Steven R Weiss

US Patent:

7621302, Nov 24, 2009

Filed:

Sep 28, 2007

Appl. No.:

11/904845

Inventors:

Robert Shock - Meriden CT, US
James Gruenbacher - Meriden CT, US
Steven Weiss - Naugatuck CT, US

Assignee:

Airgas, Inc. - Cheshire CT

International Classification:

B65B 3/26

US Classification:

141 95, 141104, 141197, 141236, 141244, 141302

Abstract:

In a system including a gas source, a target cylinder for receiving gas, a conduit for carrying gas, and a valve for controlling the flow of gas, a method of dosing the target cylinder with gas is disclosed. The method comprises the step of calculating a mass flow rate for dosing the conduit and the target cylinder. The valve is biased to an open position to permit gas to flow through the conduit and into the target cylinder. The mass flow rate and the cumulative mass of gas flowing through the conduit are measured using a mass flow meter. The valve is biased to maintain the measured mass flow rate of gas flowing through the conduit substantially equivalent to the calculated mass flow rate. The valve is biased to a closed position once the measured cumulative mass of gas is substantially equivalent to the pre-determined mass of gas.

US Patent:

8020585, Sep 20, 2011

Filed:

Aug 22, 2008

Appl. No.:

12/196652

Inventors:

Robert Shock - Meriden CT, US
Steven Weiss - Naugatuck CT, US
Andrew Mieczkowski - Meriden CT, US

Assignee:

Airgas, Inc. - Cheshire CT

International Classification:

E03B 1/00

US Classification:

137613, 137554, 137556

Abstract:

A leak detection system for detecting a leak within a duplex valve assembly is disclosed. The duplex valve assembly includes a first valve, a second valve and an intermediate fluid flow passageway fluidly interconnecting the first valve to the second valve. The leak detection system includes a means for indicating whether the first valve is maintained in a closed position or an open position, a means for indicating whether the second valve is maintained in a closed position or an open position, and a pressure change detector within the intermediate fluid flow passageway. The pressure change sensing means is at least partially positioned within the intermediate fluid flow passageway for detecting a pressure change within the intermediate fluid flow passageway.

US Patent:

20090084739, Apr 2, 2009

Filed:

Sep 28, 2007

Appl. No.:

11/904847

Inventors:

Robert Shock - Meriden CT, US
William Bertuleit - Berlin CT, US
Steven Weiss - Naugatuck CT, US

International Classification:

A47B 81/00
E05B 73/00

US Classification:

211 4, 211 75

Abstract:

A pressurized cylinder containment unit is provided. The pressurized cylinder containment unit comprises a support structure including means for receiving a shelf. The shelf receiving means is/are defined along at least a portion of a height dimension of the support structure. At least one shelf is provided for supporting the one or more pressurized cylinders. The at least one shelf is moveably positionable along the height dimension of the support structure. The at least one shelf includes mounting means for selectively mounting to the shelf receiving means of the support structure at different height elevations.