Patents by Inventor William R. Stewart
William R. Stewart has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7240966Abstract: A mechanism for supporting and permitting selected adjustment of the position of a headrest relative to the back of a chair comprises a body, a first pivotable connection, a second pivotable connection and a selectively releasable locking mechanism. The first pivotable connection is near the first end of the body, adapted to connect to the chair and to allow pivoting of the body relative to the chair. The second pivotable connection is near the second end of the body, adapted to connect to the headrest and to allow pivoting of the headrest relative to the body. The selectively releasable locking mechanism is configured to retain the body in selected angular positions relative to the chair and relative to the headrest by clamping together interleaved plate members in frictional contact and to allow for one-handed actuation.Type: GrantFiled: April 25, 2005Date of Patent: July 10, 2007Assignee: A-dec, Inc.Inventors: Christopher C. Stone, Brian E. Bonn, William R. Stewart
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Patent number: 6893096Abstract: Mechanism for supporting and permitting selected adjustment of the position of a headrest relative to the back of a chair includes an elongate housing, support brackets pivotally connected adjacent opposite ends of the body, and a plurality of interleaved elongate plate members extending longitudinally of the body and movable relative thereto, with opposite ends of the interleaved plate members pivotally connected to the brackets. Clamping mechanism is provided for releasably clamping interleaved portions of the plate members to hold them, and their associated brackets, in selected positions. A slide mechanism mounts a headrest permitting translational movement of the headrest relative to the mechanism.Type: GrantFiled: September 5, 2002Date of Patent: May 17, 2005Assignee: A-dec, Inc.Inventors: Brian E. Bonn, Christopher C. Stone, William R. Stewart
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Publication number: 20040046435Abstract: Mechanism for supporting and permitting selected adjustment of the position of a headrest relative to the back of a chair includes an elongate housing, support brackets pivotally connected adjacent opposite ends of the body, and a plurality of interleaved elongate plate members extending longitudinally of the body and movable relative thereto, with opposite ends of the interleaved plate members pivotally connected to the brackets. Clamping mechanism is provided for releasably clamping interleaved portions of the plate members to hold them, and their associated brackets, in selected positions. A slide mechanism mounts a headrest permitting translational movement of the headrest relative to the mechanism.Type: ApplicationFiled: September 5, 2002Publication date: March 11, 2004Applicant: A-Dec, Inc.Inventors: Brian E. Bonn, Christopher C. Stone, William R. Stewart
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Patent number: 5087484Abstract: This invention is an apparatus and method for applying sealant to a countersunk fastener hole. The apparatus comprises a sleeve, an adapter tube within the sleeve, a nozzle housing attached to the adapter tube, and a tip within the nozzle housing. A guide pin is attached to the adapter tube and follows an oblique slot in the sleeve. To operate, the sealant applicator is inserted into a countersunk fastener hole, engaging the tip with the countersink of the hole. The tip depresses into the nozzle housing, ejecting sealant onto the countersink. The adapter tube is pushed into the sleeve, moving the guide pin along the oblique slot in the sleeve. This guide pin movement rotates the adapter tube, nozzle housing and tip, causing the tip to uniformly spread the sealant around the countersink.Type: GrantFiled: October 1, 1990Date of Patent: February 11, 1992Assignee: McDonnell Douglas CorporationInventor: William R. Stewart
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Patent number: 5010841Abstract: An apparatus and method for applying sealant to a countersunk fastener hole. The apparatus includes a sleeve, an adapter tube within the sleeve, a nozzle housing attached to the adapter tube, and a tip within the nozzle housing. A guide pin is attached to the adapter tube and follows an oblique slot in the sleeve. To operate, the sealant applicator is inserted into a countersunk fastener hole, engaging the tip with the countersink of the hole. The tip depresses into the nozzle housing, ejecting sealant onto the countersink. The adapter tube is pushed into the sleeve, moving the guide pin along the oblique slot in the sleeve. This guide pin movement rotates the adapter tube, nozzle housing and tip, causing the tip to uniformly spread the sealant around the countersink.Type: GrantFiled: May 23, 1989Date of Patent: April 30, 1991Assignee: McDonnell Douglas CorporationInventor: William R. Stewart
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Patent number: 5005259Abstract: A pinned opening roller for an open end spinning machine wherein the pinning pattern around the circumferential surface of the roller is provided by spaced pairs of rows of pins which may extend parallel to the rotational axis of the roller, the spacing between the pairs of rows being greater than the spacing between the rows in each pair and in any pair, the pins in one row being staggered relative to those in the other row.Preferably, for a 71/2" circumference roller approximately 1" wide the pins in each row are spaced 0.1" apart and the rows in a pair are 0.03" apart and there are 28 pairs of rows around the circumference.Preferably, the pins in one row of a pair are each spaced equidistant from their adjacent pins in the other row and the pins in the first row of each pair are helically arranged and those in the second row of each pair also extend helically around the circumference of the roller.Type: GrantFiled: March 30, 1988Date of Patent: April 9, 1991Assignee: William R. Stewart & Sons Ltd.Inventors: William R. Stewart, David B. Stewart
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Patent number: 4869060Abstract: A cleaning system for use with a fibre opening device used in connection with the spinning of fibres into yarns wherein an opening roller is mounted for rotation in a housing incorporating a trash separation zone and a fibre stripping zone and the roller has a cylindrical working surface with combing elements projecting thereform, wherein the roller is substantially hollow and has holes in the cylindrical wall defining its working surface to permit flow of air through the wall and the interior of the roller is divided into two or more compartments, and means are provided to remove air and entrained dust and trash from a compartment adjacent to the trash separation zone, and further means are provided to insert air or other gas into a compartment adjacent the fibre stripping zone.Type: GrantFiled: June 22, 1988Date of Patent: September 26, 1989Assignee: Wm. R. Stewart & Sons (Hacklemakers) LimitedInventors: William R. Stewart, David B. Stewart, John Michael C. Dickinson
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Patent number: 4679390Abstract: An opening roller assembly for open end spinning machines wherein the roller is releasably and slidably supported on a drive shaft of the open end spinning machine to enable easy removal of the roller for refurbishing, replacement or repair. Non-mechanical means is provided to maintain the roller in an operative position on the drive shaft. Such means may comprise magnetic or fluid pressure means, or gravity. When in its operative position on the shaft, mechanical drive means extending directly or indirectly between the drive shaft and the roller will automatically become engaged. These drive means may be provided by a drive pin or mating engaging surfaces, for example.Type: GrantFiled: February 20, 1986Date of Patent: July 14, 1987Assignee: Wm. R. Stewart & Sons (Hacklemakers) LimitedInventor: William R. Stewart
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Patent number: 4530133Abstract: An opening roller for an open end spinning machine which may be formed in one or two parts, the opening roller having a central body or hub (1) preferably provided with a central cylindrical aperture (10) therein for mounting on a drive shaft of an open end spinning machine, there being an outer ring (2) having a cylindrical external surface (7), the ring (2) supporting suitable combing elements in the form of spaced pins (14) or card wire and wherein the ring (2) is spaced from and connected to the central body (1) by means of septal walls (3) which may either extend radially or be inclined to respective radial planes passing through them, and wherein the spaces between the septal walls may be filled with a suitable plastics medium (11) which may surround the pin tails (18) if these project from the rear face (19) of the ring (2). The roller may be machined from a one-piece extrusion (FIG. 2) or after suitable machining may be assembled from two parts which may themselves be extruded.Type: GrantFiled: February 7, 1984Date of Patent: July 23, 1985Assignee: Wm. R. Stewart & Sons (Hacklemakers) Ltd.Inventors: William R. Stewart, David B. Stewart, John M. C. Dickinson
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Patent number: 4370972Abstract: Cable ends of a compound bow are adjustably and securely anchored by an attachment member pivotally mounted adjacent the bow eccentric wheels. The attachment member body is of substantially constant thickness and includes a plurality of openings therethrough parallel to the opposite planar faces of the body and angularly offset relative to one another to define a circuitous cable pathway. An end section of the cable is secured by insertion of a threaded lock device through an edge wall of the body into an enlarged transverse anchor bore allowing radial distortion of crimping of the cable end section.Type: GrantFiled: August 6, 1980Date of Patent: February 1, 1983Assignee: Victor United, Inc.Inventors: William R. Stewart, Gary Simonds
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Patent number: 4270245Abstract: A lag or stave assembly for a Kirschner beater which replaces the traditional one-piece wooden lags and is preferably formed from extruded aluminium. The lag assembly is formed in two parts with a first support part which is preferably channel-shaped and can be secured to the free end of an arm or spider of the beater, and a second pinned working part removably secured along its leading and trailing edges to the upper ends of the arms of the support part, one edge, preferably the leading edge, of the working part being secured to the support part removably and hingedly, e.g. by a hook-shaped tongue engaging in a mating groove, and the other edge being fixedly secured to the other arm of the support part, e.g. by means of screws and/or any type of snap-fit or interlock. The arrangement preferably ensures that one of the parts is loaded in tension or compression when the two parts are secured together to prevent rattling.Type: GrantFiled: October 22, 1979Date of Patent: June 2, 1981Assignee: Wm. R. Stewart & Sons (Hacklemakers) Ltd.Inventors: David B. Stewart, William R. Stewart, John M. C. Dickinson
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Patent number: 4271402Abstract: A diagnostic and warning system for a motor vehicle monitors the condition of a number of preselected parameters. When the condition of the parameters is representative of a fault condition, the system energizes a malfunction light in the vehicle compartment during the period of the detected fault. The particular fault detected is stored in a nonvolatile memory where it is stored independent of the subsequent condition of the respective parameter. The stored fault conditions may thereafter be read from memory to provide an indication of the malfunctions that have occurred in response to a diagnostic interrogation signal. The fault conditions stored in the nonvolatile memory are erased when a predetermined time period has lapsed since the occurrence of a detected fault condition so that old nonrecurring self-correcting faults are not retained in memory and accordingly not indicated in response to a diagnostic interrogation signal.Type: GrantFiled: August 29, 1979Date of Patent: June 2, 1981Assignee: General Motors CorporationInventors: John L. Kastura, William R. Stewart
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Patent number: D262479Type: GrantFiled: December 12, 1979Date of Patent: December 29, 1981Assignee: Victor United, Inc.Inventor: William R. Stewart
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Patent number: D263162Type: GrantFiled: December 12, 1979Date of Patent: February 23, 1982Assignee: Victor United, Inc.Inventor: William R. Stewart
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Patent number: D316224Type: GrantFiled: March 7, 1988Date of Patent: April 16, 1991Assignee: The Procter & Gamble CompanyInventors: Ian Gray, Russell T. Watts, William R. Stewart
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Patent number: D317407Type: GrantFiled: March 7, 1988Date of Patent: June 11, 1991Assignee: The Procter & Gamble CompanyInventors: Ian Gray, Russell T. Watts, William R. Stewart
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Patent number: D353334Type: GrantFiled: August 28, 1992Date of Patent: December 13, 1994Assignee: Texaco Inc.Inventors: Ian M. Brown, William R. Stewart
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Patent number: D356641Type: GrantFiled: January 8, 1993Date of Patent: March 21, 1995Assignee: A-Dec, Inc.Inventors: William R. Stewart, J. Rick Halbirt, Carl G. Nordstrom
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Patent number: D378961Type: GrantFiled: September 27, 1995Date of Patent: April 29, 1997Assignee: A-Dec, Inc.Inventors: Carl G. Nordstrom, William R. Stewart, Victor D. Rogers, Brad A. Rice
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Patent number: D415549Type: GrantFiled: May 18, 1998Date of Patent: October 19, 1999Assignee: Lester H. CockerhamInventor: William R. Stewart