A convertible anchor capable of being converted between a first position usable on sandy bottom floors and a second position usable on debris laden bottom floors, such as reefs. The convertible anchor may include an elongated shank and one or more flukes rotatably coupled to the elongated shank. The convertible anchor may also include an engagement limiting device placing the convertible anchor in a first position in which the fluke is prevented from rotating relative to the elongated shank. The...

A method of anchoring tubing in a bore comprising: providing tubing having a section with outer surface portions defining a tubing profile, and configured to describe an outer diameter less than a first diameter. The tubing is located within a bore having an internal diameter equal to the first diameter and defining a bore profile. The tubing is then reconfigured such that the tubing profile engages with the bore profile, anchoring the tubing within the bore.

A method of anchoring tubing in a bore comprises: providing first tubing having a section with a wall configured to provide outer surface portions describing a diameter less than a first diameter. The tubing is located within a bore comprising a first section having an internal diameter greater than the first diameter and a second section having an internal diameter corresponding to the first diameter, with the tubing section in the first section of the bore. The tubing section is then reconfigu...

A concrete anchor. The concrete anchor can be embedded within a concrete member to enhance lifting of the concrete member. The concrete anchor of the present invention can include a bar having a first end, a second end positioned adjacent the first end, and an intermediate portion curved to at least partially define an aperture. The aperture can be adapted to engage lifting hardware. The concrete anchor can further include a stem and a foot. The stem can include a first end coupled to the first ...

This invention relates to apparatus and methods used in the production of petroleum. The apparatus and methods maintain an amount of oil on oil well casing perforations for improved petroleum production. The apparatus for the production of petroleum includes: a pump intake tube having an opening, an oil anchor generally encircling the pump intake tube, the oil anchor having an open base and vent holes in the oil anchor above the opening of the pump intake tube, a casing generally encircling the ...

A convertible anchor capable of being converted between a first position usable on sandy bottom floors and a second position usable on debris laden bottom floors, such as reefs. The convertible anchor may include an elongated shank and one or more flukes rotatably coupled to the elongated shank. The convertible anchor may also include an engagement limiting device placing the convertible anchor in a first position in which the fluke is prevented from rotating relative to the elongated shank. The...

The An anchor retrieval assist device including a "U" shaped type of boat bow chock-rope guide and anchor staging and storage device which allows buoy type anchor retrieval devices to be pulled through the guide without rope removal. It is designed to allow pulling of an anchor via the buoy retrieval system with a rope routed through the device and attached to a forward cleat on a boat. The anchor can be easily released from its storage-rest position by raising the anchor rope, tipping the ancho...

A waterfowl decoy anchor for anchoring a floating decoy in a lake or stream for attracting waterfowl to a hunting site or blind. The anchor is typically tied to an eyehole in the lengthwise keel of a decoy by means of a connecting cord having a desired length. The anchor includes an elastic cord segment of latex connected at one end to a "D"-ring for attachment of the connecting cord and, at the other end, to an anchor ball of lead or iron. The other end is threaded through the anchor ball and k...

An improved suture anchor is formed from body tissue. The body tissue is shaped to a desired configuration for the anchor and defines a passage through the anchor. A suture is inserted into the passage in the body tissue of the anchor. The anchor is then positioned in a patient's body with a suture extending into the passage in the anchor. The anchor may be formed of osseous body tissue, hard compact bone, dense connective body tissue, or other body tissue. The body tissue may be dried so that i...

A board anchor comprising a screw shaft, freely rotating anchor section attached to the screw shaft via a spring and stop attachment for re-positioning the anchor section in a crosswise position against the screw shaft from a position parallel with the screw shaft, a stopper mechanism that stops the above screw shaft in the above cross position, and an attachment ring that screws onto the screw shaft, with the anchor section having a screw hole which fits the screw in the above upright position.