Patents by Inventor David Vassallo
David Vassallo 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: 7053769Abstract: A vehicle safety system is disclosed. There are three major parts of the system—the proximity reader (200) mounted in the taxi (201), the host system (202) at a central location (203) and the data replication facility. The vehicular system (10) is essentially a computer having inputs and outputs. The inputs to the system (10) include, for example, passenger identification information (11) which is supplied by a sensor (12) which communicates with a wireless smart card (13), which is carried by a passenger (14). In its most rudimentary form, the smart card (13) transmits a unique identification number. In more sophisticated embodiments, the smart card (13) may also transmit biometric information such as fingerprint information or facial image information. The passenger (14) may also be requested to input a PIN number to a keypad (15) mounted on the exterior of the vehicle (16).Type: GrantFiled: December 20, 2002Date of Patent: May 30, 2006Inventor: David Vassallo
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Publication number: 20050035882Abstract: A vehicle safety system is disclosed. There are three major parts of the system—the proximity reader (200) mounted in the taxi (201), the host system (202) at a central location (203) and the data replication facility. The vehicular system (10) is essentially a computer having inputs and outputs. The inputs to the system (10) include, for example, passenger identification information (11) which is supplied by a sensor (12) which communicates with a wireless smart card (13), which is carried by a passenger (14). In its most rudimentary form, the smart card (13) transmits a unique identification number. In more sophisticated embodiments, the smart card (13) may also transmit biometric information such as fingerprint information or facial image information. The passenger (14) may also be requested to input a PIN number to a keypad (15) mounted on the exterior of the vehicle (16).Type: ApplicationFiled: December 20, 2002Publication date: February 17, 2005Inventor: David Vassallo
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Patent number: 6605133Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.Type: GrantFiled: April 23, 1999Date of Patent: August 12, 2003Assignees: L'Air Liquide - Societe Anonyme a' Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air LiquideInventors: Yao-En Li, Joseph E. Paganessi, David Vassallo, Gregory K. Fleming
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Patent number: 6444011Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least once glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.Type: GrantFiled: January 25, 2001Date of Patent: September 3, 2002Assignee: American Air Liqide, Inc.Inventors: Yao-En Li, Jospeh E. Paganessi, David Vassallo, Gregory K. Fleming
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Patent number: 6312502Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.Type: GrantFiled: April 23, 1999Date of Patent: November 6, 2001Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air LiquideInventors: Yao-En Li, Jospeh E. Paganessi, David Vassallo, Gregory K. Fleming
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Publication number: 20010029841Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least once glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.Type: ApplicationFiled: January 25, 2001Publication date: October 18, 2001Inventors: Yao-En Li, Joseph E. Paganessi, David Vassallo, Gregory K. Fleming
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Patent number: 6254666Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.Type: GrantFiled: March 28, 2000Date of Patent: July 3, 2001Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air LiquideInventors: Yao-En Li, Jospeh E. Paganessi, David Vassallo, Gregory K. Fleming
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Patent number: 6214089Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.Type: GrantFiled: July 21, 1998Date of Patent: April 10, 2001Assignees: American Air Liquide, Inc., L'Air Liquide, Societe Anonyme pour l'Etude et, l'Exploitation des Procedes Georges ClaudeInventors: Yao-En Li, Jospeh E. Paganessi, David Vassallo, Gregory K. Fleming
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Patent number: 5919285Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.Type: GrantFiled: April 3, 1998Date of Patent: July 6, 1999Assignees: American Air Liquide, Inc., l'Air Liquide, Societe Anonyme Pour l'Etude et, l'Exploitation Des Procedes Georges ClaudeInventors: Yao-En Li, Joseph E. Paganessi, David Vassallo, Gregory K. Fleming
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Patent number: 5858065Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; providing at least one size selective membrane having a feed side and a permeate side; contacting the feed side of the at least one membrane with the gas mixture; withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.Type: GrantFiled: January 16, 1997Date of Patent: January 12, 1999Assignee: American Air LiquideInventors: Yao-En Li, Joseph E. Paganessi, David Vassallo, Gregory K. Fleming
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Patent number: 5785741Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.Type: GrantFiled: June 14, 1996Date of Patent: July 28, 1998Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges, Claude, American Air LiquideInventors: Yao-En Li, Joseph E. Paganessi, David Vassallo, Gregory K. Fleming