...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7980180 | Jacketed one piece core ammunition A jacketed projectile having one-piece steel core provides good performance regarding chamber pressure, barrel wear and accuracy by separating the jacket from a central tapered portion of the core by providing an encircling air gap that facilitates engraving of the ... | 07/19/2011 |
| 7543535 | Rifle bullet for hunting purposes Rifle bullet for hunting purposes, with a jacket of a lead-free soft ductile material and a core, connected to the jacket, made from a material softer than the jacket. The aim of the invention is to improve the bullet to provide a persistent cut of hair and bleeding... | 06/09/2009 |
| 7493862 | Jacket bullets This invention relates to ammunition. More specifically, this invention is related to rimfire ammunition cartridges with heeled bullets, such as .22 long rifle ammunition cartridges. The invention extends to a heeled bullet for use in such ammunition. ... | 02/24/2009 |
| 7328658 | Slug for industrial ballistic tool A frangible projectile for expelling from an industrial ballistic tool may be formed by a powder metallurgy process. A preferred embodiment of slug consists essentially of compacted and optionally sintered material and comprises up to 35% ferrotungsten in particulat... | 02/12/2008 |
| 7322297 | Cannelured frangible projectile and method of canneluring a frangible projectile A method of canneluring a frangible projectile includes the steps of rotating the projectile at a high speed, and cutting the cannelure into the projectile to form a frangible cannelured projectile. To ensure that the body is not damaged during cutting, the cutting ... | 01/29/2008 |
| 7311046 | Bullet for infantry ammunition The invention relates to a bullet for infantry ammunition comprising a bullet core (1), a bullet tip (13), and a metal case (2). The aim of the invention is to create a durable connection between the bullet core (1) and the metal case ( | 12/25/2007 |
| 7302891 | Firearm projectile with enhanced aerodynamic properties A firearm projectile includes a central section, a forward or leading section, and a rear or trailing section. A step down is provided between the central section and the trailing section such that the cross sectional area of the trailing section is less than the cr... | 12/04/2007 |
| 7299733 | Bullet with spherical nose portion A bullet includes a frontward facing aperture. Contained within the aperture is a relatively hard bullet frontal element that provides advantageous bullet impact performance. In one embodiment, the frontal element is a steel sphere that provides advantageous penetra... | 11/27/2007 |
| 7210411 | 4.6 mm small arms ammunition A round of ammunition for firing from a gun having a rifled barrel, especially a small arms weapon. The projectile (1) forming a part of the round is of steel or other material having a Vickers Hardness value not less than 550, and has a coating (13) o... | 05/01/2007 |
| 7162942 | Bullet A plated hallow point bullet has a metallic plating which completely encapsulates a metallic core. A core precursor is formed having a nose compartment. A metallic coating is applied to the precursor to completely encapsulate the precursor. The coated precursor is m... | 01/16/2007 |
| 7159519 | Slug for industrial ballistic tool A frangible projectile for expelling from an industrial ballistic tool may be formed by a powder metallurgy process. A preferred embodiment of slug consists essentially of compacted and optionally sintered material and comprises up to 35% ferrotungsten in particulat... | 01/09/2007 |
| 7150233 | Jacketed boat-tail bullet A bullet includes at least a mid core and a rear core in tandem alignment. The hardness of the mid core is greater than the hardness of the rear core. A jacket envelops both the mid core and the rear core. The jacket has a generally cylindrical sidewall, which is in... | 12/19/2006 |
| 7127996 | Dimpled projectile for use in firearms A projectile for use in firearms and of the type having on one end a hemispherical tip which communicates at its base with a nose segment which then attaches to a cylindrical body terminating in a surface whose width represents the diameter of the aforementioned cyl... | 10/31/2006 |
| 7121211 | Projectile having frangible trailing end barrier and method An ammunition projectile comprising a metal jacket containing a powder-based core incompletely filling the trailing end of the jacket, and a disc overlying the trailing end of the core within the jacket, the disc being frangible by reason of a plurality of indentati... | 10/17/2006 |
| 7073425 | Method of making an environmentally safe substitute for lead shot A shot pellet that, has an inner core of a material such tungsten carbide, that is coated with a layer of bismuth. This coating is molecularly bonded to the tungsten carbide and is not an alloy. The unique properties of the shot pellet allow its density to be tailor... | 07/11/2006 |
| 7036433 | Ammunition projectile having enhanced aerodynamic profile A projectile 10 for gun ammunition of a size not greater than 50 caliber comprising a solid metal jacket 82 of generally cup-shaped geometry and having a closed end 102 and an open end 88, a core 84 formed from a mixture of metal p... | 05/02/2006 |
| 7017495 | Gun firing method for dispersion of projectiles in a pattern A method for the dispersion of projectiles from guns capable of firing multiple projectiles in rapid succession whereby some of the projectiles are modified by moving the center of mass of the projectile away from it's central axis and oriented prior to firing. This... | 03/28/2006 |
| 7013786 | Method of making an environmentally safe substitute for lead shot A shot pellet that, has an inner core of a material such tungsten carbide, that is coated with a layer of bismuth. This coating is molecularly bonded to the tungsten carbide and is not an alloy. The unique properties of the shot pellet allow its density to be tailor... | 03/21/2006 |
| 7000525 | Method of making an environmentally safe substitute for lead shot A shot pellet that, has an inner core of a material such tungsten carbide, that is coated with a layer of bismuth. This coating is molecularly bonded to the tungsten carbide and is not an alloy. The unique properties of the shot pellet allow its density to be tailor... | 02/21/2006 |
| 6973879 | Monolithic high incapacitation small arms projectile A small arms projectile for an increase in accuracy, incapacitation effects, and penetration of light material targets. The projectile includes a monolithic heat-treated steel core with a plated on jacket for strong adherence. A swaged or machined cannelure groove t... | 12/13/2005 |
| 6971315 | Reduced-contaminant deformable bullet, preferably for small arms Currently, 9 mm×19 mm caliber cartridges in the form of full-jacketed round-head bullets are used for small arms, especially for arms used by police. For safety reasons, efforts are being made to replace these bullets with a type of bullet that is prevented from pa... | 12/06/2005 |
| 6966265 | Unit of ammunition with one or more warhead casings An ammunition device (4) comprising one or more warhead effect jackets (17), each jacket containing warhead effect elements (18). The ammunition device also incorporates one or more explosive compositions arranged inside each warhead effect jack... | 11/22/2005 |
| 6964232 | Bullet with spherical nose portion A bullet includes a frontward facing aperture. Contained within the aperture is a relatively hard bullet frontal element that provides advantageous bullet impact performance. In one embodiment, the frontal element is a steel sphere that provides advantageous penetra... | 11/15/2005 |
| 6935243 | Bullet A plated hollow-point bullet has a metallic plating which completely encapsulates a metallic core. A core precursor is formed having a nose compartment with an inwardly extending cavity. A metallic coating is applied to the precursor to completely encapsulate the pr... | 08/30/2005 |
| 6675718 | Hydraulic cylinder projectile and method of making the same A hydraulic cylinder projectile assures radial expansion of the projectile upon impact at low velocity with a target. A hydraulic cylinder insert is disposed in an axial central bore of a projectile body. The hydraulic cylinder insert has a closed leading... | 01/13/2004 |
| 6439125 | Bullet The invention relates to a bullet having a tapered nose and a cylindrical base. The base is provided with an annular groove having a diameter less than the bore diameter of the barrel of the gun from which it is fired to reduce the force required to move ... | 08/27/2002 |
| 6374743 | Jacketed projectile with a hard core The invention relates to a jacketed projectile (100), comprising a tungsten carbide hard core (5) on the front side and an centered, interlocking soft core (8) placed on the hard core (5). A closed air space (6) is located between the front area (5a) of t... | 04/23/2002 |
| 6324985 | Low temperature solid state bonding of tungsten to other metallic materials A penetrator and method of making same are disclosed. The penetrator includes a tungsten ballast and a steel casing having a bore sized to fit the tungsten ballast therein. Copper and silver coatings are provided on mating surfaces of the tungsten ballast... | 12/04/2001 |
| 6244187 | Increased velocity-performance-range bullet A mushrooming bullet having a highly improved performance in the retention of the lead core within the bullet jacket subsequent to impact, and in performing effectively over a substantially wider velocity range, the bullet retaining its lead core within i... | 06/12/2001 |
| 6237497 | Spin-stabilized artillery projectile having gas pressure equalizing means A spin-stabilized projectile adapted to be fired from a weapon barrel, includes a projectile body having a length dimension, a rear length portion, an ogive-shaped front length portion and an intermediate length portion situated between the rear and front... | 05/29/2001 |
| 6209459 | Method for etching characters on bullets and bullets made by the method A method of marking bullets and bullets marked by the method are described. In one embodiment, the method comprises coating the bullet of a cartridge with at least one coating material whose surface appearance contrasts with the surface appearance of the ... | 04/03/2001 |
| 6209180 | Non-toxic high density shot for shotshells A composite shot for shot shells includes a ferrous metal core and a non-toxic coating having a density greater than that of lead. The overall density of the shot is at least as great as that of lead.... | 04/03/2001 |
| 6173652 | Environmentally sealed shot Shot having a lead or lead alloy core is sealed from the outside by at least one non-toxic layer which protects the environment from lead waste toxicity and which includes an abhorrent material to act as a repellant for preventing or deterring birds from ... | 01/16/2001 |
| 6158351 | Ferromagnetic bullet A lead free ferromagnetic article is disclosed. The article is a compacted composite having a heavy more dense constituent that is preferably ferrotungsten and a less dense second constituent that is either a metal alloy or a polymer. The ferromagnetic co... | 12/12/2000 |
| 6095052 | Corrosion resistant metal body, bullet blank, and bullet and method for making same A bullet comprises a lead sheet and a zinc foil fixed to the lead sheet, the sheet and foil being rolled and pressure formed into a bullet having generally helical layers of the lead sheet and zinc foil. The bullet exhibits an improved environmental impac... | 08/01/2000 |
| 5852858 | Non-toxic frangible bullet A non-toxic highly frangible training round bullet, and a method of making same, in which a plurality of segments of non-toxic metal selected from a group including zinc, iron, steel and copper are grouped or arranged within pressure-molding equipment and... | 12/29/1998 |
| 5794320 | Core bullet manufacturing method The invention relates to a highly accurate core bullet with a massive core (2) and a jacket (1) for a fire arm. The core (2) extends over the entire length of the bullet and has a diameter along at least the largest portion of its length which is signific... | 08/18/1998 |
| 5747724 | Shot pellets for game hunting on wet marshlands and method of manufacturing such shot The invention relates to shot pellets for hunting in wet marshlands or corresponding wet areas. The shot has an inner core of copper or copper alloy and an outer layer of silver or silver alloy. No heavy metal will leach from the shot into the environment... | 05/05/1998 |
| 5686693 | Soft steel projectile The projectile is made of a virtually lead free steel alloy containing tellurium. This projectile is more environmentally safe compared to conventional lead bullets. The tellurium in combination with a small amount of lead provides a steel alloy having a ... | 11/11/1997 |
| 5641937 | Bullet A soft nose, bonded lead core bullet for rifles and pistols and a method of making the bullets is disclosed. The bullets have a Jacket of copper based material with a solid base portion and an upper nose portion having a cavity in which the lead core is l... | 06/24/1997 |