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US4262976: Bearing support


Filing Information

Inventor(s) Alcide Bertrand ·
Attorney/Agent(s) David A. Burge ·
Primary Examiner Lenard A. Footland ·
Application Number US6088300
Filing date 10/26/1979
Issue date 04/21/1981
Predicted expiration date 10/26/1999
U.S. Classifications 308/9  · 415/7  ·
International Classifications F16C 3206  ·
Kind CodeA
International Classifications 3089;DIG. 1;122;170;DIG. 4 ·
Foreign Priority CA332933 - 07/31/1979 ·
3 Claims, No Drawings


A means for supporting a windmill or similar body consists of a vertically oriented tank placed above or below ground level and filled with a liquid such as water. An air filled cylinder is mounted in the tank, the upper end being adapted to support a windmill. The lower end is pivotally positioned in a mercury sleeve. Further support means includes a circular water-filled channel supporting an annular pontoon or float connected to the cylinder shaft.

Independent Claims | See all claims (3)

  1. 1. Apparatus for supporting a windmill or the like comprising a vertically oriented, liquid filled tank,an air filled cylinder buoyantly supported in said tank and having upper and lower axially aligned shafts,the upper shaft being adapted to support a windmill and the lower shaft being pivotally mounted in the lower end of said tank,and a horizontal, circular, liquid filled channel positioned concentrically relative to said tank,an annular float member positioned in said channel, andmeans connecting the float member with the upper shaft of the cylinder in said tank.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US39562 Francis Aug 1863
US408295 De Ferranti Aug 1889
US831794 Lohle Sep 1906
US3637196 KAELIN J R Kaelin Jan 1972
US3721290 BUTLER T Butler Mar 1973
US4089620 Riga, Inc. Ravitts May 1978

Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
US4262976 BERTRAND ALCIDE Alcide Bertrand Apr 1981