Patents by Inventor Richard D. Marshall
Richard D. Marshall 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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Publication number: 20230310907Abstract: A safety breathing apparatus has a sensor for measuring the difference in pressure between two point 1a, 1b in the gas delivered to a head unit 9. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.Type: ApplicationFiled: June 6, 2023Publication date: October 5, 2023Inventors: Albert F. Zwolinsky, Richard D. Marshall, Christopher G. Hall
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Patent number: 11707638Abstract: A safety breathing apparatus has a sensor for measuring the difference in pressure between two point 1a, 1b in the gas delivered to a head unit 9. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.Type: GrantFiled: May 20, 2020Date of Patent: July 25, 2023Assignee: 3M Innovative Properties CompanyInventors: Albert F. Zwolinsky, Richard D. Marshall, Christopher G. Hall
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Publication number: 20200276461Abstract: A safety breathing apparatus has a sensor for measuring the difference in pressure between two point 1a, 1b in the gas delivered to a head unit 9. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.Type: ApplicationFiled: May 20, 2020Publication date: September 3, 2020Inventors: Albert F. Zwolinsky, Richard D. Marshall, Christopher G. Hall
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Patent number: 10695592Abstract: A safety breathing apparatus has a sensor for measuring the difference in pressure between two point 1a, 1b in the gas delivered to a head unit 9. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.Type: GrantFiled: February 12, 2018Date of Patent: June 30, 2020Assignee: 3M Innovative Properties CompanyInventors: Albert F. Zwolinsky, Richard D. Marshall, Christopher G. Hall
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Patent number: 10668307Abstract: A safety breathing apparatus has a sensor for measuring the difference in pressure between two point in the gas delivered to a head unit. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.Type: GrantFiled: June 10, 2016Date of Patent: June 2, 2020Assignee: Scott Health & Safety Ltd.Inventors: Albert F. Zwolinsky, Richard D. Marshall, Christopher G. Hall
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Publication number: 20180221691Abstract: A safety breathing apparatus has a sensor for measuring the difference in pressure between two point 1a, 1b in the gas delivered to a head unit 9. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.Type: ApplicationFiled: February 12, 2018Publication date: August 9, 2018Inventors: Albert F. ZWOLINSKY, Richard D. MARSHALL, Christopher G. HALL
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Patent number: 9582610Abstract: The description relates to visual post builders. One example can receive a user search topic relating to a collage. This example can concurrently present a collage template and search results for the search topic. The collage template can be manifest as a grid of equal sized rectangles. The example can automatically populate a user selection from the search results into one or more rectangles of the collage template. The example can also automatically populate additional user selections into remaining rectangles of the collage template until all of the rectangles of the collage template are populated or the user indicates that the collage is complete.Type: GrantFiled: March 15, 2013Date of Patent: February 28, 2017Assignee: Microsoft Technology Licensing, LLCInventors: Rajeev Karunakaran, Richard I. Zaragoza, Steven W. Ickman, Richard D. Marshall, David A. Raskino, William L. Portnoy
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Publication number: 20160317845Abstract: A safety breathing apparatus has a sensor for measuring the difference in pressure between two point in the gas delivered to a head unit. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.Type: ApplicationFiled: June 10, 2016Publication date: November 3, 2016Inventors: Albert F. Zwolinsky, Richard D. Marshall, Christopher G. Hall
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Patent number: 9387299Abstract: A safety breathing apparatus has a sensor for measuring the difference in pressure between two points in the gas delivered to a head unit. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.Type: GrantFiled: October 27, 2010Date of Patent: July 12, 2016Assignee: Scott Health & Safety Ltd.Inventors: Albert F. Zwolinsky, Richard D. Marshall, Christopher G. Hall
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Publication number: 20140280054Abstract: The description relates to visual post builders. One example can receive a user search topic relating to a collage. This example can concurrently present a collage template and search results for the search topic. The collage template can be manifest as a grid of equal sized rectangles. The example can automatically populate a user selection from the search results into one or more rectangles of the collage template. The example can also automatically populate additional user selections into remaining rectangles of the collage template until all of the rectangles of the collage template are populated or the user indicates that the collage is complete.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: MICROSOFT CORPORATIONInventors: Rajeev Karunakaran, Richard I. Zaragoza, Steven W. Ickman, Richard D. Marshall, David A. Raskino, William L. Portnoy
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Publication number: 20130319408Abstract: A safety breathing apparatus has a sensor for measuring the difference in pressure between two point 1a, 1b in the gas delivered to a head unit 9. The sensor is used to measure the difference in the pressure of the gas supplied through the apparatus between the two points in the gas flow, and the pressure difference is then used to calculate the gas flow rate.Type: ApplicationFiled: October 27, 2010Publication date: December 5, 2013Inventors: Albert F. Zwolinsky, Richard D. Marshall, Christopher G. Hall
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Patent number: 6128872Abstract: The present invention relates to a cable protection system, and in particular to a cable protection system used to channel and protect cables or flexible pipes such as computer network cables, power cables, fiber optic cables, and hydraulic or pneumatic control lines laid within a cavity.The cable protection system comprises a sheet (10) of non-metallic material which may be shaped to form a channel. The cable protection system is adapted to fit between spacing bars (18) in a false floor, wall or ceiling.Type: GrantFiled: November 25, 1998Date of Patent: October 10, 2000Assignee: Comunica PLCInventors: Richard D. Marshall, Richard Bell
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Patent number: 3950995Abstract: Ambient or static pressure in a fluid stream is sensed with a hollow circr cylinder placed normal to the fluid stream. A shroud is mounted on the cylinder for adjustment over a ring of ports provided in the cylinder. In this manner, the relationship between the internal pressure in the cylinder and the ambient pressure is controllable. Ideally, the internal and ambient pressures are exactly equal. Further, extension of the cylinder above and below the shroud provides symmetry for positive and negative angles of attack.Type: GrantFiled: February 4, 1975Date of Patent: April 20, 1976Assignee: The United States of America as represented by the Secretary of CommerceInventor: Richard D. Marshall