Dual threaded chucking screw

- Adjustable Clamp Company
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Description

FIG. 1 is an end perspective view of the dual threaded chucking screw showing my design.

FIG. 2 is a front perspective view thereof; and,

FIG. 3 is a left side perspective view thereof.

Claims

The ornamental design for a dual threaded chucking screw, as shown and described.

Referenced Cited
U.S. Patent Documents
D135661 May 1943 Krauter
4223585 September 23, 1980 Barth et al.
D260103 August 4, 1981 Appel et al.
7568871 August 4, 2009 Chopp et al.
D612714 March 30, 2010 Skubic
D726000 April 7, 2015 Iwasaki
20130280965 October 24, 2013 Kojyo
20140097581 April 10, 2014 Jackson
20140290403 October 2, 2014 Wu
Foreign Patent Documents
610990 May 1979 CH
4405240 August 1995 DE
102007019061 November 2008 DE
102009042058 June 2010 DE
1019411 January 1953 FR
Other references
  • Buy Easy Chuck Chucking Screw online at Rutlands.co.uk, image post date Unknown, site visted on Apr. 28, 2015 (online), <http://www.rutlands.co.uk/sp+woodworking-whats-hot-special-offers-woodworking-special-offers-easy-chuck-chucking-screw+dk8030>.
  • Easy Wood Tools Easy Chucking Screw, image post date Feb. 11, 2014, site visted on Apr. 28, 2015 (online), <http://www.woodworkersjournal.com/easy-wood-tools-easy-chucking-screw/>.
Patent History
Patent number: D753477
Type: Grant
Filed: Dec 18, 2013
Date of Patent: Apr 12, 2016
Assignee: Adjustable Clamp Company (Chicago, IL)
Inventor: Craig Jackson (Lexington, KY)
Primary Examiner: Sheryl Lane
Assistant Examiner: Ieisha Price
Application Number: 29/476,914
Classifications
Current U.S. Class: D8/387