William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8015714 | Shield attachment for hand-held digging tools The present invention provides a removable shield attachment for hand-held digging tools which is mounted on the tool handle below the tool head so as to not interfere with gripping along the length of the handle. The shield generally comprises a mounting portion ad... | 09/13/2011 |
| 7533469 | Competition/leashless ice axe with adjustable grip An ice axe device has an adjustable grip. The ice axe includes an elongated shaft with opposite proximal and distal ends. A pick is disposed at the distal end of the elongated shaft, and a grip is disposed at the proximal end of the elongated shaft. A pommel is adju... | 05/19/2009 |
| 7472484 | Universal outdoorsman tool A single universal tool for the outdoorsman, combining a multi-edged tool head with a multi-grip tool handle, which allows for separate and specific use of each portion of the tool head, depending on the portion of the handle gripped and the tool edge to be used. It... | 01/06/2009 |
| 7256320 | Method for defeat of bulk chemical warfare agents A method for immobilizing at least one hazardous chemical, comprising the steps of breaching a container having a bulk chemical agent, adding a rheological modifier into the container, and dispersing the rheological modifier within the container so as to promote int... | 08/14/2007 |
| 7228633 | Saber For use as a law enforcement weapon, a saber is provided having an elongated blade and a hilt affixed to one end thereof The blade has a triangular cross section including a pair of concave sides converging to a sharp common edge. The third side in opposed relation ... | 06/12/2007 |
| 7225544 | Ice axe for mountaineering with adjustable grip The ice axe for mountaineering includes a head, a shaft, and an anatomical grip having one free end and an end secured to the shaft. The grip defines a handling zone of the ice axe and includes an adjusting member for adjusting the length of the handling zone. The a... | 06/05/2007 |
| 7219382 | Multi-purpose tool A tool that can be assembled into multiple configurations for various uses. The tool includes at least two shafts that connect together, as well as multiple, interchangeable accessories that can be coupled to the shafts. Examples of some accessories include a stake,... | 05/22/2007 |
| 7174808 | Hand tool An apparatus for locking the head of a hand tool to the handle of the tool. The apparatus generally includes a tapered handle with one or more groove cut into the handle at the tool end of the handle. The grooves are then filled with a compressible material. The hea... | 02/13/2007 |
| 7143667 | Striking or pulling tool with a split head A striking and pulling tool, such as a hammer, having separate head elements secured to opposing sides of a handle. The tool may be part of a system with interchangeable components. ... | 12/05/2006 |
| 7124522 | Cultivating tool and apparatus incorporating same A cultivating tool for breaking up and spreading plant material over and into the ground has opposed ends and upper, lower and intermediate portions extending longitudinally between the ends. The lower portion includes a cutting edge. The intermediate portion includ... | 10/24/2006 |
| 7096761 | Ergonomic tool handle and related hammer system An ergonomic handle for a hand tool includes a main portion extending in a longitudinal direction between a gripping portion and a tool head supporting portion opposite the gripping portion. Both the gripping portion and the tool head supporting portion are offset a... | 08/29/2006 |
| 7051390 | Multi-purpose tool A multipurpose tool is designed to meet the particular needs of commercial truck drivers. Preferably, it has a unitary, single-piece head which includes a chopping tool, a hammering tool, and a prying-pivoting tool, and a nail and/or staple removal assembly. Prefera... | 05/30/2006 |
| 7036952 | Single body multi-tool device A single body multi-tool device having a plurality of compartments in a housing thereof. Mounted in these compartments are various hand tools such as a hatchet, a digging tool, a flashlight, a knife and a saw, each being separately usable without interfering with th... | 05/02/2006 |
| 6976406 | Striking tool with weight forward head The present invention provides a hand-held striking tool that has a head disposed forward of the centerline of a handle. The hand-held striking tool of the present invention may further include a flange positioned beneath the head of the tool, the flange functioning... | 12/20/2005 |
| 6961985 | Method and apparatus for joining a handle to a hammer head A striking tool comprising a head assembled to a handle having a long axis is characterized in that the head comprises a closed cavity extending into the head in the direction of the long axis, an opening through a wall of the head into the cavity, the opening exten... | 11/08/2005 |
| 6944955 | Competition/leashless ice axe with adjustable grip An ice axe device and method has an adjustable grip. The ice axe includes an elongated shaft with opposite proximal and distal ends. A pick is disposed at the distal end of the elongated shaft, and a grip is disposed at the proximal end of the elongated shaft. A pom... | 09/20/2005 |
| 6945138 | Recoiling striking device A striking device including a head having a striking surface and a base mounted on an end of a handle for reciprocation in a linear motion. A rail structure is carried by the end of the handle. A rail receiving structure is carried by the base and receives the rail ... | 09/20/2005 |
| 6901822 | Method and apparatus for joining a handle to a hammer head A striking tool comprising a head assembled to a handle having a long axis is characterized in that the head comprises a closed cavity extending into the head in the direction of the long axis, an opening through a wall of the head into the cavity, the opening exten... | 06/07/2005 |
| 6647829 | Striking tool with weight forward head The present invention provides a hand-held striking tool that has a head disposed forward of the centerline of a handle. The hand-held striking tool of the present invention may further include a flange positioned beneath the head of the tool, the flange ... | 11/18/2003 |
| 6640447 | Dead-blow recoilless axe An axe capable of delivering a relatively intensified impact and reduced recoil compared to prior art axes. The axe includes a head, a handle, a rigid casing, and shock-absorbing particles disposed within a portion of the axe. The head includes a blade en... | 11/04/2003 |
| 6568016 | Firefighter's axe A firefighter's axe generally comprising a handle having a top end and a bottom end, a stem forming a portion of the elongated handle adjacent the top end of the handle, and a head having a front end and a rear end. Formed on the front end of the axe head... | 05/27/2003 |
| 6564849 | Handle for a utility tool A handle for a tire bead breaking tool is disclosed, comprising an elongate shaft having a gripping portion, a shield portion, and a working portion at a forward end. The working portion is configured having an oblong cross-section comprising protruding o... | 05/20/2003 |
| 6435059 | Light-weight striking tool A striking tool having a handle with a head attached thereto. The head having a striking surface. The head being constructed of titanium or titanium based alloy so that the tool can be swung with a higher velocity than a striking tool having a heavier ste... | 08/20/2002 |
| 6385854 | Fire fighting tool for making a hole in a ceiling A fire fighting tool for making a hole in a ceiling. The tool includes a body, a hook, and a handle. The body has a first terminal end and a second terminal end. The hook has a working area and is disposed on the first terminal end of the body and pierces... | 05/14/2002 |
| 6289540 | Firefighting tools A set of firefighting tools for use in fighting forest fires and the like in different types of terrain and vegetation. An elongate handle is equipped with a releasably latching connector, and several different tool heads are attachable to the handle to p... | 09/18/2001 |
| 6234048 | Nonrecoil hammer An improved nonrecoil or deadblow hammer and related production method are provided, wherein the hammer has a tool head of hardened steel or the like formed with a hollow socket containing a filler material adapted to shift in the direction of an impact b... | 05/22/2001 |
| 5996235 | Ice axe An ice axe which includes a handle/shaft having a gripping end and a working end, an axe head attached to the working end, and a grip attached to the gripping end. The working end of the handle/shaft is configured with a shorter cross-sectional dimension ... | 12/07/1999 |
| 5937466 | Lugged ice axe head A lugged ice axe head including a head portion which may have accessories, such as an ice pick, attached thereto; and a lug sleeve attached to and extending generally downwardly from the ice axe head. The lug sleeve has a hollow central portion with an op... | 08/17/1999 |
| 5758552 | Tool handle safety plate A safety plate apparatus is used with a tool that includes a handle and a head attached to the handle. The tool head has a handle-receiving channel which has a transverse channel dimension. The tool handle has a channel-inserted handle end which is insert... | 06/02/1998 |
| 5709031 | Fire fighter's hatchet A light-weight hatchet for use by firefighters and rescue workers is disclosed. The hatchet includes a head (11) having a blade side (15) and a cutting side (17), both designed to rip and tear an obstruction, such as a roof, wall, door, etc., without beco... | 01/20/1998 |
| 5701675 | Axe combination tool An axe is provided with an open cavity in the handle for receiving a removably secured secondary tool. A securing assembly includes a spring biased projecting member extending from the secondary tool passing through a hole in the axe handle. The securing ... | 12/30/1997 |
| 5647080 | Ax hammer An ax hammer (10) for use in carpet laying, including a head (11) having a base (19) on which a hammering surface (20) is mounted at the one extremity of head (11), and a blade (30) disposed at the head's other extremity. A lowermost niche or hollow (241)... | 07/15/1997 |
| 5482097 | Wood splitting maul An improved wood splitting maul wherein the striking edge is at an improved angle and the head unit has a substantially flat outward surface substantially perpendicular to a handle when the handle is assembled to the head unit. The improved angle makes th... | 01/09/1996 |
| 5425176 | Handle for ice axe An ice axe device comprising a handle having a gripping end and a working end and an impact member attached at the working end. The gripping end is configured about its longitudinal axis with a smaller, forward curvature and a larger, rearward curvature. ... | 06/20/1995 |
| 5408902 | Composite percussive tool A composite split head percussive tool including a rigid load bearing framework which carries a non-load bearing head assembly. The non-load bearing head assembly comprises a pair of axially aligned split heads that are interconnected to each other by an ... | 04/25/1995 |
| 5394917 | Wood splitting maul An improved wood splitting maul wherein the striking edge is at an improved angle. The improved angle makes the maul easier to use, more efficient, and provides less shock to a user's body. The improved angle is defined by a straight line essentially runn... | 03/07/1995 |
| 5347718 | Folding handle hatchet A split folding handle hatchet is disclosed that in a first position can be used as a hatchet and in a second position can be used as an Eskimo ulu-type of scraper. The hatchet shank is securely held by unique raised surfaces on the inside of each handle ... | 09/20/1994 |
| 5319855 | Mineral cutter tip and pick A tip (1A, 1B, 1C, or 1D) of hard material has in at least one external surface, a wear line or marker (12) in the form of a rib (13, 16 or 17), or a groove (15) capable of being felt by a thumb or finger of a miner, so that a visual inspection for wear i... | 06/14/1994 |
| 5261164 | Swiveled axe and hatchet A swivel axe having a swivel shaft which is attached to a striking means at one end of the swivel shaft. A holed-flange is provided at a connecting end of the swivel shaft. The swivel shaft and a main shaft are connected by means of a ball-lock-pin which ... | 11/16/1993 |
| 5141353 | Implement having a thermoplastic handle molded over an intermediate portion of a working head An improved implement including an injection molded thermoplastic handle and an implement head adapted to be placed in the mold in which the handle is to be manufactured in the injection molding process, and in which the implement head is adapted to recei... | 08/25/1992 |