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Patent No. 6637447

Beerbrella

A small umbrella which may be removably attached to a beverage container in order to shade the beverage container from the direct rays of the sun.

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Class 172/755 - Heating or lubricating


Subclass of Class 172 - Earth working
Definition: Apparatus including means to heat or add a lubricating material
No. of patents: 3
Last issue date: 09/12/1995


NumberTitleIssue Date
5448958Agricultural plow for treatment and/or fixing of gaseous constituents
An apparatus that treats and/or fixes soil gases liberated during plowing. An upper portion of a plow blade comprises a detachable panel made from a catalyst metal and behind the detachable panel is an electric resistance heater. A compressed fluid hose a...
09/12/1995
4142590Lubricating system for plow blades
A lubricating system for plow blades has a plurality of tube outlets positioned near a bottom portion of a plow blade and aligned to expel a dilute polymer lubricating fluid upward and onto a surface of the plow blade. As the plow blade scrapes up ground ...
03/06/1979
4068725Lubricating system for plow blades
A lubricating system for plow blades has a plurality of tube outlets positioned near a bottom portion of a plow blade and aligned to expel a dilute polymer lubricating fluid upward and onto a surface of the plow blade. As the plow blade scrapes up ground ...
01/17/1978
 
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