Multi-head floor-grinding machine with pivoting heads

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Description

FIG. 1 is a top plan view of a multi-head floor-grinding machine with pivoting heads, showing my new design.

FIG. 2 is a front perspective view of my new design.

FIG. 3 is a front elevation of my new design.

FIG. 4 is detail view of the center power head showing the unit tilted at an angle.

FIG. 5 is a right side elevation view of the new design, showing one of the power heads being tilted.

FIG. 6 is a left side elevation view of the new design; and,

FIG. 7 is a rear elevation view of the new design.

The dashed lines showing the drive heads in FIGS. 1-7 and the planetary floor grinder in FIGS. 1, 2, 3, 4 and 7 are for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for a multi-head floor-grinding machine with pivoting heads, as shown and described.

Referenced Cited
U.S. Patent Documents
2301164 November 1942 Mall
D205234 July 1966 Dreyfuss et al.
D267320 December 21, 1982 Symonds
D300224 March 14, 1989 Schold et al.
D306598 March 13, 1990 Swartzendruber et al.
D308687 June 19, 1990 Demlow
6238277 May 29, 2001 Duncan et al.
7247085 July 24, 2007 Anderson
7261623 August 28, 2007 Palushi
7357700 April 15, 2008 Lundberg et al.
7640622 January 5, 2010 Vankouwenberg
D623669 September 14, 2010 Kromminga et al.
20050235453 October 27, 2005 Vankouwenberg
20070155285 July 5, 2007 Padgett et al.
20070264917 November 15, 2007 Lundberg et al.
20080248725 October 9, 2008 Craycraft
20090023369 January 22, 2009 Thysell
20100176567 July 15, 2010 Neudeck
20100197210 August 5, 2010 Goldberg et al.
20100267316 October 21, 2010 Silver et al.
Patent History
Patent number: D662523
Type: Grant
Filed: May 19, 2010
Date of Patent: Jun 26, 2012
Inventor: Howard Goentzel (Palmer, AK)
Primary Examiner: Mark Goodwin
Attorney: Michael J. Tavella
Application Number: 29/349,917