Peter James Mills

6450735, Sep 17, 2002

Oct 29, 1997

08/960576

Peter Shelley Mills - Stamping Ground KY
Anthony Cecil Plaisted - Lexington KY
Michael Robert Amick - Georgetown KY

Fosroc International Limited - Swindon

E21F 114

4051502, 405303, 454169

A method and kit for installing a stopping in a mine opening includes securely fixing in the mine opening a screen of a size of about 2 to 24 mesh, preferably about 10 to 20 mesh, most preferably about 12 to 16 mesh, and applying a mortar to the screen to form a coating on the screen; and continuing the application of the mortar until the stopping is airtight. Preferably the screen is composed of steel wire of a diameter from about 0. 010 to 0. 030 inches (about 0. 025 to 0. 075 cms). Preferably the mortar is ready-to-use-mortar. The kit comprises as a first component, a screen of mesh size of about 2 to 24 suitable for installation in an opening in the mine and receiving a mortar and supporting the mortar (having a tensile strength of at least 150 lbs/inch) and, as a second component, a mortar, preferably a ready-to-use mortar, for application to the screen to provide a stopping.

6780237, Aug 24, 2004

Mar 12, 2002

10/095097

Peter Shelley Mills - Stamping Ground KY
David Neil Degville - Lexington KY

Fosroc International Limited - Swindon

C04B 2400

106724, 106725, 106726, 106733, 106737, 106823

A settable composition suitable for coating surfaces; e. g. , walls of a mine comprises (i) a cementitious composition comprising the following components: (a) at least 25% preferably at least 40% of a reactive cement having a C to A or (A+X) ratio of greater than 1:1 preferably greater than 1. 2:1, where X is S* or S or F (b) from 0 to 10% of lime and (c) from 5 to 70% preferably 10 to 40% of calcium sulphate, and where the sum of (b) and (c) is at least 15% the % being by weight based on the combined weight of (a), (b) and (c) and where the proportions of the components are such that the composition on hydration is capable of absorbing at least its own weight of water and (ii) an aqueous emulsion of an organic polymer, the amount of (ii) in relation to (i) being such as to provide a weight ratio of polymer solids to combined weight of (a), (b) and (c) of from 0. 5:1 to 10:1, preferably 0. 7:1 to 2:1 or (iii) an organic polymer in the form of a powder dispersible in water and where the amount of organic polymer is such as to give a weight ratio of polymer solids to combined weight of (a), (b) and (c) of from 0.

6869987, Mar 22, 2005

Mar 12, 2002

10/095099

Peter Shelley Mills - Stamping Ground KY, US
David Neil Degville - Lexington KY, US
Aj Rohaly - York PA, US

Minova International Limited - Witney

C04B024/24

524 2, 524 3, 524 4, 524 5, 524 6, 524 7, 524 8

A settable composition which can be applied by spraying to form a coating on a surface such as the walls of a mine comprises (i) a cementitious composition comprising the following components: (a) from 25 to 95% of calcium aluminate, (b) from 0 to 10% of lien and (c) from 0 to 50% of calcium sulphate, and where the sum of (b) and (c) is at least 5% the % being by weight based on the combined weight of (a), (b) and (c) and where the proportions of the components are such that the composition on hydration is capable of absorbing at least its own weight of water and (ii) an aqueous emulsion of an organic polymer, the amount of (ii) in relation to (i) being such as to provide a weight ratio of polymer, expressed as solids, to combined weight of (a), (b) and (c) of from 0. 5:1 to 10:1, preferably 1:1 to 2. 5:1 or (iii) a dispersible organic polymer and where the amount of dispersible polymer is such as to give a weight ratio of polymer to combined weight of (a), (b) and (c) o from 0.

6966610, Nov 22, 2005

Feb 21, 2001

10/203007

Peter Shelley Mills - Stamping Ground KY, US

Minova International Limited - Witan Way Witney

E21D011/00
E21D011/38

299 11, 299 12, 405266, 4052871, 405288, 4053024, 4051502

A method for providing a protective coating in a mine comprising spraying onto the rock surfaces of the mine a hot melt adhesive in an amount to form a coating at least 1 mm, preferably at least 2 mm in thickness and allowing the coating to solidify. The hot melt adhesive preferably has a melting point on the range from 70 to 250 degrees Centigrade and may include a filler such as an inert material in finely divided form such as ground limestone, mica, sand and silica, the filler comprising between 1 and 40% by weight of the combined weight of adhesive and filler.

6991547, Jan 31, 2006

Apr 6, 2005

11/099600

Kerry Lee Dever - Lexington KY, US
Peter Shelley Mills - Stamping Ground KY, US

Minova International Limited - Witan Way Witney

B21H 3/02

470 11, 470 12, 470 47, 470125, 470141

A roof bolt comprises a shaft for insertion in a hole drilled in a mine roof and a head whereby the bolt may be rotated, the head being offset with respect to the longitudinal axis of the shaft so that when the bolt is rotated by means of its head the shaft is caused to describe a circle of greater diameter than its own diameter, and where the offset is at least 08 inch and not more than 0. 25 inch. Preferably the offset is from 0. 10 to 0. 16 inch. The invention includes a method for the production of roof bolts which comprise a shaft for insertion in a hole drilled in a mine roof and a head whereby the bolt may be rotated, the method being characterised by being controlled so that at least 90% of the bolts produced have their head central axis offset with respect to the longitudinal axis of the shaft by an amount of at least about 0. 08 inch and not more than about 0. 25 inch.

6994496, Feb 7, 2006

May 9, 2003

10/434126

Peter S. Mills - Stamping Ground KY, US

Minova International Limited - Chipping Norton

E21D 20/00
E21D 21/00
F16B 39/00

405288, 4052591, 4052594, 4053021, 411 5, 411 54, 411134

The invention comprises a roof bolt and nut in screw threaded engagement, said bolt comprising a shaft for insertion in a hole drilled in a mine roof and a threaded portion engaged by the nut whereby the bolt may be rotated. The nut is offset with respect to the longitudinal axis of the shaft of the bolt so that when the bolt is rotated by means of the nut, the bolt is caused to describe a circle of greater diameter than its own diameter, the amount of said offset being from about 0. 015 to about 0. 50 inches. Preferably the offset is from about 0. 02 to about 0. 25 inches. The nut may be releasably locked in screw threaded engagement with the bolt so that the bolt can be rotated by means of the nut and above a selected torque the nut will break out.

7033430, Apr 25, 2006

Nov 28, 2001

10/432727

Peter S. Mills - Stamping Ground KY, US

Minova International Limited - Witan Way Witney, Oxfordshire

C04B 14/04
C04B 12/04
C04B 28/26
C04B 40/00

106606, 106607, 106608, 106705, 106706, 106708, 106709, 106713, 106724

A settable fluid cementitious composition which is fluid for sufficient time to be suitable for use in a flexible container to provide support in a mine said composition comprises (i) Portland cement in an amount from at least about 8% preferably 10%, (ii) a water soluble silicate in an amount from at least about 2% and (iii) water in an amount to provide a water to solids weight ratio of at lest about 1. 2:1 preferably at least abou5 1. 5:1 and where the % are by weight based on the combined weights of (i), (ii) and (iii). The viscosity immediately after mixing the components together is sufficiently low that additional water can be incorporated. The composition may include (iv) a pozzolan in an amount from 2 to 35% by weight based on the combined weight of (i), (ii), (iii) and (iv).

7044688, May 16, 2006

Sep 11, 2002

10/488544

Kerry Lee Dever - Lexington KY, US
Peter Shelley Mills - Stamping Ground KY, US

Minova International Limited - Witan Way Witney

E21D 20/00
E21D 21/00
F16B 39/00

405288, 4052591, 4052594, 4053021, 411 5, 411 54, 411134

A roof bolt comprises a shaft for insertion in a hole drilled in a mine roof and a head whereby the bolt may be rotated, the head being offset with respect to the longitudinal axis of the shaft so that when the bolt is rotated by means of its head the shaft is caused to describe a circle of greater diameter than its own diameter, and where the offset is at least 0. 08 inch and not more than 0. 25 inch. Preferably the offset is from 0. 10 to 0. 16 inch. The invention includes a method for the production of roof bolts which comprise a shaft for insertion in a hole drilled in a mine roof and a head whereby the bolt may be rotated, the method being characterised by being controlled so that at least 90% of the bolts produced have their head central axis offset with respect to the longitudinal axis of the shaft by an amount of at least about 0. 08 inch and not more than about 0. 25 inch.