David Lee Grimes

US Patent:

7269875, Sep 18, 2007

Filed:

Nov 10, 2004

Appl. No.:

10/985827

Inventors:

David Brian Grimes - Greenfield MA, US

International Classification:

A47L 13/14

US Classification:

151192, 151191

Abstract:

Fluid is removed from the cleaning element of such as a sponge mop or string mop by inflating a bladder or like expansible member which is positioned in an enclosure adjacent the cleaning element, causing the expansible member to expand into contact with the cleaning element, thereby compressing the cleaning element for squeezing fluid therefrom.

US Patent:

8177151, May 15, 2012

Filed:

Nov 23, 2011

Appl. No.:

13/304208

Inventors:

David B. Grimes - Greenfield MA, US

Assignee:

Knowaste International, LLC - West Bromwich, West Midlands

International Classification:

B02C 19/00

US Classification:

241 22, 209 31, 241 23, 241 2418, 241 2419

Abstract:

Embodiments of the present disclosure include a method for separating a material comprising a super absorbent polymer, a fiber and a plastic to separate the material into components thereof, one method comprising shredding the material, adding salt to the material, and agitating the material, wherein the material does not comprise a slurry.

US Patent:

8240063, Aug 14, 2012

Filed:

Jul 20, 2007

Appl. No.:

11/780540

Inventors:

David Brian Grimes - Greenfield MA, US

International Classification:

F26B 5/16

US Classification:

34381, 34413, 34497, 151191, 151201

Abstract:

Fluid is removed from the cleaning element of such as a sponge mop or string mop by inflating a bladder or like expansible member which is positioned in an enclosure adjacent the cleaning element, causing the expansible member to expand into contact with the cleaning element, thereby compressing the cleaning element for squeezing fluid therefrom.

US Patent:

8436058, May 7, 2013

Filed:

May 14, 2010

Appl. No.:

12/780293

Inventors:

David Grimes - Greenfield MA, US

Assignee:

Knowaste International, LLC - West Bromwich, West Midlands

International Classification:

C08J 11/04

US Classification:

521 40, 521 45, 241 4, 241 11, 241 2418, 241 2419, 528485, 528488, 528490, 523343, 209245

Abstract:

Embodiments of the present disclosure include a method for separating a product comprising a super absorbent polymer, a fiber and a plastic to separate the product into components thereof, the method comprising adding water to the product, and pressing the product in order to separate the product into components comprising a plastics component and a super absorbent polymer and fiber component. Other methods of the present disclosure include a method for producing a reusable plastic, reusable paper fiber stream and a reusable super absorbent polymer from the treatment of a product comprising a super absorbent polymer, a fiber and a plastic. Still other embodiments of the present disclosure include a method for the treatment of wet super absorbent polymer, comprising salt assisted dehydration.

US Patent:

20120217326, Aug 30, 2012

Filed:

May 2, 2012

Appl. No.:

13/462201

Inventors:

David B. Grimes - Greenfield MA, US

Assignee:

KNOWASTE INTERNATIONAL LLC - West Bromwich

International Classification:

B02C 23/08
B02C 23/18
B02C 23/06

US Classification:

241 15, 241 22, 241 23

Abstract:

Embodiments of the present disclosure include a method for separating a material comprising a super absorbent polymer, a fiber and a plastic to separate the material into components thereof, one method comprising shredding the material, adding salt to the material, and agitating the material, wherein the material does not comprise a slurry.

US Patent:

59344849, Aug 10, 1999

Filed:

Apr 18, 1997

Appl. No.:

8/844040

Inventors:

David B. Grimes - Greenfield MA

Assignee:

Beloit Technologies, Inc. - Wilmington DE

International Classification:

B04C 304

US Classification:

209725

Abstract:

The centrifugal cleaner of this invention is of the type having an inverted cylindrical cone, with a tangential inlet at the top and an outlet at the bottom. The improvement consists of placing a ring or flow smoothing means on the inside surface of the cylindrical cone about one-half the diameter of the base of the cone down from the inlet. The ring forces the stock injected into the centrifugal cleaner to flow towards the axis of the cone away from the inside cone wall. Once the stock passes over the dam it once again flows to the inner wall of the cone. The stock, in being forced to flow over the ring, is made uniform, eliminating spiraling of the flow which has been found to decrease the efficiency with which separation within the cleaner is accomplished.

US Patent:

55668356, Oct 22, 1996

Filed:

Oct 5, 1995

Appl. No.:

8/539445

Inventors:

David B. Grimes - Greenfield MA

Assignee:

Beloit Technologies, Inc. - Wilmington DE

International Classification:

B03B 534

US Classification:

209725

Abstract:

A cleaner receives input pulp stock in an inverted conical chamber, which acts as a hydrocyclone to direct heavyweight reject flows outwardly, lightweight reject flows into a discharging vortex chamber and accept flows in between to a vortex finder for removal. The cleaner body has an inverted hydrocyclone chamber formed beneath the inverted cone and a ceramic splitter below which skims off the heavyweight reject flow from the accept flow, and diverts it into the inverted hydrocyclone chamber. A portion of the diverted heavyweight reject flow is removed through a toroidal heavyweight rejects relief outlet, but the larger fraction of the heavyweight reject flow is recirculated within the inverted hydrocyclone chamber. Because the chamber narrows as it extends upwardly, the flow increases in speed and angular velocity to such an extent that the flow within the inverted hydrocyclone chamber matches the flow passing by the chamber, thereby preventing turbulent mixing.

US Patent:

58040617, Sep 8, 1998

Filed:

Dec 18, 1997

Appl. No.:

8/993474

Inventors:

Richard P. Hebert - Cherry Valley MA
David B. Grimes - Greenfield MA

Assignee:

Beloit Technologies, Inc. - Wilmington DE

International Classification:

B03D 124
B03D 114

US Classification:

209170

Abstract:

A mixture of air and paper stock made from recycled paper from which the ink particles have been chemically released is injected into a cylindrical processing vessel. Added surfactants create a foam from the air as it rises through the stock and cause the ink particles to adhere to the air bubbles, resulting in a foam containing a concentrated fraction of the ink particles with some included fibers. The foam rises to the top of the vessel, and carries with it ink particles. Additional air injection ports can be used to increase the amount of foam generated and the amount of ink removed. Flow of stock and foam from the vessel can be controlled by adjusting valves on the stock and foam outlets. Flotation sensors allow the foam head to be maintained at the stock level by controlling the rate foam is withdrawn through the foam outlets.