Patent US3645528A successfully refreshed from Google Patents.
US3645528A
Expired / Lapsed
US
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Bowling ball including tuned loading circuit
Assignee: Brunswick Corp
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Filing: 1969-02-14
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Granted: 1972-02-29
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Expires: 1989-02-14
Abstract
Abstract A loading circuit tuned to an identifying frequency is molded within a plastic housing. The housing is threaded into a cavity located in a fingerhole of a bowling ball. The circuit includes a resistor, a capacitor and an inductance coil connected in series.
Inventors
- 👤 William D Cornell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:03
CPC Classifications
A; A63; A63B; A63B37/00; A63B37/0001
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
A self-identifying bowling ball comprising a ball body having a recess therein, means within said identifying body for electrically identifying said ball from other like balls in response to external electrical interrogation, said electrical identifying means comprising an electrical loading circuit including a capacitor and an inductor and being responsive only to inductive excitation at a preselected identifying frequency, and means for retaining said loading circuit within the recess in said ball body including a housing containing said loading circuit and means for retaining said housing within said recess.
Claim 2
Dependent Claim
89 words
A self-identifying bowling ball comprising a ball body having a recess therein, means within said identifying body for electrically identifying said ball from other like balls in response to external electrical interrogation, said electrical identifying means comprising an electrical loading circuit including a capacitor and an inductor and being responsive only to inductive excitation at a preselected identifying frequency, and means for retaining said loading circuit within the recess in said ball body including a housing containing said loading circuit and means for retaining said housing within said recess.
Claim 3
Dependent Claim
32 words
The ball of claim 1 wherein said electrical loading circuit includes a resistor, said inductor is an inductance coil, and said capacitor, resistor and inductance coil are in a complete series circuit.
Claim 4
Dependent Claim
26 words
The ball of claim 2 wherein said electrical loading circuit is molded within said housing and wherein said housing is removably retained within said ball body.
Claim 5
Dependent Claim
32 words
A ball according to claim 3 wherein said housing includes a male threaded portion and said ball body recess includes a mating threaded female portion in which said male portion is received.
Claim 6
Dependent Claim
28 words
A bowling ball according to claim 4 wherein said ball body has at least one fingerhole therein and said female threaded portion comprises an extension of said fingerhole.
Claim 7
Dependent Claim
28 words
A coded bowling ball according to claim 5 wherein said housing is formed of a plastic material and said electrical loading circuit is molded within said plastic material.
References Cited (Backward Citations)
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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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |