John E Pruitt

US Patent:

51139057, May 19, 1992

Filed:

Mar 26, 1990

Appl. No.:

7/498717

Inventors:

John E. Pruitt - Weatherford TX
John A. Pruitt - Perrin TX
Jay L. Pruitt - Arlington TX

International Classification:

F17C 704

US Classification:

137571

Abstract:

A carbon dioxide fill manifold and method for using which is designed to provide a end-user with an uninterrupted supply of carbon dioxide gas, while at the same time eliminating the necessity of transporting individual, conventional pressurized bottles to be refilled. In a most preferred embodiment the carbon dioxide fill manifold includes a fill line valve connected to an atomizer for receiving a fill line and introducing liquid carbon dioxide into the atomizer, liquid cylinder ports provided in the atomizer for connecting a pair of liquid chambers to the atomizer and receiving and storing the liquid carbon dioxide, a gas cylinder port provided in the atomizer for connecting a vapor container to the atomizer and receiving gaseous carbon dioxide generated in the atomizer and a service line valve also connected to the atomizer for receiving a service lien valve and servicing the end user with gaseous carbon dioxide. A pressure actuated valve is also provided in the atomizer for periodically replenishing the supply of gaseous carbon dioxide from the liquid containers responsive to a selected pressure differential across the pressure actuated valve. A pressure relief valve is seated in the atomizer to guard against excessive liquid carbon dioxide system pressure.

US Patent:

49363433, Jun 26, 1990

Filed:

Mar 27, 1989

Appl. No.:

7/328614

Inventors:

John E. Pruitt - Weatherford TX
John A. Pruitt - Perrin TX
Jay L. Pruitt - Ft. Worth TX

International Classification:

F17C 704

US Classification:

137571

Abstract:

A carbon dioxide fill manifold which is designed to provide an end-user with an uninterrupted supply of carbon dioxide gas, while at the same time eliminating the necessity of transporting individual, conventional pressurized bottles to be refilled. The carbon dioxide fill manifold includes a fill line having a fill line valve therein for introducing liquid carbon dioxide into the system, one or more liquid chambers communicating with the fill line for receiving and storing liquid carbon dioxide, a liquid transfer line extending from the fill line to an atomizer, a service line connected to the atomizer and fitted with at least one vapor container for receiving gaseous carbon dioxide generated in the atomizer and a service line valve provided in the service line for servicing the end user with gaseous carbon dioxide. In an optional embodiment a bleeder valve line and bleeder valve are also connected to the atomizer, in order to determine when the system is filled with liquid and gaseous carbon dioxide and an in-line pressure relief valve, located in the liquid transfer line, serves to periodically replenish the supply of gaseous carbon dioxide to the vapor container(s) responsive to a selected pressure differential at the pressure relief valve.

US Patent:

20190176417, Jun 13, 2019

Filed:

Nov 29, 2018

Appl. No.:

16/204729

Inventors:

- Basel, CH
Kasey Jon Minick - Burleson TX, US
John Dallas Pruitt - Suwanee GA, US
Newton T. Samuel - Suwanee GA, US
Chung-Yuan Chiang - Johns Creek GA, US
Kelly Kayi Tallau - Johns Creek GA, US
Matthew McCollum - Alpharetta GA, US
Richard Govan - Fairburn GA, US

International Classification:

B29D 11/00
G02B 1/04

Abstract:

The invention is related to a process for producing contact lenses that not only comprise a water gradient structural configurations, but also have a minimized uptakes of polyquaternium-1 and a long-lasting surface hydrophilicity and wettability even after being undergone a simulated 30-days lens care regime.