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...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.

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Class 226/45 - Detector means


Subclass of Class 226 - Advancing material of indeterminate length
Definition: Device in which the means to sense the path or position
No. of patents: 244
Last issue date: 07/15/2008


1              
NumberTitleIssue Date
7398903Wire-feeding device for a wire-processing machine
A wire feeding device for very fine wire includes a straightening unit, a transporting unit, a wire buffer, and a wire guide arranged on a table on which a swivel unit with a wire drive is also arranged. The swivel unit serves wire-processing stations of a wire-proc...
07/15/2008
7195585Cushioning conversion machine and method with stock usage monitoring
A method of determining a total amount of stock material passing through a cushioning conversion machine over a period of time during which a plurality of three-dimensional cushioning products are made. The method includes the acts of providing a sheet stock materia...
03/27/2007
7143917Configurable paper transport
A configurable paper transport having a frame having at least one station for securing a non-driven paper web process device. The configurable paper transport defines a paper web path through the non-driven paper web process device, or devices. The configurable pape...
12/05/2006
7134584Control method for guiding the movement of materials to be transported
The invention relates to an open-loop control process for the motional guidance of conveyed material (32) in a conveying device (30) and to a corresponding conveying device (30). The conveying device (30) has a movable means (36) f...
11/14/2006
7131479Window covering having indicator markings
A covering material for a window covering assembly is provided that includes a plurality of formations, wherein an indicator marking is placed on the covering assembly at a known increment of the formations. The method of making the covering material includes, provi...
11/07/2006
7118062Web handling with tension sensing and adjustment
A system of detecting and adjusting the normal force exerted by a web material around the circumferential surface of a cylinder is provided. Sensors associated with the cylinder surface are wired to a processor that compares detected normal web forces with a set val...
10/10/2006
7104712Roll sheet holder and tape printer
A tape printer includes a holder support member at one side end in a roll sheet holder storage part in a direction substantially perpendicular to a feeding direction. In the holder support member, a mounting piece which is substantially rectangular in section and fo...
09/12/2006
7073696High repeatability tape feeder for electronic component carrier tapes
A tape feeder for precisely advancing a component-carrying tape to present sequential electronic components disposed at a pitch in the tape to a pick-and-place machine. A feed sprocket and an encoder disc are operatively associated with each other and rotatably disp...
07/11/2006
7067039Method and equipment in connection with a paper machine or a paper web finishing apparatus
A variable representing runnability of a paper web to be manufactured with a paper machine or processed with a finishing apparatus is measured and the speed difference between operational groups of the paper machine and/or the finishing apparatus is adjusted on the ...
06/27/2006
7057157Photosensor device and disk inspection apparatus using it
A photosensor device is provided which includes a light-applying fiber to apply an inspection light to a subject to be inspected; a light-receiving fiber to receive a reflected light from the subject to be inspected; a laser beam source to emit the inspection light ...
06/06/2006
7036702Device and method for feeding taped electrical components
A drive wheel for a tape accommodating the components is provided with an angle measuring device. This allows for a finely tuned rotational adjustment of the drive wheel. The pick-up position of the components can be detected by a scanning optical system and can be ...
05/02/2006
7014083System and method for controlling the width of web material
A system and method for controlling the width of a web material supplied to a machine by adjusting the tension of the web material. An operator defines a target web width via an input device. The input device generates a reference signal representative of the target...
03/21/2006
7012213Reel wire type of welding device for spot welding
A reel wire type of welding device for spot welding includes a first guiding portion rotatably mounted in a front end of the welding device such that the wire is supported and guided in a working area in which the wire contacts a target object. At least one second g...
03/14/2006
7011464Apparatus for detecting an end portion of a recording medium
A printer having a hopper without shaft which performs a print operation on a roll of continuous paper. Detection marks are provided in flanges provided in supported members removably attached to the continuous paper, and the presence/absence of the detection mark i...
03/14/2006
6951335Reciprocating linear encoder
A reciprocating linear encoder includes a linear encoder and a sensor. The linear encoder is configured to latch, follow and release print media in a periodic motion. The sensor is responsive to movement of the linear encoder, and is configured to output a signal as...
10/04/2005
6923071Apparatus for rating a torsion bar
An apparatus for determining the spring rate of a torsion bar for an automotive vehicle includes a frame having two channels which cross between the ends of the frame. Each channel is configured to receive a torsion bar—one when a bar is to be twisted clockwise an...
08/02/2005
6902090Tape feeder, electronic component mounting apparatus using the same, and method of feeding electronic components
A tape feeder feeds electronic components by advancing a tape intermittently. The tape feeder comprises a motor controller for controlling a motor, which rotatively drives a sprocket to advance the tape, and a communication unit for receiving a control signal from a...
06/07/2005
6851593System and method for controlling the strain of web material
A system and method for controlling the strain of a web material supplied to a machine by adjusting a tension force applied to the web material. An operator defines a target web strain via an input device. A speed sensor senses the speed of the web material supplied...
02/08/2005
6745976Data tape speed tachometer using a porous roller bearing
A tape roller bearing is provided that prevents the development of an air film between the roller surface and the tape. The spool surface is made from porous material so that air flows through the spool surface. The porous material vents air uniformly over the rolle...
06/08/2004
6659006Tension control device for a printing press
A tension control device for a printing press having an adjustment roller, with a web of the press passing from a supply roll of the web to the adjustment roller. Means are provided for measuring the tension on opposed sides of the web passing downstream ...
12/09/2003
6641017Process and device for laterally positioning a material web
Process for handling a material web that includes moving the material web along with at least one circulating endless belt in a circulation direction, monitoring movement of an edge of said at least one circulating endless belt, and monitoring a position ...
11/04/2003
6637634Methods for calibration and automatic alignment in friction drive apparatus
A friction drive apparatus includes an edge detection system for determining a lateral position of a strip material advancing in a longitudinal direction. The edge detection system includes a first sensor and a second sensor for monitoring the lateral pos...
10/28/2003
6619526High-speed tape feeder for pick and place machines
An automatic tape feeder for use in component placement machines includes a novel sprocket wheel for driving component carrier tapes to a gross position by an electric drive motor. Before the electric drive motor reaches the final position desired, it is ...
09/16/2003
6604661Method and apparatus for detecting web breaks
In web-fed rotary printing machines having a plurality of operating units arranged one after another, each unit having synchronously driven elements that interact directly or indirectly with the printing-material web, high reliability and short response t...
08/12/2003
6598529Method and device for detecting faults during transport of a web
A method for detecting faults during transport of a web in a web-fed printing machine, wherein web speed is determined by contact-free measurement, in accordance with the Doppler principle, includes the steps of: by applying microwaves, determining a firs...
07/29/2003
6564983Apparatus for controlling web tension
An apparatus for controlling the web tension in a perforation-welding system for making bags from synthetic resin foil webs in which whistling noises are eliminated by passing the web over a wall of a polygonal duct having an air outlet opening to which c...
05/20/2003
6530511Wire feed mechanism and method used for fabricating electrical connectors
Wire from a wire source is supplied to create a predetermined amount of slack wire in a predetermined configuration and to maintain that slack wire configuration. Some of the slack wire is withdrawn from the configuration and advanced for use in forming a...
03/11/2003
6501498Thermal printer
A thermal printer is disclosed which includes a housing, a chassis assembly with a printer mechanism securely mounted in the housing and a head frame assembly having a thermal head and rotatably mounted on the chassis assembly by a shaft. The shaft is dis...
12/31/2002
6467143Automatic door panel producing apparatus
An apparatus and method for automatically producing door panels in a single line in order to enable continuous production are provided. In the apparatus, a first uncoiler supplies the wound inner plate material. A first leveler regulates a flatness of the...
10/22/2002
6460748Device for adjusting the transverse position of a strip of packaging material
A device for adjusting the transverse position of a strip of packaging material on a packaging machine for producing packages containing a pourable food product, the device having a slide movable crosswise with respect to the strip and carrying a gripping...
10/08/2002
6433499Device and method for automatic tension transducer calibration
An apparatus for calibrating a tension transducer for a web includes a pair of nip rollers and a motor for driving at least one of the pair of nip rollers, the motor having at least one roller output being a function of at least one of a motor torque and ...
08/13/2002
6428222Sensor for identifying marks on a ribbon
A reflective type light sensitive sensor assembly is used for sensing the position of marks on a surface moving past the sensor. A typical showing is in relation to sensing marks on a ribbon used during printing operations, or lamination operations. The s...
08/06/2002
6415971Apparatus for handling and texturizing yarn having enhanced false twister, electro-mechanical yarn detector, and yarn take-up distance extender and associated methods
An apparatus and methods for handling and texturing yarn are provided. The apparatus preferably includes a yarn supply positioned to supply a plurality of strands of yarn, a false twister positioned downstream from the yarn supply for imparting a false tw...
07/09/2002
6402005Process and device for handling a material web
Process and device for handling a material web. The process includes moving the material web, at least in stretches, along with at least one circulating endless belt in a circulation direction and monitoring the movement of the edge of the at least one ci...
06/11/2002
6398358Textile ink jet recording method with temporary halt function
An ink jet textile printing method forms an image on cloths in an image forming operation by repeating a step of applying ink on the cloths from an ink discharge port of a recording head, the recording head relatively main-scanning to form the image in a ...
06/04/2002
6311886Position and direction sensing system for an inspection and handling system
The invention provides a pick and place system having a taper module that determines both placement and direction of the carrier tape by optically counting sprocket holes as they move in either direction. Compartments in a carrier tape are serially spaced...
11/06/2001
6305592Dye machine festooner
A festooner transfers cloth between a dye machine and a transfer box utilizing a driven roller and a laterally mounted idler roller creating a vertical interstice to effect a vertical discharge of the cloth into a laying funnel. The driven roller is groov...
10/23/2001
6302308Apparatus for handling and texturizing yarn having enhanced false twister, electro-mechanical yarn detector, and yarn take-up distance extender and associated methods
An apparatus and methods for handling and texturing yarn are provided. The apparatus preferably includes a yarn supply positioned to supply a plurality of strands of yarn, a false twister positioned downstream from the yarn supply for imparting a false tw...
10/16/2001
6293453Apparatus and method for controlling drag roller
An apparatus for and a method of controlling a drag roller in a printing machine to move a web with no shift of a printing position and enhance the printing quality remarkably, even when the drag roller varies in diameter due to its temperature change. Fr...
09/25/2001
6276586Methods for calibration and automatic alignment in friction drive apparatus
A friction drive apparatus includes an edge detection system for determining a lateral position of a strip material advancing in a longitudinal direction. The edge detection system includes a first sensor and a second sensor for monitoring the lateral pos...
08/21/2001
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