linear direction in the XY plane. A follower stage, mechanically...
12/07/1999
5996436Single-shaft operating device for actuating a shift mechanism including shift interlock means
An operating device for actuating the shift mechanism in multi-ratio transmissions in motor vehicles, incorporating a selector shaft (2) which is largely moveable in parallel to the gear axes and arranged in a transmission housing, this selector shaft (2)...
12/07/1999
5996431Twist action friction drive
A twist action roller friction drive comprises a rotating drive bar which drives in rotation a roller the axis of rotation of which is inclined relative to the axis of a rotationally fixed driven member with which the roller engages. The inclined roller c...
12/07/1999
5992253Method and apparatus for converting reciprocating motion to single direction rotational motion
An apparatus for converting reciprocating motion to single direction rotational motion that includes a frame, a shaft supported by the frame for rotation relative to the frame, a first one-way clutch mounted on the shaft, a first pinion mounted on the fir...
11/30/1999
5992569Bearing grease packer
A grease packer (10) for packing grease into a bearing (15) has an inner race and an outer race, having a non-rigid bearing holder (11) that defines a conical chamber (12) having a first open end (13) and a second open end (14) through which the bearing (...
11/30/1999
5993339Chain tensioner with a spring and hydraulic fluid acting on both sides of a piston
A chain tensioner for tensioning a chain in a drive of an internal combustion engine comprises a piston displaceable within a chamber. The piston is biased by a compression spring so that it protrudes from the housing towards the chain to provide the tens...
11/30/1999
5992259Worm/wormgear transmission and apparatus for transmitting rotation utilizing an oscillating input
A new type of worm/wormgear transmission with number of wormgear teeth 11 and less described. The worm gear is a split-worm gear. The ratio of worm gear teeth to worm thread less than 11. A unique transmission utilizes a self-locking worm and worm gear co...
11/30/1999
5992568Rail lubricator mounted to a track vehicle
A device for lubricating a track or a rail that is adapted to be mounted to a wheeled vehicle. The device includes a frame member adapted to be mounted to the vehicle and an arm pivotally attached to the frame member. A roller, which is adapted to ride on...
11/30/1999
5988006Method of moving objects with self-locking mechanical transmission
A method of moving of moving objects with a self-locking mechanical transmission including a driving element and a driven element with a controlling element selected from the driving element and the driven element, the method comprises steps of moving the...
11/23/1999
5988009Control device for a gearbox of a vehicle with actuator and cam activated selection of gears
A control device for a gearbox of a vehicle is provided with fixed support. A control element carried by the fixed support is able to move along a first axis to carry out a gear rank selection operation and also able to rotate about the first axis to carr...
11/23/1999
5988005Electric power steering unit
An electric power steering unit comprises a rack-shaft 2 to be coupled to the guiding wheels of a vehicle, a housing A for slidably containing the rack-shaft 2 and holding therein a coupling section 6 for causing the teeth of the rack-shaft 2 to engage th...
11/23/1999
5988010Adjustable steering column for motor vehicle
A steering column including a mast jacket adjustable vertically and horizontally and clamp. The clamp includes a housing having a pair of piston bores and a control shaft bore intersecting each of the piston bores. A control shaft is rotatable in the cont...
11/23/1999
1                  
 
Sign InRegister
Username  
Password   
forgot password?