U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Golf putter training device incorporating processor and counter mechanism

Patent 6540620 Issued on April 1, 2003. Estimated Expiration Date: Icon_subject September 14, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

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Putting tutor
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Inventor: Adams

Golf putting trainer
Patent #: 5527041
Issued on: 06/18/1996
Inventor: Terry, III, et al.

Golf teeing device
Patent #: 5647805
Issued on: 07/15/1997
Inventor: Tarbox, Jr.

Guiding device for putting practice
Patent #: 5672114
Issued on: 09/30/1997
Inventor: Tu

System for predicting the distance which will be imparted to a golf ball by a putting swing, and method for using same
Patent #: 5788583
Issued on: 08/04/1998
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Golf putting alignment trainer
Patent #: 5797804
Issued on: 08/25/1998
Inventor: Chen

More ...

Inventor

Application

No. 661870 filed on 09/14/2000

US Classes:

473/150, Projectile addressing surface and target, or distance marker (e.g., course, putting green with cup, driving range, miniature golf course, etc.)473/257Swingable implement swing path indicator

Examiners

Primary: Martin-Wallace, Valencia
Assistant: Enatsky, Aaron L.

Attorney, Agent or Firm

International Class

A63B 067/02

Abstract

A putter training device for judging a speed of impact of a golf club head upon a golf ball and including an elongated structure with a first guide wall and a second spaced apart and substantially parallel extending guide wall. A golf ball placement position is located at a first interconnecting end of the spaced apart guide walls. An adjustable and cross wise extending passageway with pivoting flaps is located proximate a second interconnecting end and determines a selected width for allowing passage therethrough of a golf ball which is struck at said placement portion and travels along the elongated structure between the first and second guide walls. A sensor circuit includes first and second pairs of spaced apart sensors mounted in opposing fashion and at spaced apart locations to the first and second guide walls. A counter assembly including a logic circuit interfaces with the sensor circuit to signal start and stop positions of the sensor circuit dependent upon first and second travel positions of the golf ball. A digital to analog converter is communicable with the logic circuit and converting an incremented output from the sensors for subsequent presentation on a display circuit. A power supply communicates with the sensor circuit, counter assembly, digital to analog converter and display circuit for supplying an electrical power input.

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