EP0261994A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fluid vibration damper for racquet
Assignee: Individual
•
Filing: 1987-02-18
•
Granted: —
•
Expires: 2007-02-18
Abstract
Abstract The device comprises a body having a well which receives a damping fluid and a weight in the form of a lead or steel ball. The body has a groove which extends around the entire periphery of the body so as to receive the strings of a sports racquet. The groove and the well are oriented such that the well extends perpendicularly the plane of the racquet head when the groove entraps the strings of a racquet.
Inventors
- 👤 Bart A. Hillock
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 22:23
CPC Classifications
A; A63; A63B; A63B60/00; A63B60/54
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
45 words
A damping device for use with a striking implement, comprising: a body portion having a central well having a top and a bottom; means enclosing said top and said bottom; a damping fluid received in said well; and a weight received in said damping fluid.
Claim 2
Dependent Claim
45 words
A damping device for use with a striking implement, comprising: a body portion having a central well having a top and a bottom; means enclosing said top and said bottom; a damping fluid received in said well; and a weight received in said damping fluid.
Claim 3
Dependent Claim
25 words
A damping device as set forth in Claim 1, wherein said body has a peripheral groove dimensioned to receive the strings of a sports racquet.
Claim 4
Dependent Claim
22 words
A damping device as set forth in Claim 2, wherein said peripheral groove surrounds a square central portion of said body portion.
Claim 5
Dependent Claim
16 words
A damping device as set forth in Claim 2, wherein said weight comprises a steel ball.
Claim 6
Dependent Claim
16 words
A damping device as set forth in Claim 2, wherein said weight comprises a lead ball.
Claim 7
Dependent Claim
15 words
A damping device as set forth in Claim 2, wherein said fluid is an oil.
Claim 8
Dependent Claim
56 words
A damping device .as set forth in Claim 1 in combination with a sports racquet having a plurality of crossing strings, a handle, a throat, and a bow mounting said strings, wherein said damping device is mounted in said strings such that said groove receives four strings to entrap said damping device among said four strings.
Claim 9
Dependent Claim
26 words
A combination as set forth in Claim 7, wherein said four strings include two cross strings positioned closest to said throat and two center main strings.
Claim 10
Dependent Claim
21 words
A combination as set forth in Claim 8, wherein said body is elongated in a direction parallel to said cross strings.
Claim 11
Dependent Claim
18 words
A combination as set forth in Claim 9, wherein said body is formed of a synthetic resin material.
Claim 12
Dependent Claim
24 words
A combination as set forth in Claim 7, wherein said well extends in a direction which is perpendicular to the plane of said bow.
Claim 13
Dependent Claim
27 words
A combination as set forth in Claim 7, wherein said means enclosing the top and bottom of said well comprise covers which are cemented to said body.
Claim 14
Dependent Claim
32 words
A combination as set forth in Claim 7, wherein said means enclosing the top and bottom of said well comprise a portion of said body and a cover cemented to said body.
Claim 15
Independent Claim
72 words
A method, comprising: producing a damping device having a peripheral groove and a well which receives a damping fluid and a weight in said damping fluid; and attaching said damping device to a sports racquet by positioning said device such that two main strings and two cross strings of said racquet are entrapped in said groove and such that said well extends perpendicularly to the plane of a head of the racquet.
Claim 16
Independent Claim
72 words
A method, comprising: producing a damping device having a peripheral groove and a well which receives a damping fluid and a weight in said damping fluid; and attaching said damping device to a sports racquet by positioning said device such that two main strings and two cross strings of said racquet are entrapped in said groove and such that said well extends perpendicularly to the plane of a head of the racquet.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.