KEITH WARNER GUSTAFSON
Pilots at Spruce Ct, Waleska, GA

6698211, Mar 2, 2004

Jun 4, 2002

10/162125

Keith Gustafson - Waleska GA

Chart Inc. - Burnsville MN

F17C 902

62 502, 62 532

A natural gas fuel storage and supply system, particularly suited for use in vehicles powered by liquid natural gas (LNG), includes an insulated tank containing a supply of LNG with a headspace there above. A pump and a vaporizer are in circuit between the tank and the engine of the vehicle. When activated, the pump pressurizes LNG from the tank and directs it to the vaporizer where gaseous LNG is produced. The pressurized gaseous LNG is routed to the engine where it is consumed as fuel. An economizer circuit communicates with the headspace of the tank and includes a regulator, a control valve and a flow control device. The control valve opens when the vehicle engine is in operation and the regulator opens when the pressure in the tank exceeds a predetermined level so that LNG vapor from the tank headspace flows to the vehicle engine air inlet where it is consumed. The flow control device, which may be an orifice or a flow control valve, is set to prevent the LNG vapor and air mixture created at the air intake from being combustable in the vehicle engine.

5011700, Apr 30, 1991

Aug 11, 1989

7/392779

Keith W. Gustafson - Waleska GA
George W. Kalet - Marietta GA
Martin S. Taylor - Waleska GA

B01F 304

426477

There is disclosed a syrup delivery system for carbonated beverages which provides delivery of beverage syrup from a syrup container to a beverage mixer. The syrup delivery system comprises a source of pressurized gas, conveniently the CO. sub. 2 gas source which is also used to carbonate the water used to mix the carbonated beverage, and a syrup container. The syrup container comprises a rigid drum having an opening with a closure and a pressurizing fitting for connection to the source of presurized gas. A collapsible bag for holding the syrup is fitted inside of the rigid drum and is connected by means of a double ended connector through the closure to the beverage mixer. In operation, the CO. sub. 2 pressurized gas is introduced into the rigid tank between the inside of the tank and the outside of the collapsible bag thereby forcing the syrup out of the bag and to the beverage mixer at a constant pressure. Because the closure is a standard size to fit existing small and large syrup containers, the syrup deliver system can be retrofitted into existing bulk on-premises syrup containers as well as retrofitted into smaller existing syrup containers.

5404918, Apr 11, 1995

Sep 3, 1993

8/117302

Keith Gustafson - Waleska GA

Minnesota Valley Engineering, Inc. - New Prague MN

B65B 304

141 1

The storage tank consists of a main tank and ullage tank connected by a relatively small passage having a flow rate capacity up to 30% of the main fill line. To fill the tank, liquid cryogen is delivered to the main tank by either a top or bottom fill. Because the fill line is significantly larger than the passage, the main tank will become liquid full while the ullage tank remains substantially empty. When the tank becomes liquid full a dramatic drop in the flow rate will result that can be detected by a relatively insensitive, and inexpensive, flow monitoring device thereby to stop the filling operation. The ullage tank will retain trapped gas and gradually allow the liquid from the main tank to enter the ullage tank through the passage until the liquid level in the tanks are equal. Once the liquid levels in the tanks equalize, a vapor space is created above the liquid to accommodate vaporizing cryogen and provide long hold times.

6128908, Oct 10, 2000

Oct 15, 1998

9/173589

Keith W. Gustafson - Waleska GA

MVE, Inc. - New Prague MN

F17C 100

62 451

An improved cryogenic liquid storage tank features a main tank containing a ullage tank. The top portion of the main tank communicates with the bottom portion of the ullage tank through a pipe segment and an opening in the ullage tank. The pipe segment is dimensioned and positioned so that the main tank fills with incoming cryogenic liquid while the ullage tank remains primarily empty. The restricted flow into the ullage tank causes the flow of cryogen into the main tank to decrease when the main tank is nearly full. This decrease in flow is utilized to terminate the filling of the tank. Removal of product from the main tank decreases the pressure and the liquid level therein so that liquid flows out of the ullage tank and is unable to return.

4608831, Sep 2, 1986

Oct 24, 1984

6/664285

Keith W. Gustafson - Waleska GA

F17C 702

62 55

There is disclosed a self-pressurizing container for liquid helium which comprises an inner and outer vessel with an insulating space between. A heating element is disposed within an insulating barrier tube which extends between the liquid and vapor phases of the helium. The barrier tube insures that the liquid helium is heated and vaporized in the barrier tube without substantially heating the bulk of the liquid helium. The heating element in the preferred embodiment includes a vapor heat exchanger.

5421160, Jun 6, 1995

Mar 23, 1993

8/036176

Keith Gustafson - Waleska GA
George W. Kalet - Marietta GA

Minnesota Valley Engineering, Inc. - New Prague MN

F25B 1900

62 7

The fueling station consists of a vacuum insulated storage vessel for storing a large quantity of LNG at low pressure. The LNG is delivered to one of two relatively small volume fuel conditioning tanks where the pressure and temperature of the LNG can be raised or lowered as dictated by the needs of the system, The pressure and temperature in the fuel conditioning tanks are raised by delivering high pressure natural gas vapor thereto from a high pressure bank. The temperature and pressure can be lowered by venting natural gas from the fuel conditioning tanks and/or delivering LNG thereto. The fuel conditioning tanks are connectable to a vehicle's fuel tank via a fill line to deliver natural gas and LNG to the vehicle and to vent natural gas from the vehicle to the fueling station,.

5537824, Jul 23, 1996

Jan 31, 1994

8/189205

Keith W. Gustafson - Waleska GA
George W. Kalet - Maretta GA

Minnesota Valley Engineering - New Prauge MN

F25B 1900

62 7

The fueling station consists of a vacuum insulated storage vessel for storing a large quantity of LNG at low pressure. The LNG is delivered to one of two relatively small volume fuel conditioning tanks where the pressure and temperature of the LNG can be raised or lowered as dictated by the needs of the system. The pressure and temperature in the fuel conditioning tanks are raised by delivering high pressure natural gas vapor thereto from a high pressure bank. The temperature and pressure can be lowered by venting natural gas from the fuel conditioning tanks and/or delivering LNG thereto. The fuel conditioning tanks are connectable to a vehicle's fuel tank via a fill line to deliver natural gas and LNG to the vehicle and to vent natural gas from the vehicle to the fueling station.

2013013, Jun 6, 2013

Dec 3, 2012

13/693005

Keith Gustafson - Waleska GA, US
Chris Schmoeckel - Cumming GA, US
Lyle Holsinger - Canton GA, US
Carl Taylor - Ball Ground GA, US

F17C 5/02

141 1, 2205601

An ullage tank in a vertical cryogenic storage vessel that can store a liquefied gas is described. The ullage tank includes a hollow member. The ullage tank has at least one opening that allows communication between the ullage tank and an inner vessel of the vertical cryogenic vessel. The hollow member has a first open end and a second open end. The hollow member forms a vertically disposed passage through the ullage tank. The first open end and the second open end are in communication with the inner vessel. Related methods, apparatuses, systems, techniques and articles are also described.

5421162, Jun 6, 1995

Feb 23, 1994

8/200167

Keith Gustafson - Waleska GA
Duane Preston - New Prague MN

Minnesota Valley Engineering, Inc. - New Prague MN

F25B 1900

62 7

Liquid natural gas is pumped into a main tank until the main tank is completely filled with liquid. Once filled, high pressure gas is pumped into the main tank. This high pressure gas forces the liquid from the main tank into an overflow tank until the liquid level in the main tank reaches a predetermined level. High pressure gas is then pumped through the main tank to the overflow tank until the LNG in the overflow tank is saturated at a pressure slightly higher than the pressure needed at the use device. Once the desired pressure is achieved the delivery of LNG to the delivery system is stopped. LNG is initially delivered from the overflow tank to the use device as a high pressure gas. Some of the high pressure gas being delivered from the overflow tank is diverted from the use device to saturate the LNG in the main tank at the desired pressure. The LNG will be delivered from the overflow tank is depleted and then the LNG will be delivered from the main tank which will have been saturated by the high pressure gas from the main tank.

2006001, Jan 19, 2006

Jul 14, 2005

11/181507

Keith Gustafson - Waleska GA, US

F17C 5/02, F25B 19/00

062047100, 062051100

A cryogenic dewar features an inner tank surrounded by an outer shell with the space there between vacuum-insulated. A pressure vessel containing a cryogenic liquid refrigerant, such as liquid nitrogen, is positioned at least partially within the interior of the dewar to cool it. The pressure vessel is pressurized so that the temperature of the cryogenic liquid may be controlled. A refrigeration device and temperature or pressure sensor communicate with the cryogenic liquid in the pressure vessel. When the sensor detects that the cryogenic liquid has warmed above a predetermined level, the refrigeration device is automatically activated to cool the cryogenic liquid.