Flotation tank
United States Patent D794745

Tähkiö, Pekka (Espoo, FI)
Lakanen, Jukka (Espoo, FI)
Luukkonen, Matti (Helsinki, FI)
Vaarna, Valtteri (Helsinki, FI)
Application Number:
Publication Date:
Filing Date:
Outotec (Finland) Oy (Espoo, FI)
Primary Class:
International Classes:
(IPC1-7): 2301
Field of Search:
D23/202-205, 220/565, 220/586, 220/587
View Patent Images:
US Patent References:
D766397Modular architectural cisternSeptember, 2016GinnD23/202
D744609Storage tankDecember, 2015HermannD23/202
D741981Liquid mobile tankOctober, 2015FitzgeraldD23/202
D724177Water tankMarch, 2015LeeD23/202
8662117Secure weather containment system—enviro tankMarch, 2014Claborn137/147
D692093Water containerOctober, 2013PritchardD23/202
D647168Fluid tankOctober, 2011LernerD23/202
D612448Modular tankMarch, 2010RichardsonD23/202
D564618Portable waste transfer tankMarch, 2008GoodD23/202
D523517Sump enclosureJune, 2006FlickD23/202

Primary Examiner:
Webster, Robin V.
Attorney, Agent or Firm:
Banner & Witcoff, Ltd.

1. The ornamental design for a flotation tank, as shown and described.


FIG. 1 is a perspective front view of a flotation tank showing our new design;

FIG. 2 is a perspective rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a top plan view thereof.

The even broken line showings of the flotation tank in the Figure and the unshaded regions therein are for environmental purposes only and form no part of the claimed design.