Title:
Coupling for use with boring tool or bit
United States Patent D289405


Inventors:
Nystrom, Rune (Mjalgavagen 53, S-781 32 Borlange, SE)
Application Number:
06/623382
Publication Date:
04/21/1987
Filing Date:
06/22/1984
Primary Class:
Other Classes:
D15/138
Field of Search:
D15/138, D15/140, 279/8, 279/1B, 279/99, 408/206, 408/239, 408/240
View Patent Images:
US Patent References:
4573839Mounting chuck for a drill having reversible tools thereinMarch, 1986Finnegan279/1B
4557642Coupling arrangement for modular tool-systemsDecember, 1985Dudas et al.279/8
4405269Cartridge case refinishing setSeptember, 1983Hertzler408/226
4171821Quick change collet tool holder assemblyOctober, 1979Miller279/1B
3876319Fastening means for two-piece core bitApril, 1975Meyer279/99
3843143CHUCK ADAPTEROctober, 1974Laxson279/99
3489191COUPLING CONSTRUCTION AND SUPPORTJanuary, 1970Blevins279/99



Primary Examiner:
BULLOCK, BARBARA J
Attorney, Agent or Firm:
MR. ERNEST I. GIFFORD (280 NORTH WOODWARD, SUITE 210, BIRMINGHAM, MI, 48011, US)
Claims:
1. The ornamental design for a coupling for use with a boring tool or bit, asshown and described.

Description:

FIG. 1 is a bottom perspective view of a coupling for use with a boring tool or bit showing my new design.

FIG. 2 is a top perspective view thereof;

FIG. 3 is a reduced exploded top view thereof;

FIG. 4 is a reduced exploded bottom perspective view thereof.