Patents by Inventor John Timothy Dardis, II
John Timothy Dardis, II 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: 9816246Abstract: A noise-attenuating pile comprising a pile driving shoe, an outer tube that engages the pile driving shoe, and an inner member that extends through the outer tube and engages the pile driving shoe, wherein the pile is configured to be installed in the ground with either an impact driver or a vibratory driver that engages only the inner member. The inner member is rigidly connected to the driving shoe, and the outer tube is elastically connected to the driving shoe, such that vibrations from the outer tube is substantially isolated from vibrations in the driving shoe.Type: GrantFiled: September 24, 2015Date of Patent: November 14, 2017Assignee: University of Washington Through its Center for CommercializationInventors: Per G. Reinhall, John Timothy Dardis, II
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Patent number: 9617702Abstract: A noise-attenuating pile comprising a pile driving shoe, an outer tube that engages the pile driving shoe, and an inner member that extends through the outer tube and engages the pile driving shoe, wherein the pile is configured to be installed in sediment or other suitable material by driving the inner member with a pile driver, without directly impacting the outer tube, such that the radial outer tube is substantially insulated from the radial expansion waves generated by the pile driver impacting the inner member. In some piles, one of the inner member and the outer tube are removable after installation. In some piles, a seal is provided in a lower end of the channel defined between the inner member and the outer tube, which may be biodegradable, or may be an inflatable bladder, for example.Type: GrantFiled: January 6, 2014Date of Patent: April 11, 2017Assignee: University of Washington through its Center for CommercializationInventors: Per G. Reinhall, Peter H. Dahl, John Timothy Dardis, II
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Publication number: 20160010306Abstract: A noise-attenuating pile comprising a pile driving shoe, an outer tube that engages the pile driving shoe, and an inner member that extends through the outer tube and engages the pile driving shoe, wherein the pile is configured to be installed in the ground with either an impact driver or a vibratory driver that engages only the inner member. The inner member is rigidly connected to the driving shoe, and the outer tube is elastically connected to the driving shoe, such that vibrations from the outer tube is substantially isolated from vibrations in the driving shoe.Type: ApplicationFiled: September 24, 2015Publication date: January 14, 2016Applicant: University of Washington through its Center for CommercializationInventors: Per G. Reinhall, John Timothy Dardis, II
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Patent number: 9080301Abstract: A pile with a low effective Poisson's ratio is disclosed, which greatly reduces the sound coupling to the water and sediment or other ground when driving piles. In some embodiments the pile includes geometric features that reduce the radial amplitude of the compression wave generated during hammering by providing a space for circumferential expansion along the length of the pile. The geometric features may comprise slots and/or grooves. In an embodiment, a driving shoe has a perimeter that extends beyond the pile tube such that the sediment produces less of a binding force on the pile. The pile may be formed as a double-shelled pile with either or both shells having effective low Poisson's ratio properties. A bubble generating plenum may be attached to the shoe to further reduce friction during installation.Type: GrantFiled: November 27, 2013Date of Patent: July 14, 2015Assignee: University of Washington through its Center for CommercializationInventors: Per G. Reinhall, Peter H. Dahl, John Timothy Dardis, II
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Patent number: 9068317Abstract: A pile (300) with a effective low Poisson's ratio is disclosed, which greatly reduces the sound coupling to the water and sediment or other ground when driving piles. The pile includes a plurality of geometric features that reduce the radial amplitude of the compression wave generated by hammering the pile by providing a space for circumferential expansion along the length of the pile. In various embodiments, the geometric features comprise slots (303) and/or grooves (313, 323). In an embodiment, a driving shoe (316, 316) has a perimeter that extends beyond the pile tube such that the sediment produces less of a binding force on the pile. The pile may be formed as a double-shelled pile (310) with either or both shells having effective low Poisson's ratio properties. A bubble generating plenum (328) may be attached to the shoe to further reduce friction during installation.Type: GrantFiled: November 2, 2012Date of Patent: June 30, 2015Assignee: University of Washington through its Center for CommercializationInventors: Per G. Reinhall, Peter H. Dahl, John Timothy Dardis, II
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Publication number: 20140119837Abstract: A noise-attenuating pile comprising a pile driving shoe, an outer tube that engages the pile driving shoe, and an inner member that extends through the outer tube and engages the pile driving shoe, wherein the pile is configured to be installed in sediment or other suitable material by driving the inner member with a pile driver, without directly impacting the outer tube, such that the radial outer tube is substantially insulated from the radial expansion waves generated by the pile driver impacting the inner member. In some piles, one of the inner member and the outer tube are removable after installation. In some piles, a seal is provided in a lower end of the channel defined between the inner member and the outer tube, which may be biodegradable, or may be an inflatable bladder, for example.Type: ApplicationFiled: January 6, 2014Publication date: May 1, 2014Applicant: University of Washington through its Center for CommercializationInventors: Per G. Reinhall, Peter H. Dahl, John Timothy Dardis, II
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Publication number: 20140086693Abstract: A pile with a low effective Poisson's ratio is disclosed, which greatly reduces the sound coupling to the water and sediment or other ground when driving piles. In some embodiments the pile includes geometric features that reduce the radial amplitude of the compression wave generated during hammering by providing a space for circumferential expansion along the length of the pile. The geometric features may comprise slots and/or grooves. In an embodiment, a driving shoe has a perimeter that extends beyond the pile tube such that the sediment produces less of a binding force on the pile. The pile may be formed as a double-shelled pile with either or both shells having effective low Poisson's ratio properties. A bubble generating plenum may be attached to the shoe to further reduce friction during installation.Type: ApplicationFiled: November 27, 2013Publication date: March 27, 2014Applicant: University of Washington through its Center for CommercializationInventors: Per G. Reinhall, Peter H. Dahl, John Timothy Dardis, II
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Publication number: 20140056650Abstract: A pile (300) with a effective low Poisson's ratio is disclosed, which greatly reduces the sound coupling to the water and sediment or other ground when driving piles. The pile includes a plurality of geometric features that reduce the radial amplitude of the compression wave generated by hammering the pile by providing a space for circumferential expansion along the length of the pile. In various embodiments, the geometric features comprise slots (303) and/or grooves (313, 323). In an embodiment, a driving shoe (316, 316) has a perimeter that extends beyond the pile tube such that the sediment produces less of a binding force on the pile. The pile may be formed as a double-shelled pile (310) with either or both shells having effective low Poisson's ratio properties. A bubble generating plenum (328) may be attached to the shoe to further reduce friction during installation.Type: ApplicationFiled: November 2, 2012Publication date: February 27, 2014Inventors: Per G. Reinhall, Peter H. Dahl, John Timothy Dardis, II