Ground anchors with compression plates

Details Ground anchors with compression plates Ground anchors with compression plates

2007-12-04

2007-12-04

Sotelo, Jesús D (Department: 3617)

Ships

Anchor

C052S155000, CD12S215000

Reexamination Certificate

active

11422768

ABSTRACT:
Ground anchors, in particular tent stakes (100), comprise one or more inherently flexible tines (110), a ground compression plate (160), and various tie points (420, etc.) for attaching a guy rope or the like to the top of anchor. The compression plate extends perpendicularly or at a large angle to the tine so that when the guy rope pulls on the anchor, the tine will tend to rotate about an underground fulcrum so that the compression plate will press against the ground and help the anchor resist pullout. The anchors are driven into the ground with a hammer or mallet. The tie points include hooks (420), closed holes (520), and swivel types comprising vertical members (810) with restraining, bulbous tops (820). An additional spring tie point (1600) can be inserted into optional lugs (1094, 1096) in the compression plate. The stakes can be driven into the ground vertically, or at an angle for additional holding force in some situations. They can also incorporate angled compression plates (160H,160I). A curved stake (100I) provides additional holding force in sand or friable soils. The stakes can be manufactured by a variety of means in various materials, such as glass-reinforced or other plastics and forged or stamped metals.

REFERENCES:
patent: 3070068 (1962-12-01), Chapman
patent: 3238678 (1966-03-01), Barnett
patent: 3512319 (1970-05-01), Piacentino
patent: 4756128 (1988-07-01), Danieli
patent: 4800843 (1989-01-01), Wendling
patent: D343607 (1994-01-01), Martin
patent: 6298611 (2001-10-01), Oliver et al.
patent: 6725872 (2004-04-01), Kindell et al.
patent: 29723219 (1998-10-01), None
patent: 2250758 (1992-06-01), None

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