CHARLES LEWIS PARKER JR
Engineers in Princeton, NJ
License number
Pennsylvania PE037035R
Category
Engineers
Type
Professional Engineer
Address
Address
2
Princeton, NJ 08540
Pennsylvania
Pennsylvania
Personal information
See more information about CHARLES LEWIS PARKER JR at radaris.comName
Address
Phone
5129 Kylock Rd, Mechanicsburg, PA 17055
526 Main St, Manasquan, NJ 08736
528 Foxwood Ln, Paoli, PA 19301
524 Parkview Dr, Phoenixville, PA 19460
4722 Brian Rd, Mechanicsburg, PA 17050
Professional information
Clamping Apparatus
US Patent:
4309033, Jan 5, 1982
Filed:
Sep 19, 1979
Appl. No.:
6/077040
Inventors:
Charles L. Parker - Princeton NJ
George A. Vaughn - Princeton NJ
George A. Vaughn - Princeton NJ
Assignee:
AMF Incorporated - Plainsboro NJ
International Classification:
A63B 5100
US Classification:
273 73D
Abstract:
Clamping apparatus extending through a passageway formed in the frame of a game ball racket for applying non-uniform clamping pressure to a length of a game ball string adjacent an end thereof to clamp the length of string to the game ball racket frame, the non-uniform clamping pressure is minimum at the forward or pulled end of the clamped length of string where the tensile stress produced in the clamped length of string due to stringing and play is maximum and which non-uniform clamping pressure increases to a maximum at the free or rearward end of the clamped length of string where the tensile stress therein is minimum; the tendency of the clamped length of string to rupture at the forward or pulled end of the clamped length of string where the tensile stress is maximum is reduced because the non-uniform clamping pressure applied by the clamping apparatus of the present invention is minimum at this critical point.