Patent application number | Description | Published |
20080250666 | Elastic Overshoe with Sandwiched Sole Pads - An elastic overshoe has an outer layer through which extend a plurality of protrusions. The protrusions are preferably carried on an inner layer, which is sandwiched between the outer layer and the shoe upon which the overshoe is placed. Inner layer segments can run the length of the overshoe, or more preferably include only a ball region of a toe region. The openings can have any practical size, shape, orientation and arrangement of openings, although of course at least some of the openings must be aligned with at least some of the protrusions, and ideally the protrusions will fit snugly within the openings to avoid tearing of the openings. The inner and outer layers can advantageously have different chemical compositions. The inner layer, for example, can be tougher, while the outer layer could be more stretchable. | 10-16-2008 |
20090094839 | Electronic Utility Knife with Safety Reaction System - A hand-operated electronic utility knife includes electronics that utilize sensors to detect an unsafe condition, and a reaction system that automatically protects the user or another from the exposed blade upon detection of an unsafe condition. Preferred sensors typically include contact detection sensors, electromagnetic field sensors, Hall Effect sensors, infrared sensors, and sensors that utilize lasers to detect an unsafe condition. Reaction systems can include any suitable electromechanical and/or mechanical system capable of retracting the blade to a protected and safe condition, or covering the blade with a sheath or other protective blade covering. | 04-16-2009 |
20090172889 | UTILITY TOOL HAVING INTERCHANGABLE TOOL CARTRIDGES - A tool system is presented. The tool system includes a tool body sized and dimensioned to fit comfortably in a human hand, and includes a plurality of interchangeable tool cartridges. Some of the tool cartridges include a tool bit cover capable of remaining in a closed, locked position sheathing a tool bit. Once installed, the tool bit cover can be unlocked via actuation of a trigger disposed on the body of the tool or on the cartridge. Preferably, the tool bit cover unsheathes the underlying tool bit due to pressure or force of a work surface. | 07-09-2009 |
20090255970 | TOOL HOLSTER WITH A TOOL BIT - A tool holder is presented. Preferred tool holders include a holster for securely holding a tool. A tool bit can be operationally coupled to the holster so that the holster-tool bit assembly forms a complete tool, where the holster can function as a handle of the tool bit. The tool bit can be of the same type, or of a different type than that of the held tool. Some embodiments include tool locks that securely hold the tool within the holster when the holster is used to operate the tool bit. | 10-15-2009 |
20090271988 | UTILITY KNIFE WITH COUNTER-RECIPROCATING BLADE AND GUARD - A utility knife has a counter-reciprocating blade and blade guard. Preferred utility knifes have an internal mechanism comprising several components that are advantageously coupled via one or more pivot points. Though an appropriate arrangement of pivot points, both stationary pivot points and translating pivot points, the blade and guard counter-reciprocate such that forced retraction of the guard results in forced extension of the blade. While the internal mechanism is in a locked position, the guard locked. Actuation of a trigger can unlock the internal mechanism, which releases the blade guard. Preferably a single actuation of the trigger provides for a single use of the knife. | 11-05-2009 |
20100018061 | Safety Cutting Apparatus - A cutting apparatus has a unidirectionally-locking blade cover that automatically snaps back over the exposed blade after each cut, and a dependent, index finger operated unlocking trigger. | 01-28-2010 |
20100236076 | SAFETY CUTTING APPARATUS - A cutting apparatus has a unidirectionally-locking blade cover that automatically snaps back over the exposed blade after each cut, and a dependent, index finger operated unlocking trigger. | 09-23-2010 |
20100293796 | SAFETY CUTTING BLADES AND KNIVES - Safety cutting blades and utility knives having such blades are presented. Safety cutting blades include safety features that protect users from contacting a cutting edge. Preferred blades comprise a stem and a cross bar that orthogonally intersects with the stem. One or more cutting edges can be disposed within a notch made into an edge of the blade. Safety features can include safety guards located at one or more ends of the cross bar where the safety guards cooperate with the stem of the blade to form the notches. The notches can be sized and dimensioned to reduce a risk of a body part from contacting a cutting edge. | 11-25-2010 |
20110252648 | Safety Cutting Apparatus - A cutting apparatus has a unidirectionally-locking blade cover that automatically snaps back over the exposed blade after each cut, and a dependent, index finger operated unlocking trigger. | 10-20-2011 |
20120317820 | Safety Locking Mechanism For A Utility Knife - A safety mechanism for a utility knife is provided to prevent more than one retraction of the blade shield for each trigger actuation. A separable linkage extends between an actuator and a strut, and has a seat member and a deflecting member that are linked together when the actuator is not depressed and the strut is in the safety position blocking the retraction of the shield. The separable linkage is configured to transmit the pressing action of the actuator to the strut to disengage it from the bracket. The separable linkage is configured to delink as the shield retracts. If the actuator continues to be pressed in after the shield returns from being retracted, the safety mechanism prevents relinking of the seat member and the deflecting member, due to the deflecting member being deflected away from the seat member in a substantially longitudinal direction. | 12-20-2012 |
20130333534 | Safety Knife Handle With Wire Blade - A safety knife preferably for cutting food items such as vegetables, bread and meat without lacerations includes a handle portion and an extension. The extension includes two terminal ends, located near the handle and away from the handle, respectively. A wire blade bearing cutting elements is drawn taut between the two terminal ends. The extension includes a bevel portion, the leading edge of which travels immediately behind the wire blade. The wire blade is held under enough tension to avoid deforming when drawn through food items in a back-and-forth motion, and the bevel helps to separate items being cut. This reduces drag on the wire blade when using the knife and keeps the user's hands and fingers away from the wire blade. | 12-19-2013 |
20130340262 | Bag Cutter and Piercer - A bag cutter for opening a sealed package using at least one of a blade and a piercer. Preferably, at least one blade is disposed partially within a cutout of an arm in a manner that exposes an edge of the blade. A piercer can comprise an extension of a cutout edge or be located on any other suitable portion of an arm. Another blade can be provided that is substantially perpendicular to the blade within a cutout, and juxtaposable against a cutting surface. | 12-26-2013 |
20130340263 | Cutter with Anvil - A cutting apparatus for opening a sealed package has a first arm partially enclosing a first blade that is at least partially juxtaposable against a second arm having a cutting surface. The two arms can be injection molded as a single piece of plastic or comprise two separate pieces coupled to a pivot. Preferably, the cutting surface comprises a raised portion at least partially enclosing a hard anvil. | 12-26-2013 |
20140013604 | Multi-Blade Bag Cutter - A multi-blade bag cutting apparatus for opening a sealed package using one of at least two methods has a first arm partially enclosing a first blade and a first or second arm having a cutout exposing a second blade. The two arms can be injection molded as a single piece of plastic or comprise two separate pieces coupled to a pivot. Preferably, the first blade is partially juxtaposable against a cutting surface, which can be, among other things, a raised portion and/or an anvil. | 01-16-2014 |
20150040406 | DRAW CUT UTILITY KNIFE - A draw cut utility knife includes an elongated handle and a head holding a blade. The handle defines a thin central portion surrounded by a flange extending around its perimeter, the central portion aligning with the blade. The head has a rounded edge from which the blade protrudes, and is formed around the blade in a manner permanently embedding it in the head. The central portion may have cut outs for reduced weight, and the head preferably includes a thickened portion for holding the blade adjacent a centrally located cut out which accommodates a user's finger. A second blade may be secured to another thickened portion of the head opposite the first blade, both blades permanently secured in the head with a rearward sharpened edge allowing the knife to be safely drawn toward a user and easily guided for a precision cut. | 02-12-2015 |