Percussive drill bit

- Padley & Venables Limited
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front perspective view of the percussive drill bit of my design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevational view thereof; and,

FIG. 8 is a rear elevational view thereof.

The buttons in dashed lines do not form part of the invention.

The broken lines in the drawings depict unclaimed environmental subject matter.

Claims

The ornamental design for a percussive drill bit, as shown and described.

Referenced Cited
U.S. Patent Documents
4397361 August 9, 1983 Langford, Jr.
4919221 April 24, 1990 Pascale
5025875 June 25, 1991 Witt
5366032 November 22, 1994 Kay
6276467 August 21, 2001 Ingmarsson
D454143 March 5, 2002 Asberg
6658968 December 9, 2003 Linden et al.
D496948 October 5, 2004 Charland et al.
D504141 April 19, 2005 Charland et al.
7117939 October 10, 2006 Hawley et al.
D574403 August 5, 2008 Brady
D611512 March 9, 2010 Sundin
D611970 March 16, 2010 Sundin
D705827 May 27, 2014 Hammargren et al.
8800690 August 12, 2014 Lyon et al.
20040188146 September 30, 2004 Egerstrom
20080087473 April 17, 2008 Hall et al.
20120186883 July 26, 2012 Purcell
Foreign Patent Documents
000219829-0001 August 2004 EM
000885256-0001 February 2008 EM
000885264-0001 February 2008 EM
000885264-0002 February 2008 EM
001158612-0001 August 2009 EM
001158612-0002 August 2009 EM
001351043-0001 November 2012 EM
Other references
  • Padley & Venables Part No. 471507, Button Bit 51 mm R32 Thread Paraboloid, Oct. 29, 2002.
  • Padley & Venables Part No. 472554, Button Bit 64 mm P28 Thread Drop Centre Ballistic, Jul. 19, 1996.
Patent History
Patent number: D725164
Type: Grant
Filed: Jan 24, 2014
Date of Patent: Mar 24, 2015
Assignee: Padley & Venables Limited (Dronfield, Sheffield)
Inventor: Pietro Guerriero (Chesterfield)
Primary Examiner: Patricia Palasik
Application Number: 29/480,209
Classifications