Patents by Inventor Graham T. Sharp
Graham T. Sharp 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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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