USD239390S - - Google Patents

Description

United States Patent Des. 239,390 Patented Mar. 30, 1976 HAND-HELD HIGH SPEED DENTAL HANDPIECE Ronald C. Webb, York, Pa., assignor to Dentsply Research & Development Corp., Milford, Del.

Filed Apr. 4. 1974, Ser. No. 457,940

Term of patent 14 years Int. Cl. D24()2 US. Cl. D24-l l) FIG. 1 is a left side elevation of a hand-held high speed dental handpiece, showing my new design;

FIG. 2 is a bottom plan view of the handpieee of FIG. 1, showing the bur-receiving portion of the handpiece;

FIG 3 is a right side elevation of the hand-held high speed dental handpieee of FIG. 1;

FIG. 4 is a top plan view thereof:

FIG. 5 is a front end elevation thereof;

FIG. 6 is a rear end elevation thereof as seen from the right-hand end of FIG. 3;

FIG. 7 is a sectional view of the handpiece of FIG. 4 as seen on the line 77 thereof; and

FIG. 8 is a sectional view of the handpieee of FIG, 4 as seen on the line 88 thereof The characteristic feature of my design resides in the specific configuration of the triangular portions of the handle member as best illustrated in the cross-sectional views shown in the drawing.

I claim:

The ornamental design for a hand-held high speed dental handpiece, as shown and described.

References Cited UNITED STATES PATENTS D. 162,002 2/1951 Brown D241 D 2,945,299 7/1960 Fritz 32-27 3,380,162 4/1968 Heathe 3227 BERNARD ANSHER, Primary Examiner

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