41results about How to "Effective weight reduction" patented technology

An electronic control, for automated earth drilling using a pneumatic hammer-operated bit, preliminarily weighs a drill string, and, during drilling, automatically maintains a desired weight on the bit, and also maintains a constant rate of drilling progress by regulating drill string rotation speed. The weight on the bit is automatically maintained at a fraction of the pre-established desired weight as the air pressure in the supply to the pneumatic hammer builds up to an operating level. The control detects voids and broken formations by monitoring air pressure and torque respectively, and responds by reducing the weight on the bit. The control automatically raises the drill bit though a short distance as the drill head reaches the lower limit of its travel, pauses until the air pressure drops, and then raises the drill string to a position for insertion of a new length of pipe.

A lift assembly having a drum rotatably mounted to a frame and linearly translatable with respect to the frame. A plurality of head blocks are connected to the frame along a helical mounting path, wherein linear translation of the drum during takeoff or take-up maintains a predetermined fleet angle between a take off point from the drum and the head block.

A lift assembly having a drum rotatably mounted to a frame and linearly translatable with respect to the frame. A plurality of head blocks are connected to the frame along a helical mounting path, wherein linear translation of the drum during takeoff or take-up maintains a predetermined fleet angle between a take off point from the drum and the head block.

A method and apparatus for influencing movement of a handle of a floor treatment device, such as a vacuum. The floor treatment device may include a handle portion that is attached to a base, which includes a floor treatment portion. The handle portion may be pivotally movable about a rotation axis relative to the base between at least first and second positions, where the rotation axis lies in a vertical plane that includes a longitudinal axis of the handle when the handle portion is in the first position and the longitudinal axis is a non-vertical position. A pivot assist device may apply a bias to the handle portion that urges the handle portion to move from the second position to the first position, e.g., to help support the weight of the handle when a user steers the floor treatment device across a floor.

A lift assembly having a drum rotatably mounted to a frame and linearly translatable with respect to the frame. A plurality of head blocks are connected to the frame along a helical mounting path, wherein linear translation of the drum during takeoff or take-up maintains a predetermined fleet angle between a take off point from the drum and the head block.

Disclosed herein are various embodiments of an exercise apparatus. In certain embodiments, an exercise apparatus comprises an exercise station coupled to a resistance system, the exercise station comprising a frame, an arm assembly, and a seat assembly comprising a seat, the seat having a first position and a second position and configured to move between the first and second positions, wherein the first position accommodates use of the exercise apparatus by a user sitting on the seat and wherein the second position accommodates use of the exercise apparatus by a user sitting in a wheelchair. In some embodiments, the seat assembly may comprise a biasing element which allows users to move the seat from the first position to the second position without needing to lift the seat.

A bulk vending machine provides a dispensing conduit having a revolving mouth that floats on top of a heap of articles in the product bin. The mouth is movable between a horizontal orientation, in which the mouth can scoop articles off of the surface of the heap, and a vertical orientation in which a throat of the dispensing conduit opens to allow an article which has been scooped into the mouth to fall through the dispensing chute. Revolution of the dispensing conduit by turning the handle causes the mouth to revolve around the heap of articles, scooping up one or more articles in its path.

A supporting and orienting apparatus that is angularly agile and can balance the weight of tools, and permits quick tool replacement is disclosed. An inner gimbal portion holds the tool at its center of balance and is rotationally disposed within an outer gimbal portion. The gimbal portion combination is rotationally attached to an articulated arm. The tool with one or both gimbal portions attached can be removed and replaced with another tool, also having gimbal portions attached such that the tool is automatically balanced when inserted into the support apparatus.

The efficiency of compressed air vehicle is enhanced by adapting the compressed air storage tank with a Magnus rotor that creates lift so as to reduce the effective weight of the tank during operation. A compressed air tank has an outlet in fluid communication with the inlet of a compressed air motor. Air leaving the compressed air motor is caused to flow across the Magnus rotor whereby lift is generated to counter gravitational force thereby reducing the effective weight of the system. A battery powered electric fan has an inlet disposed to draw air across the Magnus rotor thereby increasing the velocity of the air so as to maximize the Magnus effect. A thermoelectric cooler transfers heat across the compressed air motor, i.e. from air exiting the compressed air motor outlet, to the air entering the compressed air motor inlet, whereby the temperature of the air entering the compressed air motor is increased resulting in increased pressure. Conversely, transferring heat from the air exiting the compressed air motor and prior to flowing across the Magnus rotor, increases the density of the air flowing across the Magnus rotor so as to maximize the efficiency of the Magnus effect. Finally, the fan has an output in fluid communication with the input of a compressor, which re-compresses the air and delivers the re-compressed air to the storage tank.

A sheet feeder assembly (1) includes a bottom-feed sheet feeder (3) and a delivery table (5) positioned to receive sheets from the sheet feeder and deliver the sheets one at a time to a top-feed mechanism (205) designed to feed the top sheet of a stack of sheets in a manual feed tray of a printer (7) or the like. The top-feed mechanism includes a lifting support (204) for a stack of sheets. An exit end of the delivery table rests on and moves with the lifting support and delivers sheets one at a time to the top-feed mechanism. A balance mechanism (75) reduces the effective weight of the delivery table.

The present invention relates to a shot applicator device and, more particularly, to an automatic shot applicator device including a housing with a shot storage / delivery chamber, a tip structured to deliver the shot into tubing attached to various fishing tackle / equipment including fishing rigs, line, hooks, leaders, fly fishing tippet, and / or inserting directly into lures and baits, thereby changing the density (add or decrease weight) of the fishing tackle / equipment, and a mechanism structured to apply a force to the shot thrusting it through the tip and into such material.

A lift assembly having a drum rotatably mounted to a frame and linearly translatable with respect to one or more portions of the frame. A plurality of head blocks can be connected to the frame along a helical mounting path, wherein linear translation of the drum during takeoff or take-up can maintain a predetermined fleet angle between a take off point from the drum and the head block.

A snow plow lifting device is operatively connected to a snow plow for selectively imparting a lifting force on the snow plow. This lifting force reduces the effective weight of the snow plow bearing on an underlying surface such as a roadway. Thus, during a snow plowing operation, this reduces the wear on a lower edge of a blade that forms a part of the snow plow.

The efficiency of compressed air vehicle is enhanced by adapting the compressed air storage tank with a Magnus rotor that creates lift so as to reduce the effective weight of the tank during operation. A compressed air tank has an outlet in fluid communication with the inlet of a compressed air motor. Air leaving the compressed air motor is caused to flow across the Magnus rotor whereby lift is generated to counter gravitational force thereby reducing the effective weight of the system. A battery powered electric fan has an inlet disposed to draw air across the Magnus rotor thereby increasing the velocity of the air so as to maximize the Magnus effect. A thermoelectric cooler transfers heat across the compressed air motor, i.e. from air exiting the compressed air motor outlet, to the air entering the compressed air motor inlet, whereby the temperature of the air entering the compressed air motor is increased resulting in increased pressure. Conversely, transferring heat from the air exiting the compressed air motor and prior to flowing across the Magnus rotor, increases the density of the air flowing across the Magnus rotor so as to maximize the efficiency of the Magnus effect. Finally, the fan has an output in fluid communication with the input of a compressor, which re-compresses the air and delivers the re-compressed air to the storage tank.