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Patent No. 5823572

Self Defense Weapon With Memo

A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.

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Class 114/360 - With means to prevent capsizing or sinking


Subclass of Class 114 - Ships
Definition: Device in which the boat has an attached float, a built
No. of patents: 53
Last issue date: 03/31/2009


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NumberTitleIssue Date
7509920Inflatable fender system and method
An inflatable fender system for protecting a watercraft from damaging contact with a permanent object, such as a dock, wharf, piling and rafted watercraft. Two elongated flexible substantially airtight tubular fenders are provided having a generally flat cross secti...
03/31/2009
7424860Rollover boat
A boat compensates for roll over conditions by maintaining a user in an upright position at all times. The boat contains an external frame, an internal frame disposed for moving within the external frame, and a seat assembly attached to the internal frame and mainta...
09/16/2008
7337744Boat safety float
An aquatic vessel safety device, comprised of a set of automatically inflatable water-tight inflatable flotation bladders, attached to the hull of any aquatic vessel or boat capable of being quickly inflated when the aquatic vessel is in danger of being sunk or caps...
03/04/2008
7165505Integrated accessory for an inflatable apparatus
Apparatus including an inflatable enclosure delimited by a flexible wall to which an accessory is secured. The wall has an opening defined by an edge to which a protruding reinforcement is secured; two rigid frames straddle the edge of the opening on each side of th...
01/23/2007
7156033Inflating aircraft flotation device
A flotation device for maintaining an aircraft in a floating and stable condition is provided. The flotation device comprises at least one flotation bladder mounted to the aircraft and an inflation mechanism for inflating the flotation bladder. A method for maintain...
01/02/2007
7069873Watercraft with inflatable stabilization ring
Watercraft with a solid hull and a solid outer side, where a recess extending essentially in a horizontal plane is formed in the outer side of said watercraft above the water line, in which recess an elastically deformable safety element is permanently installed, wh...
07/04/2006
7040938Armored foldaway inflatable floating device
Disclosed is an AFIFD mounted on the front surface and both side surfaces of an amphibious vehicle to provide additional buoyancy. The AFIFD allows safe swimming of the amphibious vehicle, provides rapidity through automated folding and unfolding processes. The AFIF...
05/09/2006
6968802Buoyant retrieval of unmanned seawater vehicles
An unmanned sea vehicle is provided with a canister storing therein a net assembly in a deflated condition attached to the sea vehicle through the canister by a lanyard in a folded condition. The net assembly is connected to an inflation gas generator through which ...
11/29/2005
6928949Canoe stabilizer having vertically adjustable buoyancy
A stabilizer is releasably attached to a canoe-like boat and includes two floats that are located outside the periphery of the boat. The floats are attached to bars, and lock mechanisms attach the bars to the boat. The bars are releasably attached end-to-end. Each f...
08/16/2005
6881108System for preventing an automobile from being immersed in water
The present invention relates to a system to float an automobile on water. The system comprises holder assemblies, a detecting sensor, a pneumatic system, envelopes, a propulsive system, and a steering system. The holder assemblies are fixed on the beams of the auto...
04/19/2005
6845726Inflating watercraft flotation device
A flotation device for floating a watercraft is provided. The flotation device comprises a cover releasably secured to the watercraft. A first collapsible tubing is positioned between the cover and the watercraft for removing at least a portion of the cover. At leas...
01/25/2005
6830004Inflating watercraft flotation device
A flotation device for maintaining a watercraft in a floating condition is provided. The flotation device comprises a mounting plate mounted to the watercraft with the mounting plate having a first cover channel, a second cover channel, a first bladder-retaining slo...
12/14/2004
6802274Inflating watercraft flotation device
A device for floating a watercraft in a body of water with the watercraft having a water line is provided. The device comprises an inflatable first flotation bladder mountable adjacent the waterline and an inflatable second flotation bladder adjacent the first flota...
10/12/2004
6758158Unsinkable vessel system
A system for making closed vessels unsinkable. The separate parts of the system are at least one air compressor, a compression chamber, a compressor/propeller clutch, at least one airbag, heating elements, and a diameter restrictor/gauge track. Additional features o...
07/06/2004
6612256Combination boat and distressed boat flotation apparatus and related methods
A combination boat and distressed boat flotation apparatus, a distressed boat flotation apparatus, and methods of installing and using a boat flotation apparatus are provided. The combination preferably includes a boat including a boat hull and a pluralit...
09/02/2003
6598550Emergency buoyancy system for a vessel
An emergency buoyancy system mounted to a vessel includes a depth sensor to sense a predetermined maximum depth, and an actuator actuated by the depth sensor. The actuator, upon actuation, opens a membrane between tanks, each holding one of a pair of gas ...
07/29/2003
6595812Amphibious vehicle
An amphibious vehicle for traversing a body of water or solid terrain such as a layer of ice floating atop the body of water. The vehicle includes a floatable boat hull having an elongate aperture there-through, and a snowmobile for traveling over the sol...
07/22/2003
6550415System to keep any type of vessel afloat in case of a leak
A system to keep any type of vessel afloat in case of entry of water or capsizing by means of providing an unfolding mechanism of inflatable flotation and stabilization elements through the outside of the hull of the vessel, including a variety of devices...
04/22/2003
6484656Automatic inflating boat flotation device
A flotation device for maintaining a watercraft in a floating condition is provided. The flotation device comprises an elongated housing mounted to the watercraft. A carrier is slidably received within the housing with the carrier having a first and secon...
11/26/2002
6460477Sponson and rigid inflatable boat incorporating the same
An improved sponson and rigid inflatable boats incorporating the same. The sponson includes a non-inflatable buoyant component, such as closed-cell polyethylene, and an inflatable buoyant component, such as one or more inflatable tubes. The boat includes ...
10/08/2002
6435125Float switch activation assembly
A switch system for automatically activating a mechanism such as a gas or fluid supply, an electrical switch, or chemical process is provided. The switch system comprises a float housing and a float slidable within the float housing with the float slidabl...
08/20/2002
6431108System for keeping afloat any type of boat in case of a leak
A system to keep any type of vessel afloat in case of entry of water, by means of providing inflatable flotation elements through the outside of the hull of the vessel, including a variety of mechanisms that are activated automatically when a water level ...
08/13/2002
6408782Damaged boat floatation system
A damaged boat floatation system for providing floatation to damaged boats. The damaged boat floatation system includes a floatation assembly including air inflatable tubular members being attached end-to-end to form an endless tube being adapted to fit a...
06/25/2002
6394019Anti-capsize watercraft
An anti-capsizing watercraft for propulsion over rough water includes three flotation members radially and circumferentially spaced connected with a hub member and an occupant platform rotatably connected with said hub member whereby at least two floatati...
05/28/2002
6394867Emergency self-inflating flotation device
A vehicle seat comprising a seating substrate, an outer seat covering, and a housing containing an integrated self-inflating floatation device. The self-inflating flotation device includes one or more inflatable flotation bladders and an inflator that is ...
05/28/2002
6343562Canoe and kayak mid-point sponsons safety
Canoe and kayak mid-point sponsons attach to the canoe or kayak only at the mid-point of the sponsons, to enable the sponsons to rotate around the midpoint in order to reduce drag in waves and simplify attachment and detachment to the canoe or kayak, whil...
02/05/2002
6327988Ship with a protection system making it unsinkable
A watercraft, e.g. a passenger vessel, a ferry, a hazardous-substance freighter or the like, with a deck and with a buoyancy chamber in the deck, it being the case that, in a first operating state, the buoyancy chamber contains air, is characterized in th...
12/11/2001
5947788Radio controlled surfboard with robot
A radio controlled surfing toy is provided comprising a multi-jointed, moveable figurine pivotally attached to a jet-propelled surfboard. The surfing toy surfs similar to a real life surfing professional in waves ranging from 3" to 5' in height. The surfi...
09/07/1999
5921831Auxiliary device for inflatable life rafts
An auxiliary device for an inflatable life raft, wherein the life raft has a flotation body, including at least one support tube and a bottom and further having a roof structure, including an inflatable support and a cover, has at least one bracket positi...
07/13/1999
5676086Rear storage assembly for watercraft
A small watercraft having a hull with a bow portion and stern portion. A raised pedestal is provided on the hull and supports an elevated seating assembly that includes a seat for accommodating at least one rider. A buoyant storage assembly extends transv...
10/14/1997
5546886Craft with rigid tubulars, having watertight, non-communicating compartments
A water craft includes a rigid tubular hull structure corresponding to the structure of inflatable tubulars of known rubber dinghies. Preferably, the hull is made of polyester reinforced with glass fiber, plastic or metal. The external shape of the tubula...
08/20/1996
5429062Rapid bailing device
A bailing device is used with a watercraft having a hull adapted to sit in a body of water and having a deck normally above a waterline defined by the body of water and formed centrally with a cockpit. The bailing device has a pair of inflatable flexible ...
07/04/1995
5279248Kayak righting method and apparatus
The present invention provides a method and an apparatus for reducing the skill required of a paddler to right a capsized kayak without exiting it, and to thus avoid the dangers associated with exiting a kayak after capsize. In broad terms, the paddler is...
01/18/1994
5215031Protect a boat
A protection device for a boat having a rigid hull with a waterline, gunwale and a cockpit is provided. The device consists of a first inflatable bumper mounted to the rigid hull about the gunwale, which will absorb impacts to the hull when the boat is pu...
06/01/1993
5203727Control apparatus for an outboard marine engine with improved cruising performance
A control apparatus for an outboard marine engine is able to improve cruising performance of a boat particularly during acceleration or travelling on a curved course. An attitude angle sensor senses a three-dimensional attitude of the outboard engine incl...
04/20/1993
5144904Stabilizing apparatus
Stabilizing apparatus for stabilizing boats comprising a weighted concave body which is suspended from the boat and which is formed as a grid defining openings through the body and a flexible flap in the concavity of the body, the flap blocking the openin...
09/08/1992
5120159Oil containment system for emergency use
A system for containing oil or other contaminants which have leaked from an oil tanker or similar structure is disclosed. A protective housing surrounds the structure. A plurality of covers are each pivotably mounted at its upper edge to a lower outer edg...
06/09/1992
5111765Hull construction for small watercraft
A small jet propelled watercraft having a partially open rider's area covered at least in part by a roof. The construction and orientation of the roof is such to insure that the watercraft cannot be inverted in the water....
05/12/1992
5095843Storage and buoyancy device for small watercraft
Several embodiments of hull configurations for small watercraft wherein the gunnels at the side of the watercraft are raised and provided with sealed storage areas that increase the buoyancy of the hull and which can be flooded for assisting in re-entry....
03/17/1992
4864961Auxiliary flotation system
Auxiliary flotation apparatus to provide supplemental flotation for a vessel which may be in danger of sinking. The apparatus is a self-contained cannister capable of being connected to a source of pressurized air. To assure stability of the disabled vess...
09/12/1989
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