Texas Patents - 5 Matching Results

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Automatic Gas-Release Packer.

Description: Patent for automatic gas release packer that uses constant pressure regulated by spring-controlled valves for better control when lifting oil out of wells.
Date: April 11, 1922
Creator: Cummings, William J.
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Partner: UNT Libraries Government Documents Department

Bailer.

Description: Patent for improved bailer for deep wells (e.g., oil wells), cheaper to use and manufacture, with a better delivery gate and improved method for triggering gate closure upon bailer withdrawal.
Date: July 26, 1921
Creator: Swartz, Ira
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Partner: UNT Libraries Government Documents Department

Door-Holder.

Description: Patent for a new door holder that is designed so that it will not press down the carpet pile if it is used to hold open a door in a carpeted area. It also is designed to hang on the key or handle of the door when not in use and is big enough that someone would not accidentally stow it in their pocket if they took the key.
Date: September 28, 1920
Creator: Lanning, Edwin
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Partner: UNT Libraries Government Documents Department

Door Stop and Holder.

Description: Patent for an invention that relates to door stops and holders, with the object to limit the swinging of the door when opened and will also hold the door open when it is desired to maintain the same in a open position.
Date: June 29, 1920
Creator: Newsom, John Wesley
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Partner: UNT Libraries Government Documents Department

Grapple.

Description: Patent for improving grapples for regaining tools, particularly those that can be hidden and submerged.
Date: April 26, 1921
Creator: James. C. Ginter.
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Partner: UNT Libraries Government Documents Department
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