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Assignee: EF Composite Technologies, L.P.


Location: San Diego, CA
No. of patents: 9

NumberTitleIssue Date
7144341Sports racquet with deflection enhancing string bed
A racquet for hitting a projectile has a stem, which is a handle or a shaft with a handle, and a racquet head with a frame extending from the handle and supporting a tensioned string bed defining a sweet spot. The frame has an upper portion on an opposing end of the...
12/05/2006
7140985Stringing indicia for sports racquets
In a sports racquet, anchor points for a string are marked with indicia to assist a stringer in stringing from one anchor point to a next anchor point. In a preferred embodiment, one of the anchor points is a bearing assembly located within a hollow cavity in the ra...
11/28/2006
7097576String bearing assemblies for sports racquets
A bearing assembly is at least partly disposed within the hollow stem or handle of a sports racquet. A plurality of curvilinear channels are disposed at different lateral locations in a direction which is at a substantial angle to the longitudinal axis of the racque...
08/29/2006
7077768Composite racquet with double tube head frame
A sports racquet frame is built of a composite of laminations of fibrous material as impregnated by a thermosetting resin. The head section of the frame has an upper tube preferably disposed above the string bed plane and a lower tube preferably disposed below the s...
07/18/2006
6958104Sports racket with undulations in frame interior surface
A sports racquet comprises a handle and a frame coupled to the handle. The frame includes an inner portion and an outer portion located substantially opposite the inner portion. The inner portion of the frame include a plurality of undulations that extend towards an...
10/25/2005
6935974Racquet strung with bypass string pattern
A sports racquet strung with a bypass string pattern has a frame with a first side and an opposed second side. The second side of the frame has a plurality of spaced apart string anchoring points. A string bed including a string having a plurality of string segments...
08/30/2005
6852048Guiding and vibration dampening string tubes for sports racquets
A string guide system is disposed within the hollow stem of a sports racquet and guides the continuous string at least through a turn for redirecting the continuous string back out of the cavity and toward the string bed. The redirection defines shared ends of a pai...
02/08/2005
6796916Sports racquet with deflection enhancing string bed
A racquet for hitting a projectile has a stem, which is a handle or a shaft with a handle, and a racquet head with a frame extending from the handle and supporting a tensioned string bed defining a sweet spot. The frame has an upper portion on an opposing end of the...
09/28/2004
6764417Racquet strung with bypass string pattern
A sports racquet strung with a bypass string pattern. The sports racquet includes a frame having a first side and an opposed second side. The second side of the frame has a plurality of spaced apart string anchoring points. A string bed including a string having a p...
07/20/2004
 
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