Amusement devices: games – Puzzles – Take-aparts and put-togethers
Patent
1993-03-19
1994-08-23
Harrison, Jessica J.
Amusement devices: games
Puzzles
Take-aparts and put-togethers
273DIG23, 273171, 419 49, A63B 5304
Patent
active
053401077
ABSTRACT:
A golf club putter head made of a wear resistant and highly polished, aesthetically pleasing silicon nitride material in a manufacturing process which obviates labor intensive machining and finishing. Except for the optional addition of high density material weights at the toe and heel portions of the putter head, the present invention provides a putter head which is made of a monolithic silicon nitride ceramic which has a relatively low density of 3.3 grams per cubic centimeter and which is provided with a polished surface appearance along most of its surfaces. The present invention is preferably fabricated using a process of which the most important step is a high pressure, dry pressing step in which the unique shape of the golf club head described herein facilitates bi-axial symmetric pressure application resulting in what is known as a green part. The part may be readily completed with the steps of binder removal, nitriding and hot isostatic pressure sintering to densify and shrink the material and finishing with sandblasting and diamond lapping to provide the aesthetically pleasing highly reflective polished surface. The invention may also be fabricated using slip casting or injection molding techniques.
REFERENCES:
patent: 1562956 (1925-11-01), Guerne
patent: 2908502 (1959-10-01), Bradstreet
patent: 3975023 (1976-08-01), Inamori
patent: 4181306 (1980-01-01), Jepson
patent: 4630826 (1986-12-01), Nishigaki et al.
patent: 4687205 (1987-08-01), Tominaga et al.
patent: 4793616 (1988-12-01), Fernandez
patent: 4869507 (1989-09-01), Sahm
patent: 4979744 (1990-12-01), Alcala
patent: 5016883 (1991-05-01), Kobayashi
patent: 5037102 (1991-08-01), Fukayama et al.
patent: 5062638 (1991-11-01), Shira
patent: 5083778 (1992-01-01), Douglass
patent: 5217227 (1993-06-01), Shira
"Golf Digest", Magazine, Feb. 1992 issue, p. 167.
Baker Robert R.
Carden Robin A.
Ceradyne, Inc.
Harrison Jessica J.
Passaniti Sebastiano
Tachner Leonard
LandOfFree
Monolithic ceramic golf club putter head and method of manufactu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Monolithic ceramic golf club putter head and method of manufactu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monolithic ceramic golf club putter head and method of manufactu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-498005