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Class Information
Number: 52/161
Name: Static structures (e.g., buildings) > Piercing or expanding earth anchor > Spreader cam or plate > Screw operated
Description: Structure in which the actuating means for the cam or plate includes a screw.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7497053 |
System for fixing an object in the ground by means of a peg |
Mar. 3, 2009 |
| 6971209 |
Stabilization system for an anchor and method of use thereof |
Dec. 6, 2005 |
| 6829871 |
Wedge anchor for concrete |
Dec. 14, 2004 |
| 6810630 |
Spiral anchoring stake |
Nov. 2, 2004 |
| 6401407 |
Cover plate ground anchor |
Jun. 11, 2002 |
| 6128867 |
Ground anchor with stabilizer cap |
Oct. 10, 2000 |
| 5636944 |
Anchor for a beach umbrella |
Jun. 10, 1997 |
| 5203127 |
Earth anchor |
Apr. 20, 1993 |
| 5108068 |
Support system for free standing poles or posts |
Apr. 28, 1992 |
| 4453845 |
Base thrust anchor shell assembly |
Jun. 12, 1984 |
| 4362440 |
Tubular lost borehole closure |
Dec. 7, 1982 |
| 4251963 |
Earth anchor |
Feb. 24, 1981 |
| 4189879 |
Earth anchor |
Feb. 26, 1980 |
| 4178726 |
Method and apparatus for protecting thread on an earth anchor |
Dec. 18, 1979 |
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