The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 20, 1993

Filed:

Apr. 06, 1992
Applicant:
Inventor:

Frank C Donofrio, Sr, Norristown, PA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
273 79 ; 273 801 ; 2731 / ;
Abstract

A multi-loft golf club that provides a golfer with a more conventional mode of play. More than one club can make up a set. A six iron lofted head mounted in line with the shaft hozel can be closed incrementally to yield eight club positions, a 6,5,4,3,2,1, driver and a putter. The second club, with a 60 degree lofted head mounted in line with the shaft hozel can in a like manner yield eight club positions, a 60 degree sand wedge, 56 degree wedge, 52 degree wedge, pitching wedge, 9,8,7, and another 6 iron . . .being useful when a second player shares the club set. The high lofted club being broader in the club face and with more weight is fitted with a shorter club shaft and the low lofted club with less weight being fitted with a longer club shaft for greater distance; requiring higher velocity. Each club is comprised of a club head, a selector plate, a shaft hozel, a shaft, a shaft grip and fasteners which are mounted to the shaft hozel; when loosened slightly, frees the selector plate to change club-head loft. The selector plate with club head attached, changes the loft via a slotted network. Two radial slots in the selector plate provide a path to intersecting club change slots which are positioned on angles incrementally spaced and converge on a theoretical center point at the bottom leading edge of the iron head. This method of pivoting for loft negates the need for a fastener at the bottom which, when pivoting, creates leading edge offset on each selection where a different point of contact is presented with the ball with each swing.


Find Patent Forward Citations

Donofrio, Sr, Frank. (1993). Golf club with loft adjusting means (U.S. Patent No. 5228689). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5228689

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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