Mark Neely Shepherd

US Patent:

20230001334, Jan 5, 2023

Filed:

Sep 7, 2022

Appl. No.:

17/939179

Inventors:

- Bloomington MN, US
Mark C. Shepherd - Apple Valley MN, US
Patricia L. Palmby - Wayzata MN, US

International Classification:

B01D 29/33
B01D 35/30

Abstract:

A filter cartridge has media construction, a housing, and a first end construction. The first end constructions includes an outer radial wall with circumferentially spaced connecting sections; each connecting section having a plurality of helical profiles extending at a helix angle. The filter cartridge is removably attached to a filter head, which has mating connecting segments. A bowl cartridge assembly is also provided including connecting sections with a plurality of helical profiles.

US Patent:

20210129050, May 6, 2021

Filed:

Oct 29, 2020

Appl. No.:

17/084035

Inventors:

- Minneapolis MN, US
Mark C. Shepherd - Apple Valley MN, US
Patricia L. Palmby - Wayzata MN, US

International Classification:

B01D 29/33
B01D 35/30

Abstract:

A filter cartridge has media construction, a housing, and a first end construction. The first end constructions includes an outer radial wall with circumferentially spaced connecting sections; each connecting section having a plurality of helical profiles extending at a helix angle. The filter cartridge is removably attached to a filter head, which has mating connecting segments. A bowl cartridge assembly is also provided including connecting sections with a plurality of helical profiles.

US Patent:

20200080008, Mar 12, 2020

Filed:

Nov 12, 2019

Appl. No.:

16/681120

Inventors:

- Minneapolis MN, US
Andrew J. Dallas - Minneapolis MN, US
Joseph M. Block - Minneapolis MN, US
Bradly G. Hauser - Minneapolis MN, US
Cullen E. Hall - Minneapolis MN, US
Mark C. Shepherd - Minneapolis MN, US
Mike J. Madsen - Chaska MN, US

International Classification:

C10G 33/06
B01J 20/26
B01J 20/28
C02F 1/00
C10G 33/08
C02F 1/42
B01J 20/20
B01D 61/10
B01D 15/36
B01J 41/05
C02F 1/28

Abstract:

A hydrocarbon-in-water purification system includes a high capacity hydrocarbon absorber stage having a high capacity hydrocarbon absorber material and an inlet configured to receive a hydrocarbon-in-water dispersion from a fuel system. A polishing hydrocarbon absorber stage is in liquid communication and downstream of the high capacity hydrocarbon absorber stage including polishing activated carbon. The high capacity hydrocarbon absorber material has a greater saturation capacity than the polishing activated carbon and the polishing activated carbon has a greater polishing capacity than the high capacity hydrocarbon absorber material. A method for controlling and managing the evacuation of water from the hydrocarbon-in-water purification system includes tracking the purification state of water volumes and the bed loading states of purification beds defined in the water filter.

US Patent:

20180079972, Mar 22, 2018

Filed:

Mar 17, 2016

Appl. No.:

15/558614

Inventors:

- Minneapolis MN, US
Andrew J. Dallas - Minneapolis MN, US
Joseph M. Block - Minneapolis MN, US
Bradly G. Hauser - Minneapolis MN, US
Cullen E. Hall - Minneapolis MN, US
Mark C. Shepherd - Minneapolis MN, US
Mike J. Madsen - Minneapolis MN, US

International Classification:

C10G 33/06
C10G 33/08
B01D 61/10
B01D 15/36
B01J 20/20
B01J 20/28
B01J 41/05
C02F 1/42
C02F 1/28

Abstract:

A hydrocarbon-in-water purification system includes a high capacity hydrocarbon absorber stage having a high capacity hydrocarbon absorber material and an inlet configured to receive a hydrocarbon-in-water dispersion from a fuel system. A polishing hydrocarbon absorber stage is in liquid communication and downstream of the high capacity hydrocarbon absorber stage including polishing activated carbon. The high capacity hydrocarbon absorber material has a greater saturation capacity than the polishing activated carbon and the polishing activated carbon has a greater polishing capacity than the high capacity hydrocarbon absorber material. A method for controlling and managing the evacuation of water from the hydrocarbon-in-water purification system includes tracking the purification state of water volumes and the bed loading states of purification beds defined in the water filter.