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| Number | Title | Issue Date |
| 7140319 | Pile anchor with external vanes An elongated hollow member (160), as shown in FIG. 1, with longitudinally disposed external vane(s) (275A–B) for securing an offshore structure to the seafloor. The external vanes help maintain the heading and bearing of the anchor during the ... | 11/28/2006 |
| 4702507 | Locking device for multiple pivotable members A locking device is described for use in selectively locking a plurality of pivotable members at selected operative positions about a central axis. The device includes means for mounting the members for pivotal motion about axes that may be substantially ... | 10/27/1987 |
| 4379580 | Grapnel A grapnel is disclosed which comprises a plurality of arms pivotably mounted on a substantially rod shaped body. The arms have at their free ends catching points forming an angle with the arms and near the foot of the catching points auxiliary catching cl... | 04/12/1983 |
| 4312289 | Permanent mooring apparatus A permanent mooring for use with boats and the like is provided with folding flukes on a tubular body. The flukes are formed as portions of a cylinder and in their folded position completely envelope the mooring with a smooth cylindrical surface which dec... | 01/26/1982 |
| 4145835 | Spring operated folding grapple A pair of anchors, each with a pair of oppositely directed hooks on the end of a shank, are shiftable between flat and extended positions. In the flat position the hooks of both anchors are disposed in parallel planes so that the grapple can lie flatwise,... | 03/27/1979 |
| 4130961 | Folding grapple for traps A folding grapple for traps as used for trapping upland animals and the like consists of a primary grapple member formed of an elongated rod provided with an eye at one end thereof and two oppositely disposed hooks at the other end. The said eye is at sub... | 12/26/1978 |
| 4057024 | Releasable anchor An anchor incorporating an arrangement for releasing the anchor when it becomes snagged on large rocks or other objects. One embodiment includes a blocking element which is positioned in the elongated anchor body to prevent the anchor arms from moving out... | 11/08/1977 |
