Robert M Frey

6396041, May 28, 2002

Nov 3, 1999

09/433122

Curtis A. Vock - Boulder CO, 80304
Kevin J. Grealish - Westwood MA, 02090-2948
Robert D. Frey - Bolton MA, 01740
George Nauck - Plant City FL, 33566
Charles M. Marshall - North Andover MA, 01845

A63B 6936

2502062, 2502081, 473152, 473218, 473270

The invention provides a golf feedback system. A mat is used to determine player foot position, and a 3D golf tracking system tracks golf balls hit from the mat to determine (a) a ground ball track and (b) a player orientation axis, based on the foot position and relative to the mat. The system further determines information indicative of how well the ground ball track correlated to the orientation axis. Preferably, a golfer using the system is led through a plurality of pin target locations in a simulated golf game. The system evaluates and stores information such as slice and hook, accuracy, player orientation axis and ball carry distance such that the player can evaluate his/her game individually or against one or more other players. The invention can include a plurality of mats, each mat located at a different tee off position at one or more driving ranges, each mat providing player foot position at that mat, a 3D golf tracking system at each of the driving ranges for tracking golf balls hit from one ore more mats at the associated driving, and a web server for storing and collating player performance information (e. g. , player orientation axis, slice, hook, distance information) for all golfers.

6774349, Aug 10, 2004

Feb 19, 2002

10/078782

Curtis A. Vock - Boulder CO, 80304
Kevin J. Grealish - Westwood MA, 02090-2948
Robert D. Frey - Bolton MA, 01740
George Nauck - Plant City FL, 33566
Charles M. Marshall - North Andover MA, 01845

G01C 2102

2502061, 2733172, 463 2, 473169

The invention provides a golf feedback system. A mat is used to determine player foot position, and a 3D golf tracking system tracks golf balls hit from the mat to determine (a) a ground ball track and (b) a player orientation axis, based on the foot position and relative to the mat. The system further determines information indicative of how well the ground ball track correlated to the orientation axis. Preferably, a golfer using the system is led through a plurality of pin target locations in a simulated golf game. The system evaluates and stores information such as slice and hook, accuracy, player orientation axis and ball carry distance such that the player can evaluate his/her game individually or against one or more other players. The invention can include a plurality of mats, each mat located at a different tee off position at one or more driving ranges, each mat providing player foot position at that mat, a 3D golf tracking system at each of the driving ranges for tracking golf balls hit from one ore more mats at the associated driving, and a web server for storing and collating player performance information (e. g. , player orientation axis, slice, hook, distance information) for all golfers.

56319860, May 20, 1997

Apr 29, 1994

8/235169

Robert G. Frey - White Bear Lake MN
Timothy D. Fletcher - White Bear Lake MN

Minnesota Mining and Manufacturing Co. - St. Paul MN

G02B 636

385 78

A ceramic optical fiber ferrule is constructed from CaTiO. sub. 3 (calcium titanate) or CeO. sub. 2 --ZrO. sub. 2 (ceria-zirconia). The ferrule is PC-radiused and thus includes a first, convex end having a predetermined radius of curvature, a second end, and an axial bore which joins the first and second ends. An optical fiber can be fixedly positioned within the bore and a terminal end of the optical fiber can be created by standard polishing or grinding techniques which is coplanar with the first, convex end of the ferrule.

50968629, Mar 17, 1992

Aug 9, 1990

7/565057

James P. Mathers - Woodbury MN
Robert G. Frey - White Bear Lake MN

Minnesota Mining and Manufacturing Company - St. Paul MN

C04B 3558
C04B 3520

501 98

This invention provides a transparent ceramic article comprising aluminum oxide and aluminum magnesium oxynitride. The ceramic article of the present invention is useful in applications where it is desirable to have an optically transparent ceramic including, for example, in orthodontic brackets, ferrules, and gas tight envelopes.

42182271, Aug 19, 1980

Mar 12, 1979

6/019787

Robert E. Frey - Excelsior MN

Donaldson Company, Inc. - Minneapolis MN

B01D 2706
B01D 2712

55302

The size of an air filter is greatly reduced compared to the size of conventional bag house type filters by the use of pleated paper filter elements grossly derated to withstand the sudden pulsating forces inherent in reverse jet cleaning.

52310620, Jul 27, 1993

Aug 9, 1990

7/565058

James P. Mathers - Woodbury MN
Robert G. Frey - White Bear Lake MN

Minnesota Mining and Manufacturing Company - St. Paul MN

C04B 3558

501 96

This invention provides a transparent aluminum magnesium oxynitride ceramic, wherein greater than 0. 5 weight percent of the total ceramic composition is magnesium oxide. The ceramic article of the present invention is useful in applications where it is desirable to have a transparent ceramic including, for example, in orthodontic brackets, ferrules, and gas tight envelopes.

57781230, Jul 7, 1998

Mar 12, 1996

8/614412

Richard Hagan - Bucks, GB2
Terry L. Smith - Roseville MN
Robert G. Frey - White Bear Lake MN
Gordon D. Henson - Lake Elmo MN
Jack P. Blomgren - Red Wing MN

Minnesota Mining and Manufacturing Company - St. Paul MN

G02B 636

385 76

The present invention provides a precise optical fiber cable connector for aligning and connecting ends of a pair of cables. The connector has a fiber alignment block having a fiber receiving surface and a connector engagement surface. First and second openings are provided in the connector engagement surface. An alignment ball is provided and is retained in the first opening. The alignment ball is for aligning the connector with another like connector, and specifically, for aligning optical fibers carried on the connector alignment assemblies.