Bolt or nut tightening device

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Description

FIG. 1 is a first perspective view of a bolt or nut tightening device of the present design, as seen from diagonally left upward;

FIG. 2 is a second perspective view thereof, as seen from diagonally right upward;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a sectional view taken on line 88 of FIG. 4 omitting internal mechanism of the device;

FIG. 9 is a sectional view taken on line 99 of FIG. 3

FIG. 10 is a sectional view taken on line 1010 of FIG. 3

FIG. 11 is a sectional view taken on line 1111 of FIG. 3

FIG. 12 is a sectional view taken on line 1212 of FIG. 3

FIG. 13 is a sectional view taken on line 1313 of FIG. 3; and,

FIG. 14 is a sectional view taken on line 1414 of FIG. 3.

The broken lines are shown in the views for illustrative purposes only and form no part of the claimed invention.

Claims

The ornamental design for bolt or nut tightening device, substantially as shown and described.

Referenced Cited
U.S. Patent Documents
5953965 September 21, 1999 Kaneyama et al.
D569207 May 20, 2008 Torigai et al.
D580248 November 11, 2008 Rane et al.
D586640 February 17, 2009 Torigai et al.
7484714 February 3, 2009 Tsai
D602756 October 27, 2009 Henssler et al.
D606831 December 29, 2009 Shiota et al.
D609989 February 16, 2010 Torigai
D624380 September 28, 2010 Rane et al.
7886635 February 15, 2011 Kaneyama et al.
Patent History
Patent number: D639629
Type: Grant
Filed: Jun 1, 2010
Date of Patent: Jun 14, 2011
Assignee: Maeda Metal Industries, Ltd. (Osaka)
Inventors: Yukio Torigai (Sakai), Kenichi Tachiiri (Osaka)
Primary Examiner: Antoine D Davis
Attorney: Eckert Seamans Cherin & Mellott, LLC
Application Number: 29/370,064
Classifications
Current U.S. Class: D8/61; D8/69