...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.
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.
| Number | Title | Issue Date |
| 7320343 | Loom The invention relates to a loom comprising a warp thread tensioning device and a shedding device (12), which comprises pre-tensioned warp threads (4) in a first shedding position (F1). The loom also comprises a lifting device (38), wh... | 01/22/2008 |
| 7287553 | Leno cloth as well as method and weaving machine for production thereof A leno cloth is prepared, which comprises at least ground warp threads 1, leno warp threads 3 and weft threads 2, and in which the weft threads 2 and the ground warp threads 1 are arranged essentially interspace free. The weft thre... | 10/30/2007 |
| 7140399 | Shaft drive system for power loom shafts A novel shaft gear for harmonious engagement and disengagement of individual heddle shafts and for deriving their motion from the rotary motion of a single input shaft has a coupling system with two input elements. While one of the input elements serves to drive the... | 11/28/2006 |
| 7069960 | Method of controlling pile fabric loom A control technique is capable of adjusting a weight of a pile fabric by adjusting consumption of a pile warp at a proper range with a more simplified system. In a pile loom, a tolerance relative to a value associated with consumption of the pile warp is set, and th... | 07/04/2006 |
| 7011741 | Filtration apparatus operating features A pressure-filter apparatus includes at least one filtration chamber coupled with a source of slurry. The filtration chamber is also coupled with a source of fluid at an elevated pressure, which may be arranged in series or in parallel with a source of wash fluid. T... | 03/14/2006 |
| 6769456 | Device for separating warp yarns on a face-to-face weaving machine A device for separating warp yarns (16), (17) on a face-to-face weaving machine (13), comprising a separating means (1), (2) and a holding device (3,7,9,11), (4,8,9,12) which comprises a threaded adjusting means (1... | 08/03/2004 |
| 6725884 | Yarn tightening element for a textile machine A yarn tightening element for a weaving machine, comprising a passage (16) for a yarn (15) and a contact means (2) to transmit a tightening force to a yarn (15) moving along through this passage, the passage (16) being not bordered... | 04/27/2004 |
| 6696152 | Polypropylene wicker for weaving a bag A plurality of polypropylene wickers are made of a polypropylene film. The polypropylene film passes through a chill roller to decrease a temperature of the polypropylene film, and a cutting roller having a plurality of cutting blades to cut the polypropy... | 02/24/2004 |
| 6247504 | Device for tensioning and drawing back warp yarns coming from a creel to a weaving machine A device for tensioning and drawing back warp yarns brought from a creel to a weaving machine. The tensioning and drawing back device keeps tension and if necessary draws back warp yarns (2) led from a bobbin (1) to a weaving machine. A supporting body (6... | 06/19/2001 |
| 6220302 | Chambered leak repairing device and method A device method for repairing leaks in pressurized lines, particularly refrigeration lines, without having to drain the fluid from the line, thereby reducing the possibility of refrigerant contamination and/or loss, and providing protection to the environ... | 04/24/2001 |
| 6135163 | Method and apparatus for compensating warp thread tension or elongation variations during loom shedding Different groups of warp threads are subject to different variations of warp thread tension during shed changes, especially when weaving a fabric having portions such as fabric edges with different weave binding patterns. To provide different warp thread ... | 10/24/2000 |
| 6119732 | Warp thread consumption optimization apparatus for a weaving machine A weaving machine comprises an arrangement for adjusting or optimizing the consumption of warp thread. The weaving machine permits weaving of different widths for the woven material. First bobbins can be arranged next to one another, with synchronized rot... | 09/19/2000 |
| 6116292 | Bobbin pallets for a weaving device A weaving frame or module for supporting warp thread bobbins for a weaving device and for changing bobbins with the weaving modules and bobbin pallets, has bobbins that can, at least partly, be changed without causing any interruption or any disturbance t... | 09/12/2000 |
| 6016850 | Controlled warp tensioning during fabric weaving In the event of an interruption of the weaving process and in the case of weaving-technical operations, such as tabby weaving and unraveling, a trailing of warp thread bobbins and thus a trailing of warp threads which are withdrawn from the bobbins and fo... | 01/25/2000 |
| 6003564 | Weaving device for the production of a structure for a composite component Weaving device for producing a woven structure which is intended for the production of a composite component, including especially a component (5) for generating different speeds of movement for at least some of the warp yarns (FC). Component (5) includes... | 12/21/1999 |
| 5752549 | Work thread-tensioning and pull-back device for jacquard pile weaving machine creel A thread-tensioning and pull-back device for use with a weaving machine for controlling the tension of a series of warp threads pulled off from removable and replaceable bobbins arranged in rows in a weaving rack of a weaving machine is adapted to be loca... | 05/19/1998 |
| 5662146 | Warp feeding apparatus and method for multifiber flat carbon yarns A method and apparatus for supplying twist free flat warp containing a plurality of carbon fibers to a plurality of wefts in a weaving loom, wherein the warp is transversely removed from a plurality of bobbins and twisted along a longitudinal travelling d... | 09/02/1997 |
| 5649569 | Warp tension measuring apparatus A warp tension measuring apparatus for weaving machines or looms has a force sensor or pick-up (3) and a member (2) which is in active communication with the force sensor (3) to transfer a force acting on the members (2) onto the force sensor. The force s... | 07/22/1997 |
| 5615713 | Method for weaving a filter fabric belt for pressure filter apparatus The method of weaving a dimensionally stable fabric filter medium having particular use in a pressure filter apparatus. The fabric is woven with tension on the warp and weft yarns and the woven fabric is heat set outside the weaving loom to create a desir... | 04/01/1997 |
| 5598875 | Reeding method for 1/f fluctuation warp yarn distribution A weaving method for woven goods in which the warp yarns are disposed among reed dents of uniform spacing in a reed according to a sequence of numerical values having a 1/f fluctuation, thereby imparting a 1/f fluctuation to the arrangement of warp yarns.... | 02/04/1997 |
| 5538047 | Streakless fabric weaving A process by which rugs and other pile fabrics can be woven to incorporate large uninterupted areas of a single color without a streaking appearance. As a fabric is being woven and a yarn end is woven into the face of a fabric, before the distance of the ... | 07/23/1996 |
| 5503194 | Warp guiding device module for a series-shed weaving machine A warp guiding device which includes a holding device for mounting a number of warp guide bars (23) and driving devices (24) for moving the warp guide bars is integrally constructed so that it can be brought into and out of operational connection with a w... | 04/02/1996 |
| 5492152 | Creel with twisting device A creel for directly supplying twisted yarns to a machine (13) such as a loom or warper from a plurality of yarn bobbins (3) arranged on a creel (1) for holding non-twisted yarn (2). Two banks of bobbins (3), optionally contrarotate at a predetermined spe... | 02/20/1996 |
| 5421372 | Method and apparatus for weaving articles on a loom in a plurality of widths A method and apparatus for weaving woven articles in a plurality of widths includes the steps of providing a weaving machine having at least one weaving head and harnesses controllably guiding a multiplicity of warp strands between first and second path p... | 06/06/1995 |
| 5381835 | Wrap thread feeding magazine in a weaving machine A weaving machine for weaving fabric, felts and wires of different widths, comprises a warp thread magazine, first members for feeding warp threads into the weaving machine, and second members for executing the weaving functions in the weaving machine. Th... | 01/17/1995 |
| 5372164 | Quick change assembly for tire cord fabric looms A quick change assembly for a tire cord fabric loom utilizes a pattern of warp ends which are threaded through suitable harnesses. The pattern in the harnesses is placed in the loom and the individual warp ends are pulled back to a plurality of creel comb... | 12/13/1994 |
| 5259420 | Upper warp beam supporting assembly and method A method and apparatus for supporting upper warp beams of a loom wherein adjustable central support structures are provided for supporting upper warp beams of increased capacity. End supports are provided for allowing offset of the warp beams to accommoda... | 11/09/1993 |
| 5090452 | Prevention of weft streaks after loom start up In order to prevent the formation of weft streaks in cloth when a loom is restarted after a stoppage, the warp tension is reduced by a predetermined amount as soon as the stoppage occurs and the original warp tension is restored before restarting. The red... | 02/25/1992 |
| 5014756 | Pile warp tension control in a loom To operate the loom, one or more warp-tensioning elements is or are actuated by separate drives on an individual pick basis with free triggering and at loom speed. The warp tension can therefore be so modulated as to obviate deleterious tension peaks and ... | 05/14/1991 |
| 4789008 | Creel for loom A creel which can deliver untwisted yarns from bobbins in a weaving machine while at a same time twisting them or else twisting some of such untwisted yarns in the S twist and the remaining untwisted yarns in the Z twist with relative low investment for e... | 12/06/1988 |
| 4768564 | Wireless let-off and take-up control system A wireless let-off and take-up control system for controlling the let-off motion and take-up mechanism of a loom or looms by wireless. The control system comprises a portable transmitter or transmitters, and a receiver or receivers each associated with th... | 09/06/1988 |
| 4750527 | Method and device for controlling a warp beam drive of a weaving machine In a control for a warp beam drive of a weaving machine, the warp beam drive is regulated at all times by a control which receives input signals representing the number of rotations of the warp beam and representing the tension of the warp threads. If the... | 06/14/1988 |
| 4736776 | Adjustable breast beam system for heaving loom During the weaving process, the location and displacement of the cloth line and/or the breast beam are continuously detected; the detected value is supplied to a drive unit; in the event of a variation in cloth line location with respect to the desired lo... | 04/12/1988 |
| 4712588 | Pick spacing controlling device and method A pick spacing controlling device of the digital system for controlling the pick spacing of a fabric being woven on a loom having a main motor for driving the principal weaving mechanism of the loom, and a take-up motor for driving the take-up roller of t... | 12/15/1987 |
| 4691742 | Surplus warp yarn treating device of loom A device for treating a surplus warp yarn drawn from a warp beam of a loom consists of a drive member rotatable by the warp beam. A rotational force of the drive member is transmitted through a transmission device to a driven member. The driven member is ... | 09/08/1987 |
| 4572243 | System and apparatus for the measurement of the tension of textile fabrics in textile machines A method and apparatus for measuring the tension on textile fabrics in a textile machine especially a loom. At least a part of a fabric is subjected to simultaneous transverse deflections, the speed of propagation of the simultaneous transverse deflection... | 02/25/1986 |
| 4564050 | Method for starting the operation of a loom A method for starting the operation of a loom always under a constant warp tension after the completion of the amendment of faults in the woven fabric such as miss-pick. A warp beam in the stationary loom is rotated by a commmand signal from a control uni... | 01/14/1986 |
| 4534386 | Tensioning beam assembly for a weaving machine The tensioning beam assembly has a tensioning beam and/or support beam mounted in step bearings located across the width of the weaving machine. Sagging of the tensioning element is eliminated and reduced diameter tensioning elements and support beams can... | 08/13/1985 |
| 4480665 | Weft-bar (set mark) prevention system for a loom A weft-bar (set mark) prevention system for a loom which can prevent a weft-bar caused when the loom is immediately restarted, after the loom has been stopped due to weft- or warp-thread cut (i.e., breakage of a weft or warp thread). When the loom is rest... | 11/06/1984 |
| 4463782 | Shedding apparatus for circular weaving of multi-harness fabrics and method of using the apparatus A shedding apparatus for the circular weaving of multi-harness fabrics includes a plurality of heddle frames for weaving a multi-ply screen of the type suitable for use with a paper making machine. Each heddle frame has a warp wire from each fabric half d... | 08/07/1984 |