Stacy L Gildersleeve

US Patent:

7198217, Apr 3, 2007

Filed:

May 31, 2005

Appl. No.:

11/141731

Inventors:

Stacy L. Gildersleeve - Vancouver WA, US
Tomas A. Glascoe - Vancouver WA, US

Assignee:

Columbia Machine, Inc. - Vancouver WA

International Classification:

B02C 19/00

US Classification:

241299, 241300

Abstract:

A tumbler for tumbling concrete products comprises a rotatable cylindrical drum having an input end that is slightly elevated relative to an output end. Tire retread strips are placed side-by-side on the radially inner surface of the drum and extend along its length. Clamps having lateral arms extending on either side are engaged with lateral tread grooves on the strips. The clamps are bolted to the drum between adjacent strips thereby securing the strips to the radially inner surface of the drum.

US Patent:

7635261, Dec 22, 2009

Filed:

Jan 27, 2006

Appl. No.:

11/341049

Inventors:

Douglas Vernon High - Vancouver WA, US
Stacy L. Gildersleeve - Woodland WA, US
Daniel Richard Wahlstrom - Vancouver WA, US
Llewellyn Lee Johnston - Vancouver WA, US
Keith Donald Brewer - Clackamas OR, US

Assignee:

Columbia Machine, Inc. - Vancouver WA

International Classification:

B28B 1/087

US Classification:

425255, 425421, 425424, 425432, 425456

Abstract:

A concrete products forming machine including a main frame, feed drawers, die supports and mold and head assemblies. The feed drawer is moved into position over the mold using an electric belt drive system and includes a vibrating strike off plate to improve surface quality of the molded product, zoned agitators to control movement and placement of concrete, a spring loaded seal system between the walls and floor of the feed box, and quick-release agitator design with urethane sleeves to effect easy and clean removal, replacement and cleaning of the agitators. The concrete products forming machine includes torque tube and leaf spring supports to effect substantially vertical vibrational movement of the mold with air inflatable springs for controlled force between the mold bottom and the pallet. The pallet itself is vibrated from below using phased, counter rotating shafts coupled to the pallet table on which the pallet rests. Vibration induced into the pallet by the vibrating pallet table is transferred to the mold resulting in material compaction.

US Patent:

20040069882, Apr 15, 2004

Filed:

Oct 10, 2002

Appl. No.:

10/269377

Inventors:

Stacy Gildersleeve - Vancouver WA, US
Thomas Glascoe - Vancouver WA, US

International Classification:

B02C017/22

US Classification:

241/179000, 241/181000

Abstract:

A tumbler for tumbling concrete products comprises a rotatable cylindrical drum having an input end that is slightly elevated relative to an output end. Tire retread strips are placed side-by-side on the radially inner surface of the drum and extend along its length. Clamps having lateral arms extending on either side are engaged with lateral tread grooves on the strips. The clamps are bolted to the drum between adjacent strips thereby securing the strips to the radially inner surface of the drum.

US Patent:

20070262229, Nov 15, 2007

Filed:

May 8, 2007

Appl. No.:

11/746022

Inventors:

Douglas High - Vancouver WA, US
Stacy Gildersleeve - Vancouver WA, US
Llewellyn Johnston - Vancouver WA, US

Assignee:

COLUMBIA MACHINE, INC. - Vancouver WA

International Classification:

B29C 33/56
B28B 7/24
B29C 33/40

US Classification:

249114100, 249119000, 264219000

Abstract:

A mold for concrete products includes a grid with a plurality of cavities that are open to both sides of the grid. The grid is bonded with polyurethane about its perimeter to the inner perimeter of a frame having a central opening therein. The grid may be formed of a single unitary piece or it may be formed from a plurality of sub-grids that are each bonded to the other with polyurethane.

US Patent:

20100086634, Apr 8, 2010

Filed:

Dec 9, 2009

Appl. No.:

12/634637

Inventors:

Douglas Vernon High - Vancouver WA, US
Stacy L. Gildersleeve - Woodland WA, US
Daniel Richard Wahlstrom - Vancouver WA, US
Llewellyn Lee Johnston - Vancouver WA, US
Keith Donald Brewer - Clackamas OR, US

Assignee:

COLUMBIA MACHINE, INC. - Vancouver WA

International Classification:

B29C 33/30

US Classification:

425453

Abstract:

A concrete products forming machine including a main frame, feed drawers, die supports and mold and head assemblies. The feed drawer is moved into position over the mold using an electric belt drive system and includes a vibrating strike off plate to improve surface quality of the molded product, zoned agitators to control movement and placement of concrete, a spring loaded seal system between the walls and floor of the feed box, and quick-release agitator design with urethane sleeves to effect easy and clean removal, replacement and cleaning of the agitators. The concrete products forming machine includes torque tube and leaf spring supports to effect substantially vertical vibrational movement of the mold with air inflatable springs for controlled force between the mold bottom and the pallet. The pallet itself is vibrated from below using phased, counter rotating shafts coupled to the pallet table on which the pallet rests. Vibration induced into the pallet by the vibrating pallet table is transferred to the mold resulting in material compaction. After the molding process, the mold is lifted in a stripping process to remove the molded product for curing or drying.

US Patent:

20220380266, Dec 1, 2022

Filed:

Aug 10, 2022

Appl. No.:

17/885244

Inventors:

- Vancouver WA, US
Jason Clark - Portland OR, US
Stacy Gildersleeve - Woodland WA, US

International Classification:

C04B 40/02
C04B 40/00
B28C 5/06
B28C 7/00
B28C 5/14
B28C 7/12
B28C 7/02

Abstract:

A method of retrofitting an existing apparatus for forming concrete products, where the apparatus comprises an existing component located upstream of a product mold and adapted to deliver treated concrete to the product mold, adapts the existing component to treat fresh concrete to be delivered to the product mold by a new component with treated water infused with a concentration of carbon dioxide nanobubbles. The step of adapting comprises adding to the existing component a water delivery system that is configured to direct the treated water into the fresh concrete, where the water delivery system is provided with one or more liquid manifolds configured to dispense the treated water into the fresh concrete to form treated concrete.

US Patent:

20220380267, Dec 1, 2022

Filed:

Aug 10, 2022

Appl. No.:

17/885263

Inventors:

- Vancouver WA, US
Jason Clark - Portland OR, US
Stacy Gildersleeve - Woodland WA, US

International Classification:

C04B 40/02
C04B 40/00
B28C 5/06
B28C 7/00
B28C 5/14
B28C 7/12
B28C 7/02

Abstract:

An apparatus for delivering a wet concrete mix to a product mold, where the apparatus comprises a hopper configured to retain a fresh concrete mix, a source of treated water having a concentration of nanobubbles of a gas at least double a natural concentration of nanobubbles of the gas within a natural state of the water, a water transport coupling the source of treated water with the hopper, a valve interposed within the water transport for selectively releasing the treated water into the hopper, and a mixer in communication with the hopper for mixing the treated water with the fresh concrete mix to yield an infused wet concrete.

US Patent:

20200290935, Sep 17, 2020

Filed:

Mar 14, 2019

Appl. No.:

16/353992

Inventors:

- Vancouver WA, US
Jason Clark - Portland OR, US
Stacy Gildersleeve - Woodland WA, US

International Classification:

C04B 40/02
B28B 1/50
C04B 40/00

Abstract:

A nanobubble-infused liquid is mixed into a dry concrete mix to form an infused wet concrete, where the nanobubble-infused liquid includes a concentration of nanobubbles of a gas at least double a natural concentration of nanobubbles of the gas within a natural state of the liquid. The nanobubble-infused liquid is preferably liquid water infused with a desired concentration of carbon-dioxide (CO) nanobubbles sized within a certain prescribed range. The infused wet concrete is then transported to the mold of a concrete products forming machine to form a molded product that has enhanced qualities including increased carbon capture within the resulting concrete product, improved curing times, increased flowability, self-healing, and improved release from the product mold.