Charles W Henderson

US Patent:

6375722, Apr 23, 2002

Filed:

Aug 22, 2000

Appl. No.:

09/643331

Inventors:

Charles A. Henderson - Wheaton IL
Terry D. Henderson - Naperville IL

Assignee:

Henderson Engineering Co., Inc. - Sandwich IL

International Classification:

B01D 5304

US Classification:

96112, 96115, 96130, 96143

Abstract:

A system for drying a gas includes a source of gas, a compressor connected to the source, and a heat of compression dryer connected to the compressor. The dryer includes a first tower and a second tower, each tower containing desiccant material therein. Temperature monitors are provided at the inlet of the dryer and at the outlet of the towers. Temperature readings from the temperature monitors are communicated to a controller which determines a suitable mode in which the dryer is to be placed.

US Patent:

RE39122, Jun 13, 2006

Filed:

Sep 5, 2001

Appl. No.:

09/946657

Inventors:

Charles A. Henderson - Wheaton IL, US
Terry D. Henderson - Naperville IL, US

Assignee:

Henderson Engineering Co., Inc. - Sandwich IL

International Classification:

B01D 53/04
B01D 53/26

US Classification:

96122, 95 41, 95120, 95126, 96111, 96128, 96130, 96143, 96144

Abstract:

A system for drying a gas, such as air, includes a source of gas to be dried, a multistage compressor having an inlet connected to the source, and a dryer connected interstage to the compressor and to the outlet of the compressor. The dryer is connected interstage to the compressor between a compression stage and a heat exchanger of one of the compressor stages for regenerating a first desiccant filled tower. The dryer is also connected to the outlet of the compressor for drying the gas using a second desiccant filled tower. A communication structure can be activated to connect the first tower to the outlet of the compressor for drying the gas using the first tower, and to connect the second tower interstage to the compressor for regeneration of the second tower.

US Patent:

20060196356, Sep 7, 2006

Filed:

Feb 2, 2006

Appl. No.:

11/346075

Inventors:

Terry Henderson - Naperville IL, US
Charles Henderson - Wheaton IL, US

International Classification:

B01D 53/06

US Classification:

095107000

Abstract:

A gas dryer is provided in which a flowing desiccant stream is utilized. Desiccant is provided in a vessel to dry compressed gas. The vessel includes an inlet for receiving dry desiccant and an outlet for removing wet desiccant from the tower. The desiccant is regenerated as it is transported to the inlet of the vessel.

US Patent:

20060196361, Sep 7, 2006

Filed:

May 19, 2006

Appl. No.:

11/419262

Inventors:

Terry Henderson - Naperville IL, US
Charles Henderson - Wheaton IL, US

International Classification:

B01D 53/02

US Classification:

096148000

Abstract:

An apparatus and a method to remove adsorbates from a fluid is described. A fluid such as compressed air is passed over a desiccant in a drying tower to adsorb moisture from the compressed air. The desiccant is regenerated in a venturi. A pressure-equalization chamber can be located between the venturi and the drying tower, and a pressure-equalization chamber can be located between the drying tower and the venturi. In another embodiment, a heater is used to assist in regeneration. In yet another embodiment, a heat-of-compression dryer is used to assist in regeneration. In yet another embodiment, a storage chamber is used to store a batch of regenerated desiccant while a second batch of desiccant is being used.

US Patent:

20130098476, Apr 25, 2013

Filed:

Oct 22, 2012

Appl. No.:

13/657422

Inventors:

Charles A. Henderson - Wheaton IL, US

Assignee:

HENDERSON ENGINEERING COMPANY, INC. - Sandwich IL

International Classification:

F16K 49/00

US Classification:

137334

Abstract:

A system for compressing and drying a gas generally includes a compressor having multiple stages of compression and a dryer. The compressor includes a first heat exchanger and an after-cooler each of which utilizes a fan. A sensor is provided downstream of the after-cooler. The fan and sensor are in communication with the controller. A final stage compressed gas outlet of the compressor provides hot compressed gas to the regenerative portion of the dryer. Utilization of the final stage compressed gas for regeneration while also utilizing the compressor's after-cooler provides gas which is sufficiently hot to regenerate desiccant in the dryer and allows the communication between the sensor, the controller and compressors to remain intact.

US Patent:

61713775, Jan 9, 2001

Filed:

Jul 14, 1999

Appl. No.:

9/352979

Inventors:

Charles A. Henderson - Wheaton IL

Assignee:

Henderson Engineering Co., Inc. - Sandwich IL

International Classification:

B01D 5304

US Classification:

96122

Abstract:

A system for drying a gas, such as air, includes a source of gas to be dried, a multi-stage compressor having an inlet connected to the source, and a dryer connected interstage to the compressor and to the outlet of the compressor. The dryer is connected interstage to the compressor between a compression stage and a heat exchanger of one of the compressor stages for regenerating a first desiccant filled tower. The dryer is also connected to the outlet of the compressor for drying the gas using a second desiccant filled tower. A communication structure can be activated to connect the first tower to the outlet of the compressor for drying the gas using the first tower, and to connect the second tower interstage to the compressor for regeneration of the second tower.

US Patent:

52846296, Feb 8, 1994

Filed:

Oct 14, 1992

Appl. No.:

7/960727

Inventors:

Charles A. Henderson - Wheaton IL
Terry D. Henderson - Naperville IL

International Classification:

B01D 5000

US Classification:

422171

Abstract:

A method for removing hydrocarbons from a stream of compressed air for use in a compressed air supply and delivery system of the type wherein a supply of compressed air is provided by a lubricated or non-lubricated air compressor includes the passing of the compressed air from the lubricated air compressor through a catalytic oxidation system to remove hydrocarbons, including vapor phase hydrocarbons, from the compressed air stream. The method contemplates feeding the stream of compressed air from an outlet of the air compressor to a treatment station, which treatment station utilizes a catalytic oxidation system to remove the hydrocarbons from the compressed air stream, thereby oxidizing the hydrocarbons into carbon dioxide and water and removing a predetermined, relatively high percentage of existing hydrocarbons from the compressed air stream prior to reaching downstream portions of the delivery system and any connected utilization apparatus. A compressed air system in which the foregoing method is carried out also forms a part of the invention. The invention also extends to a catalytic oxidation system for use in removing hydrocarbons, including vapor phase hydrocarbons, from a compressed air stream.

US Patent:

52344797, Aug 10, 1993

Filed:

Jul 2, 1992

Appl. No.:

7/908305

Inventors:

Terry D. Henderson - Naperville IL
Charles A. Henderson - Wheaton IL

International Classification:

B01D 5304

US Classification:

95105

Abstract:

A system for compressing and drying a gas from a gas source comprises a compressor operatively connected to the source for compressing the gas. A regenerative dryer for collecting water from the gas is operatively connected to the compressor such that the compressor is within a path of gas flow between the source and the dryer. The dryer is also operatively connected to the source such that water collected from the gas and removed from the dryer does not enter the compressor. A method of compressing and drying a gas is also provided comprising the steps of: supplying a compressor with gas from a source; compressing the gas; collecting water from the gas with a regenerative dryer; regenerating the dryer by removing collected water from said dryer with a purge gas; and delivering the purge gas to the source such that no purge gas or collected water is supplied to the compressor.