Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 5921195 | Apparatus for coastal navigation and self rescue The present invention provides adjustable vessel draft by controlling buoyancy and making navigation possible in both shallow and deep waters without changing the total vessel weight or its given payload. The present invention also provides necessary deep... | 07/13/1999 |
| 5915321 | Multihull navigating structure A multihull navigating structure, such as a catamaran, includes a floating base (10) comprising two hulls (12), means (14) to render integral the hulls, a motor (16) disposed in at least one of the hulls, fluid and electric power supply networks, a contro... | 06/29/1999 |
| 5896825 | Dual hull watercraft In a dual-hull watercraft, a separate keel hull and sail hull are connected by a tie line. The sail hull comprises a sail and hull without a keel. The keel hull comprises a keel and hull or a submerged keel. The flexible tie line is coupled to the keel at... | 04/27/1999 |
| 5894807 | Sailboat A sailboat comprising at least one hull that is connected to a deck that has a line formed in a closed loop connected thereto. A sail, defined as a jib, being attached at its lower corners to the line so that moving the line moves the sail therewith, pres... | 04/20/1999 |
| 5870966 | Folding pontoon boat A folding pontoon boat to be typically used by one person. Consisting of a semi flat midsection which pivots about it's center axis. A plurality of pontoons are attached to the starboard and port sides of the midsection. Said pontoons pivot beneath the mi... | 02/16/1999 |
| 5826533 | Twin-hulled boat A twin-hulled boat (1) is constructed from three individual parts being two parallel, relatively narrow and relatively long hulls (2) each individually connected, at releasable joints (13,9), to a central, rigid bridge section (3), and separable, upon rel... | 10/27/1998 |
| 5692450 | One man fishing vessel A one-man vessel ideally suited for fishing includes a pair of rigid support pontoons that are interconnected by cross-frame members to provide a solid base from which a number of accessory components are mounted. A seat with a foldable back is supported ... | 12/02/1997 |
| 5515801 | Folding trimaran Folding trimaran which is symmetrical in relation to its median longitudinal axis and comprises a central hull, equipped with a mast, and also two lateral floats, which are connected to the central hull by at least one connecting arm. The trimaran can be ... | 05/14/1996 |
| 5377608 | Asymmetric pontoons for a water craft A water borne vessel is supported by a pair of laterally extendible pontoons, which pontoons are extended as a function of both speed and water conditions. A combination of extensible hydraulic cylinder units and threaded shafts selectively provide contro... | 01/03/1995 |
| 5315947 | Multi-section hull structures A water going vessel, which may be a mono hull-type vessel or a multihull-type vessel has a hull which is divided lengthwise into a row or rows of individual hull sections. Each hull section is pivoted along its outer edge to an outer edge of a deck frame... | 05/31/1994 |
| 5189974 | Kayak catamaran A catamaran kayak is disclosed which comprises a plurality of hulls (10, 12) which are joined together and laterally spaced by elongated connectors (B). Flexible couplings (C) are formed on the hulls which receive the ends of elongated connectors (B) and ... | 03/02/1993 |
| 5107783 | Variable trim trimaran This invention relates to a variable trim trimaran in which side floats (2) are provided that are connected to the central hull (1) by means of devices (3, 5) that allow them to shift vertically, wherein a deck structure (4) is provided that is connected ... | 04/28/1992 |
| 5086721 | Lightweight transportable watercraft A lightweight transportable watercraft includes a pair of pontoons disposed in spaced side-by-side relation to one another, a stool straddling the pontoons and extending over the space between the pontoons, and a pair of separate mounting bracket assembli... | 02/11/1992 |
| 5052324 | Folding fishing boat apparatus An apparatus is set forth wherein a plurality of spaced pontoons are pivotal relative to one another to define a fishing boat in an open configuration, wherein a brace is selectively positionable within one of a plurality of pairs of spaced recesses align... | 10/01/1991 |
| 4981100 | House trailer and boat assembly A house trailer and boat assembly with improved integration of the specific elements of the trailer and boat configurations such that in each of the house trailer and house boat configurations as few as possible of the elements of the other configurations... | 01/01/1991 |
| 4972788 | Aquatic vehicle In an aquatic vehicle with one or more hulls, a chamber (10) is formed in the boat or hull (19, 7). The chamber has at least one opening (13) which can be closed via a closing element (14) and at least one vent (20). The closing element (14) opens the ope... | 11/27/1990 |
| 4768454 | Folding wheeled boat A compact portable folding boat comprising a mid section with a wheel coupled to the front of the mid section. The boat has sections hinged to each side of the mid section which fold up over the mid section for storage. The boat can be rolled on the wheel... | 09/06/1988 |
| 4716847 | Multiple-hulled marine vessel A multiple-hulled marine vessel resistant to forces tending to separate the hulls from the platform is provided. The connections between the hulls and the platform include elastic elements which are in a non-tensioned state when the hulls are touching the... | 01/05/1988 |
| 4671198 | Multi-hull, anti-capsizing sailboat A three hulled sailboat consists of a tripod frame having three generally horizontal spars which define support points at their distal ends. During the sailing of the boat, one support point is always toward the windward, and the other two support points ... | 06/09/1987 |
| 4496325 | Collapsible paddle boat A paddle boat comprising a plurality of floats, collapsible driving and propelling apparatus, folding steering apparatus, the driving and propelling apparatus and steering apparatus adapted for mounting onto the floats during use of the paddle boat, parti... | 01/29/1985 |
| 4494472 | Floating and nonsubmersible nautical craft A floating, nonsubmersible nautical craft has a hull provided with portholes for observation of the underwater medium. It is buoyed and stabilized, and its draft can be varied. The hull and the apparatus by which it is buoyed and stabilized have a modular... | 01/22/1985 |
| 4474128 | Multi-hulled sailing vessel A sailing vessel having the performance capabilities of a multi-hull craft with the superior stability of a ballasted mono-hull craft, comprising a central hull supporting a mast and a pair of lateral hulls substantially parallel to the central hull and c... | 10/02/1984 |
| 4337715 | Articulated catamaran This invention relates to a boat of the catamaran type comprising two elongated floats interconnected by a beam system carrying a cockpit. The beam system is connected to each float by a transverse articulation oriented perpendicular to the longitudinal a... | 07/06/1982 |
| 3981259 | Catamaran with extensible hulls A boat of the catamaran type having the usual superstructure mounted on a frame mechanism to which a pair of spaced parallel hulls are pivotably mounted. The frame mechanism includes an actuatable extension apparatus which simultaneously pivots the hulls ... | 09/21/1976 |
| 3978536 | Collapsible watercraft A collapsible watercraft which can be readily transported along a highway when in its collapsed disposition but, upon arrival at a lake or other body of water, can be readily erected into an extended operative disposition capable of reception of a small t... | 09/07/1976 |
| 3970029 | Earth moving machinery made amphibious Conventional earth moving machines for dredging and scraping ponds or bogs are made amphibious, so as to enable them to move over water as well as over mud, by means of two detachable water-tight enclosures of tubular cross-section, placed on either side ... | 07/20/1976 |
