"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 6550412 | Boat anchor A water craft anchor primarily comprising a shank assembly, arm assembly, and housing. The shank assembly swively connects to the arm members at a predetermined location. The arm members having a common shaft fixedly mounted inbetween. The housing assembl... | 04/22/2003 |
| 5404831 | Collapsible anchor assembly There is disclosed an anchor assembly comprised of a shank member on which are disposed cooperating fluke members which are rotably positioned on the shank member wherein each fluke member is formed with stabilizer portions capable of assuming a nestling ... | 04/11/1995 |
| 4545318 | Anchor construction An anchor construction for fishing and pleasure craft, especially those with a power anchor line winch, which includes a center swivel plate in a plane transverse to an anchor blade. The centerplate has a V-slot in which slides a clevis attached to an anc... | 10/08/1985 |
| 4385584 | Boat anchor An improved boat anchor assembly including an anchor shank having a pair of penetrating flukes pivotally connected thereto and supported for angular displacement about an axis normally related to the longitudinal axis of the shank, motion limiting stops m... | 05/31/1983 |
| 4250828 | Marine anchor An anchor in which the flukes pivot on the shank about independent axes wh converge toward the anchor chain end of the shank. Lugs at the base of shank provide for mounting the pivots. The anchor is reversible and has support plates on either side of its... | 02/17/1981 |
| 4154187 | Non-fouling anchor A non-fouling fluked anchor having a yoke-like shank in which the yoke arms are arcuate and pivotally attached to a pointed, center mounted fluke such that the arcuate arms of the shank provide for variable positioning of the fluke point to insure initial... | 05/15/1979 |
| 4073256 | Lightweight anchor having high strength to weight ratio A lightweight anchor in which each one of the flukes is made up of two sheets of stainless steel plate stock, stacked one on top of the other and welded together. Each sheet contains a plurality of integrally formed, longitudinally extending ribs and the ... | 02/14/1978 |
| 4048946 | Anchor with independent pairs of flukes An anchor construction wherein two pairs of independently operating flukes are pivotally mounted at one end of an elongated shank. Each fluke of the primary pair of flukes lies on an opposite side of the shank and each fluke of the secondary pair of fluke... | 09/20/1977 |
| 3977351 | Anchor An anchor comprises a frame, and two pointed flukes pivotable in relation to the frame to both sides between a storage position substantially in the plane of the frame and an anchoring position. The pivots extend at an angle in relation to each other and ... | 08/31/1976 |