Patents by Inventor John M. Walton
John M. Walton 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: 9121149Abstract: A road safety barrier having a plurality of ropes supported by posts rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and supported in a longitudinally oriented indentation in a side of the posts. The ropes are released from a post and the post is not pulled from the ground when a vertical force is exerted on the rope. The post may have a circular cross-section and the indentation has a bottom oriented substantially parallel to the ground such that the rope is biased to exit upward out of the indentation. The ropes when weaved are tensioned against the posts and this gives rise to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier.Type: GrantFiled: July 1, 2011Date of Patent: September 1, 2015Assignee: Hill & Smith LimitedInventors: Graham T. Sharp, Sean Billingham, John M. Walton, Steve Eldon Wells, Matt Harriman
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Patent number: 8985891Abstract: A road safety barrier having a plurality of ropes supported by posts rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and supported in a notch or groove in a side of the posts. The ropes are released from a post and the post is not pulled from the ground when a vertical force is exerted on the rope. The ropes when weaved are tensioned against the posts and this gives use to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier. The structure of at least some of the posts and/or their mounting with respect to the ground defines a minimum bending yield strength in a direction along the length of the barrier. This minimum bending yield strength is greater than the bending moment resulting from the combined frictional resistance forces acting on the post.Type: GrantFiled: May 20, 2014Date of Patent: March 24, 2015Assignee: Hill & Smith LimitedInventors: Graham T. Sharp, Sean Billingham, John M. Walton
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Publication number: 20140231736Abstract: A road safety barrier having a plurality of ropes supported by posts rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and supported in a notch or groove in a side of the posts. The ropes are released from a post and the post is not pulled from the ground when a vertical force is exerted on the rope. The ropes when weaved are tensioned against the posts and this gives rise to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier. The structure of at least some of the posts and/or their mounting with respect to the ground defines a minimum bending yield strength in a direction along the length of the barrier. This minimum bending yield strength is greater than the bending moment resulting from the combined frictional resistance forces acting on the post.Type: ApplicationFiled: April 25, 2014Publication date: August 21, 2014Applicant: Hill & Smith LimitedInventors: Graham T. Sharp, Sean Billingham, John M. Walton
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Patent number: 8245032Abstract: An architecture for authenticating packets is provided that includes: an input 322 operable to receive a packet, the packet comprising at least one of a transport, session and presentation header portion and a transport agent 312 operable to compute a first message authentication code based on at least some of the contents of the packet and compare the first message authentication code with a second message authentication code in the at least one of a transport, session, and presentation header portion to authenticate the packet.Type: GrantFiled: March 27, 2003Date of Patent: August 14, 2012Assignee: Avaya Inc.Inventors: Christopher J. Donley, Robert R. Gilman, Kurt H. Haserodt, John M. Walton
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Publication number: 20120001138Abstract: A road safety barrier having a plurality of ropes supported by posts rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and supported in a longitudinally oriented indentation in a side of the posts. The ropes are released from a post and the post is not pulled from the ground when a vertical force is exerted on the rope. The post may have a circular cross-section and the indentation has a bottom oriented substantially parallel to the ground such that the rope is biased to exit upward out of the indentation. The ropes when weaved are tensioned against the posts and this gives rise to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier.Type: ApplicationFiled: July 1, 2011Publication date: January 5, 2012Applicant: Hill & Smith LimitedInventors: Graham T. Sharp, Sean Billingham, John M. Walton, Steve Eldon Wells, Matt Harriman
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Publication number: 20090146121Abstract: A road safety barrier having a plurality of ropes supported by posts rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and supported in a notch or groove in a side of the posts. The ropes are released from a post and the post is not pulled from the ground when a vertical force is exerted on the rope. The ropes when weaved are tensioned against the posts and this gives rise to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier. The structure of at least some of the posts and/or their mounting with respect to the ground defines a minimum bending yield strength in a direction along the length of the barrier. This minimum bending yield strength is greater than the bending moment resulting from the combined frictional resistance forces acting on the post.Type: ApplicationFiled: February 16, 2009Publication date: June 11, 2009Applicant: Hill & Smith LimitedInventors: Graham T. Sharp, Sean Billingham, John M. Walton
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Patent number: 7497640Abstract: A road safety barrier having four or more ropes 4-7 supported by posts 1-3 rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and follows a sinuous path between the posts. The ropes are tensioned against the posts and this gives rise to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier. The structure of at least some of the posts and/or their mounting with respect to the ground defines a minimum bending yield strength in a direction along the length of the barrier. This minimum bending yield strength is greater than the bending moment resulting from the combined frictional resistance forces acting on the post.Type: GrantFiled: September 15, 2004Date of Patent: March 3, 2009Assignee: Hill & Smith Holdings, PLCInventors: Graham T. Sharp, Sean Billingham, John M. Walton
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Publication number: 20040193876Abstract: An architecture for authenticating packets is provided that includes: an input 322 operable to receive a packet, the packet comprising at least one of a transport, session and presentation header portion and a transport agent 312 operable to compute a first message authentication code based on at least some of the contents of the packet and compare the first message authentication code with a second message authentication code in the at least one of a transport, session, and presentation header portion to authenticate the packet.Type: ApplicationFiled: March 27, 2003Publication date: September 30, 2004Inventors: Christopher J. Donley, Robert R. Gilman, Kurt H. Haserodt, John M. Walton
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Patent number: 5622454Abstract: A thrust plate which bears on a rock face is connected to a load-bearing termination on one end portion of an elongate member, e.g., a hollow rope, extending along a hole bored into the rock. An anchorage medium fills the hole, anchoring the elongate member in the rock, and extends between the end portion and the surrounding portion of the termination, securing these two portions together.Type: GrantFiled: June 23, 1995Date of Patent: April 22, 1997Assignee: Bridon PLCInventors: Peter S. Ashmore, John M. Walton
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Patent number: 5307615Abstract: Flexible tension member includes a helical bundle of substantially identical elongate elements. Each element inside the bundle is in contact with six adjacent elements, and the lay length of the helical bundle is at least 30 times its diameter. Each element is a strand including wires extending helically around the axis of the strands and substantially all of the strands have a helical lay direction opposite to the helical lay direction of the bundle.Type: GrantFiled: December 26, 1991Date of Patent: May 3, 1994Assignee: Bridon PlcInventors: John M. Walton, Yeung C. Tong
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Patent number: 5269128Abstract: A core for wire rope has a fluted member (1) of polymeric or elastomeric material with symmetrically spaced helical grooves (2) each having the shape of an elliptical arc in cross-section in a plane normal to the core axis. The core may contain a reinforcing member, conductors, or optical fibers.Type: GrantFiled: June 24, 1992Date of Patent: December 14, 1993Assignee: Bridon PLCInventors: John M. Walton, Michael T. Burtoft
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Patent number: 4813221Abstract: A flexible tension member for structural applications comprises twenty or more high strength rods (R) bundled helically with a lay length 20 to 150 times overall diameter, the rod (R) upon introduction being substantially free from curvature resulting in slackness in the bundle and introduced without flexural stresses significantly exceeding the yield point of the rod structure. The invention may utilize rods of solid circular or non-circular cross-section, or tubular and formed of metal, e.g., steel, and/or non-metallic material, more particularly fibre reinforced plastics, and results in a smooth uniform appearance, with good integrity and no signs of slackness despite the unusually long lay length employed.Type: GrantFiled: December 7, 1987Date of Patent: March 21, 1989Assignee: Bridin plc.Inventors: Philip Christian, John M. Walton
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Patent number: 4655033Abstract: A stranded rope (12) of large size is made by assembling a plurality of strands (10) and a core (11) side-by-side along a track (13); securing the leading ends in a clamp (14); securing the trailing ends in spaced anchorages (17, 18); applying tension to the strands (10) and core (11); guiding the strands (10) intermediate the clamp (14) and anchorages (17, 18) into the closed rope array round the core (11) by means of a closing die (20) on a trolley (19); moving the trolley (19) from the clamp (14) to the anchorages (17, 18); rotating the clamp (14) progressively as the trolley (19) moves progressively; rotating the trailing ends of the strands (10) and core (11) progressively in the same direction as the clamp (14); securing all the strands (10) and the core (11) together adjacent the trailing ends; and releasing the tension from the strands and the core.Type: GrantFiled: January 31, 1986Date of Patent: April 7, 1987Assignee: Bridon plcInventors: Philip Christian, John M. Walton
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Patent number: 4552958Abstract: A method for the separation of primary amines such as bis-(2-aminoethyl)ether from tertiary amines such as N-(2-methoxyethyl)morpholine which have close boiling points via extraction using a non-polar hydrocarbon solvent and water is described. The water may be added to a stream containing both bis-(2-aminoethyl)ether and N-(2-methoxyethyl)morpholine before extraction with the non-polar hydrocarbon is performed. The N-(2-methoxyethyl)morpholine is selectively removed by the hydrocarbon.Type: GrantFiled: February 17, 1984Date of Patent: November 12, 1985Assignee: Texaco Inc.Inventors: Simon P. Burns, John M. Walton, Edward E. McEntire
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Patent number: 4514058Abstract: Metallic load-carrying elements (3,23) are helically spun around a central member (1,21) comprising a supporting member or members (9,24) constituting a structure (4,24) which defines at least one passage (6,26) wholly accommodating at least one electrical or optical transmission element (7,27). The transmission element is thereby protected against stresses applied to the load-carrying elements. The central structure is radially and longitudinally self-supporting. The central member (1,21) is formed by causing the supporting member or members (9,24) and the transmission element or elements (7,27) to converge to a point from which the central member (1,21) is withdrawn continuously. The load-carrying elements (3,23) are subsequently applied to the central member (1,21). Cables of practically unlimited length can be produced.Type: GrantFiled: March 5, 1982Date of Patent: April 30, 1985Assignee: Bridon LimitedInventor: John M. Walton
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Patent number: 4362227Abstract: A clutch or brake assembly in which a hub and reaction member are, in the operative condition of the clutch or brake, coupled together through coupling discs, has one or a plurality of first coupling discs restrained against rotation relative to the reaction member and displaceable relatively thereto axially of the hub, so that it or they can be moved into engagement with one or more second coupling discs, e.g. friction discs, mounted for rotation with the hub to render the clutch or brake operative. The or each first coupling disc is located axially relatively to the reaction member in the inoperative condition of the clutch or brake by a set of spring members mounted directly on the coupling disc through a frictional gripping engagement. Where a plurality of the first coupling discs and a corresponding number of spring sets are used, the spring members of one set interconnect with the spring members of the adjacent set.Type: GrantFiled: October 17, 1980Date of Patent: December 7, 1982Assignee: Stone-Platt Oldham LimitedInventors: John M. Walton, Anthony H. Mather