Resumes
Resumes
Douglas Nobile Phones & Addresses
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12 Cherry Tree Ln, Sparta, NJ 07871 (973) 729-3759
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3204 State Rt 94, Franklin, NJ 07416 (973) 827-2271
Work
Position:
Professional/Technical
Publications
Us Patents
Jaws, Guiding Base Plates And Adjusting Mechanism For Chucks
View pageUS Patent:
40883337, May 9, 1978
Filed:
May 3, 1976
Appl. No.:
5/682515
Inventors:
Alfred F. Nobile - Sparta NJ
Douglas A. Nobile - Sparta NJ
Douglas A. Nobile - Sparta NJ
International Classification:
B23B 3119
US Classification:
279 60
Abstract:
A drill chuck is disclosed with a pair of jaws and a pair of jaw guiding base plates for centering and holding a drill bit. The chuck comprises a cylindrical housing for the pair of base plates in which the jaws are functionally located. Internal channels and platforms of the above plates guidedly control the movement of the pair of jaws and support a manual adjusting mechanism. The configuration of each of the jaws is such that two rows of triangular spaced apart teeth furnish an adjustable drill receiving opening, or corridor, which is constantly a square for the full range of opening adjustments. Shoulder extensions of the jaws are guidedly located in "V" shaped channels of the base plates. Dowel pins couple an adjusting mechanism to the jaws for guided movement. The adjusting mechanism includes a wedge-shaped body coupled to the dowel pins and a shaft having a left-hand threaded portion threadedly secured to the wedge body and a right-hand threaded portion threadedly retaining a jam nut and an adjusting knob.