Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8006391 | Releasable locking mechanism for the shank of a knife or other implement A releasably locking mechanism for locking and releasing the shank of a blade or other implement snugly within a receiver, wherein a magnetized ball extends through aligned holes in the shank and the first wall of the receiver, and seats in a smaller hole in the sec... | 08/30/2011 |
| 7500314 | Hoof knife with moveably mounted blade A knife or hoof knife where the cutting blade element of the hoof knife is flexibly mounted in the knife handle, at least partially compensating rough motions during trimming. The knife with this design therefore fits more comfortably in the hand and enables, for ex... | 03/10/2009 |
| 7346988 | Soft handle non-retractable utility knife with quick release latch and method for making same A metallic housing utility knife and method for making the device with a soft over molded elastomeric cover to provide blister free comfort and slip proof safety. The cover or skin is molded into the unique structure of the housing in a fashion that results in mecha... | 03/25/2008 |
| 7322996 | Precisely guided lancet A lancet having one or more portions of the shank of the lancet blade exposed for direct engagement with cooperating portion(s) of the lancet carrier of a lancing device. This direct engagement of the lancet blade with the lancet carrier provides more precise positi... | 01/29/2008 |
| 7308763 | Sealant cutting tool with quick release, repositionable blade A sealant cutting tool including a handle defining a blade slot. Also included is a clamping bolt having a clamp axis transverse the blade slot, which clamping bolt is threadably engaged with the handle. In addition, a “T” pull is operatively associated with the... | 12/18/2007 |
| 7305729 | Combination tool for cutting and rolling A dual use hand tool apparatus has a handle portion of a length fully extensive over a palmer portion of a hand firmly gripping the handle portion. The apparatus also has a barrel portion that is integral and contiguous with the handle portion. The handle and barrel... | 12/11/2007 |
| 7257900 | Canted saw blade A saw blade incorporates an integrated cant angle. The saw blade includes a cutting portion having a toothed edge and opposite edge. The toothed edge defines a cutting plane. A shank portion extends from the cutting portion and is laterally offset from the opposite ... | 08/21/2007 |
| 7216434 | Electric-powered cutting machine An electric-powered cutting machine includes: an electric motor, a housing for the electric motor; a plunger driven by the electric motor to reciprocate; and a blade holding mechanism. The blade holding mechanism holds a blade at a tip end portion of the plunger. Th... | 05/15/2007 |
| 7210232 | Saw blade clamping mechanism for a power tool A saw blade clamping mechanism includes a holder connectable to a reciprocating shaft of a power sawing tool. The holder has a sliding way, a receiving slot for insertion of a saw blade, and a through hole in communication between the sliding way and the receiving s... | 05/01/2007 |
| 7207999 | Safety scalpel Presented herein are various embodiments of a safety scalpel. According to one embodiment is a safety scalpel system including handle capable of coupling to a blade with or without a safety housing. ... | 04/24/2007 |
| 7204180 | Apparatus for cutting plastic profiles An apparatus for cutting plastic profiles includes a knife which is guided transversally to the profile, the knife including a cutting section and a holding section, the cutting section defining a guide portion, a transition portion, and a blade portion defining a t... | 04/17/2007 |
| 7194809 | Quick release blade and knife A knife blade having a cutting edge with a first end and a mounting edge opposite the cutting edge. Typically the first end will be a point, but other configurations are possible. In addition, the knife blade has a first attachment slot extending from the mounting e... | 03/27/2007 |
| 7171752 | Hair trimmer A trimmer includes a blade connection portion and a handle, and a blade is engaged with a recess defined in one side of the blade connection portion. A C-shaped clamp has two ridges extending from two insides thereof and the two ridges are slidably engaged with a fi... | 02/06/2007 |
| 7155789 | Cutter adjustment system An improvement for a cartridge case trimmer which indexes on the shoulder of the case as established by the resizing die and permits a rotating cutter assembly to trim the neck of cases from the inside at a controllable angle. The cutter assembly includes a notched ... | 01/02/2007 |
| 7155831 | Ceramic cutting tool A ceramic cutting tool (100) is for high speed cutting of light, thin and soft materials. The ceramic cutting tool includes an upper blade (10) and a lower blade (20) both made of ceramic material. The upper and lower blades therefore possess ex... | 01/02/2007 |
| 7121356 | Tools and methods for retrieving buried coins and other treasure A “sod saver” tool for digging to acquire an object buried in the ground, and a non-metallic scraping tool utilized when carefully examining the soil. The sod saver tool includes a main cylindrical body rotated about its longitudinal axis for digging a substanti... | 10/17/2006 |
| 7121007 | Cutting assembly for removing a windshield and method relating to same The cutting assembly functions to sever the urethane bed bonding a windshield to a vehicle. The assembly comprises a reciprocating air gun connected with a cutting blade by a shaft. The blade has a straight front cutting edge about 4 inches in width. The blade is re... | 10/17/2006 |
| 7087067 | Surgical scalpel with protective sheath A protective sheath for a disposable surgical scalpel includes at least three modes of operation, (i) a protective mode, (ii) an open mode, and (iii) a permanently locked mode. In the open mode, a locking strip of the scalpel handle resides in one opening of the she... | 08/08/2006 |
| 7055248 | Surgical knife blade attachment and method for using same A system and method are disclosed for securing a blade to a blade post or handle base. A handle base is provided with a receiving port that includes a taper or dovetail configuration along a portion of each wall. The receiving port accepts a blade, and a cap is posi... | 06/06/2006 |
| 7040023 | Toolless blade holder for a reciprocating tool A reciprocating saw is provided having a motor oriented within a housing for operably driving a saw bar and blade holder in a reciprocating motion. The blade holder has a longitudinal slot for receiving a saw blade, and a transverse aperture extending into the longi... | 05/09/2006 |
| 6925920 | Knife holder and knife for a microtome The invention relates to a knife holder for a microtome having a knife receiver for fixing and positioning a knife and a knife for the knife holder. The knife holder is ergonomic, the operation is made easier and safer, and the knife does not need to be changed as o... | 08/09/2005 |
| 6865816 | Replaceable blade utility knife with magnetic actuator A replaceable blade utility knife is disclosed that uses permanent magnet to facilitate opening the knife handle for blade replacement. The utility knife has a handle made of two halves. The halves are held together by a connector, and rotate around the connector wh... | 03/15/2005 |
| 6865813 | Tool having a holder for mounting on a drive shaft A tool is disclosed having a holder provided with a mounting opening for mounting on a drive shaft, which may be driven in oscillating fashion, and having further a fixture for mounting a working element. The working element comprises at least two holding sections, ... | 03/15/2005 |
| 6857348 | Arrangement for clamping a saw blade An arrangement for clamping a saw blade (12) includes a retaining member (6) on which a blade (12) for clamping can be mounted. The retaining member (6) is lockable in at least two positions such that each of the two positions clamps the ... | 02/22/2005 |
| 6854187 | Blade clamp mechanism The present invention relates to a keyless blade clamp mechanism including a base, a sliding block slidably disposed on the base and a clamping lever pivotally connected on the base. On one pivot side of the clamping lever is a clamp plate and on the other pivot sid... | 02/15/2005 |
| 6848185 | Utility knife A utility knife including: a body defining an interior cavity, and a blade carriage slidably disposed within the cavity. The blade carriage is configured for removably receiving at least one blade, and is at least partially slidably removable from the cavity, thereb... | 02/01/2005 |
| 6845561 | Replaceable-blade knife A replaceable-blade knife useful as a carpet knife or utility knife, and having a handle with a spare-blade holder movably mounted therein, and a blade-clamping bar for securing an active cutting blade at one end of the handle. A locking means is provided to lock th... | 01/25/2005 |
| 6810782 | Detachable tool fixing mechanism and tool for use therewith A tool fastening mechanism has a housing 2, in which a clamping opening 3 is embodied for receiving a tapering tool shaft clamping end 4 of a tool part 5. The clamping opening 3 tapers inward in the introduction direction of the cl... | 11/02/2004 |
| 6782626 | Apparatus and method of assembly of fixed blade knife A fixed blade knife or bayonet having integral blade and tang portions and a handle having a cavity extending therethrough from distal to proximal ends. A slot is formed in the tang, extending from an open end at the terminal end of the tang to a closed end, with a ... | 08/31/2004 |
| 6735876 | Blade clamps suitable for reciprocating power tools Blade clamps (26, 110) may reliably secure blades (22) to reciprocating power tools (10). The power tools may include a reciprocating drive shaft (24) partially extending from the tool housing (12). A first end of a rod (37, 112... | 05/18/2004 |
| 6691416 | Cutter for vehicle safety belts or the like A cutter for vehicle safety belts or the like includes a body having a head in an upper portion and a handle in a lower portion. The head has a blade base surface for a cover plate to be put thereon. The blade base surface is formed relatively lower for r... | 02/17/2004 |
| 6651346 | Hand tool with interchangeable implements A hand tool having a handle provided with a mating surface for detachably securing the handle to a removable attachment. The mating surfaces of the handle and the removable attachment are exposed when not secured together. This feature facilitates cleanin... | 11/25/2003 |
| 6629985 | Surgical scalpel with retractable guard A safety scalpel blade assembly comprising a scalpel blade, a guard which extends at least about the cutting edge of the blade, and releasable attachments device which releasably attach the blade to the guard as the assembly is being attached to the scalp... | 10/07/2003 |
| 6550144 | Hollow-handle razor knife with blade slide A razor-knife housing has a neat part retaining a blade and displaceable in the housing through a front-end slot between an extended position with the blade mainly outside the housing and a retracted position with the blade wholly inside the housing. A re... | 04/22/2003 |
| 6532670 | Utility knife with screw-down pivotal blade clamp A utility knife has a flat blade formed with at least one throughgoing hole, a housing member forming a seat adapted to receive the blade, and a retainer member engageable with the blade on the seat. A pair of respective pivot elements on the housing and ... | 03/18/2003 |
| 6508003 | Universal saw adapter An adapter is provided for removably coupling a saw, including a tang portion having an aperture formed therein, to a tool. The adapter includes a base member and a clip pivotally coupled to the base member. The base member has first and second ends, and ... | 01/21/2003 |
| 6357120 | Front-loading adjustable safety utility knife with safety quick-release lock An adjustable safety utility knife includes an elongated ergonomically shaped handle formed of two elongate shell members each having a peripheral edge and an outer generally convex surface and an inner generally concave surface. The shell members are fas... | 03/19/2002 |
| 6253454 | Drywall tool The tool of the present invention is designed to facilitate small repairs in walls. It is useable to repair dents, holes, and cracks in dry wall, plaster, stucco, or like materials. It is also useable to install drywall. The tool has a plurality of groove... | 07/03/2001 |
| 6209208 | Keyless blade clamp mechanism A reciprocating tool (e.g., a reciprocating saw) comprising a housing, a spindle mounted for reciprocating movement within the housing and having an end adapted to receive a saw blade, and a blade clamp mechanism connected to the spindle and adapted to at... | 04/03/2001 |
| 6113619 | Two stage releasing interlocking system A two stage releasing interlocking system for mounting a medical device tool which includes a jaw head having an aperture. A collet having an upper portion and a lower portion is rotatably mounted within the jaw head. The upper portion of the collet has a... | 09/05/2000 |
