Patent US4085937A successfully refreshed from Google Patents.
US4085937A
Expired / Lapsed
US
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Composition for a floater golf ball and the floater golf ball made therefrom
Assignee: Sutherland Golf Inc
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Filing: 1975-09-26
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Granted: 1978-04-25
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Expires: 1995-09-26
Abstract
Abstract A floater golf ball of molded construction, having a specific gravity of less than about 0.98 is made to conform to the regulations of the United States Golf Association, by a method of compounding a polymeric composition comprising a mixture of elastomers, monomer, polymerization initiator, reinforcing filler materials and flotation materials, said mixture having dispersed therein, a predetermined amount of the flotation material comprising microscopic hollow glass spheres of from about 5% to about 10% by weight of the mixture, and molding and polymerizing said mixture into a golf ball sphere under pressure.
Inventors
- 👤 Bernard H. Schenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:40
CPC Classifications
A; A63; A63B; A63B37/00; A63B37/0003; A63B37/0022; A63B37/00221; A63B37/005; A63B37/0051; A63B37/007; A63B37/0072; A63B37/0074; A63B37/0077; A63B37/0083
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
A polymeric composition suitable for molding floater golf balls comprising a peroxide-coagent vulcanizate having dispersed therein from about 5% to about 10% by weight of the composition of hollow glass microspheres wherein at least 90% by volume of said microspheres have a size of from about 20 to about 95 microns, have a density in the range of from about 0.2 to about 0.4 grams/cc., and have a ratio of wall thickness to diameter in the range of from about 1.5% to about 3.0%, wherein said polymeric composition has a specific gravity of less than 0.98.
Claim 2
Dependent Claim
96 words
A polymeric composition suitable for molding floater golf balls comprising a peroxide-coagent vulcanizate having dispersed therein from about 5% to about 10% by weight of the composition of hollow glass microspheres wherein at least 90% by volume of said microspheres have a size of from about 20 to about 95 microns, have a density in the range of from about 0.2 to about 0.4 grams/cc., and have a ratio of wall thickness to diameter in the range of from about 1.5% to about 3.0%, wherein said polymeric composition has a specific gravity of less than 0.98.
Claim 3
Dependent Claim
37 words
The composition of claim 1 wherein at least 90% by volume of said microspheres have a size of from about 20 to about 90 microns and a wall thickness of from about 0.5 to about 2.0 microns.
Claim 4
Dependent Claim
17 words
The composition of claim 2 containing from about 15% to about 25% by weight of filler material.
Claim 5
Dependent Claim
106 words
A floater golf ball having a weight of less than about 39 grams and comprising a preformed solid core, said core being compounded of a peroxide-coagent vulcanizate intermixed with a flotation material comprising from about 5% to about 10% by weight of hollow glass microspheres dispersed throughout said core, wherein at least 90% by volume of said microspheres have a size of from about 20 to about 95 microns, said microspheres have a density in the range of from about 0.2 to about 0.4 grams/cc., and said microspheres have a ratio of wall thickness to diameter in the range of from about 1.5% to about 3.0%.
Claim 6
Dependent Claim
106 words
A floater golf ball having a weight of less than about 39 grams and comprising a preformed solid core, said core being compounded of a peroxide-coagent vulcanizate intermixed with a flotation material comprising from about 5% to about 10% by weight of hollow glass microspheres dispersed throughout said core, wherein at least 90% by volume of said microspheres have a size of from about 20 to about 95 microns, said microspheres have a density in the range of from about 0.2 to about 0.4 grams/cc., and said microspheres have a ratio of wall thickness to diameter in the range of from about 1.5% to about 3.0%.
Claim 7
Dependent Claim
40 words
The floater golf ball of claim 4 wherein at least 90% by volume of the glass microspheres are from about 20 to about 90 microns in diameter and have a wall thickness of from about 0.5 to about 2.0 microns.
Claim 8
Dependent Claim
37 words
The floater golf ball of claim 4 wherein said core is compounded of from about 68% to about 74% by weight of polymerized constituents intermixed with from about 15% to about 25% by weight of filler material.
Claim 9
Dependent Claim
17 words
The floater golf ball of claim 4 wherein said core has its outer surface coated with enamel.
Claim 10
Dependent Claim
17 words
The floater golf ball of claim 4 wherein said core is encased in a molded polymeric cover.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |