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

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.

An exemplary exercise device descending from an elevated support (e.g., a bar or door frame) allows a user to insert a body part in a loop (e.g., a foot for pull-ups or a waist for push-ups) descending from an elastic resistance unit, which uses a variable number of stretchable elastic members between top and bottom connectors to reduce the effective weight the user has to pull/push up. Each of the resistance unit top and bottom connectors has several elastic member sockets, each socket having a socket passage extending through the connector. Each elastic member has an elongated portion between two member plugs sized to resist passing through the elastic member socket passages. Elastic members can be removably and replaceably installed by inserting a portion of each member plug within an elastic member socket, one member plug in each of the resistance unit top and bottom connectors.

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 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.

A rubber composition for vulcanization molding which can be manufactured into a rubber product with good dimensional stability, good appearance and sufficiently light weight, a process for manufacturing the same, and applications thereof. A rubber composition for vulcanization molding containing hollow particles and a base rubber, wherein the hollow particles are composed of a thermoplastic resin shell and a thermally vaporizable blowing agent encapsulated therein and have a specified further expansion ratio, and the base rubber has a Mooney viscosity ML (1+4) ranging from 5 to 90 at 100° C. Also disclosed is a process for manufacturing the rubber composition, hollow particles used for manufacturing the rubber composition, a masterbatch including the hollow particles and a rubber product manufactured from the rubber composition.

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.

In a sailing catamaran provided with a forwardly directed pivoted arm carrying at the free end a third pontoon into alignment in front of either of the catamaran hulls a triangular truss assembly is provided bridging across the hulls. The apex of the truss assembly is then engaged to a point along the length of a mast which has its foot or base resting on the arm. A forestay stretched between the mast and the end of the arm supports a headsail while a mainsail is mounted on the mast.

A boatlift buoyancy system for assisting in maneuvering a boatlift while in the water by adding buoyancy to the boatlift. The boatlift buoyancy system includes a first tube and a second tube attachable to the horizontal support beams of a boatlift that are capable of receiving of volume of air and/or water. A first hose and a second hose are fluidly connected to the first tube and second tube respectively for delivering pressurized air when buoyancy is desired for the boatlift. The first tube and the second tube also have a first aperture and a second aperture respectively within lower portions thereof for allowing for the draining of water when pressurized air is input into the tubes.

A seat (10, 20, 30, 70, 80, 90, 110) of a manual or powered ride on vehicle, the seat including at least one resilient elastomeric web seat portion (4, 24, 34, 78, 94, 114) suspended in tension between first (5, 25, 79a,119) and second (6, 26, 78, 79b, 87,118) supports, the suspended web(s) supporting a rider when sat on by the rider with the elastomeric web(s) resiliently stretching with increasing reactive tension under rider weight to react rider weight and give elastomeric tension seat support to the rider.

An apparatus for nursing immobile patients in bed includes a base, a sheet and a control unit. Both the base and sheet components include magnetic elements. The sheet is placed on top of the base, and the patient is lying on top of the sheet. When activated, the magnetic elements in the sheet and base repel each other. The resultant magnetic force opposes the weight of a patient by that, elevate the patient. Under these conditions, the net force (Normal force) is reduced, leading to reduced friction force between the base and sheet components. Moreover, the magnetic elements produce a force perpendicular to the static magnetic field which creates a torque that may contribute to the rotation of the sheet component. This in turn leads to a reduction in the workload needed to change a patient's position.

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.

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 is pivotably coupled to the frame. In some embodiments, the seat assembly may comprise a stop. 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. In various embodiments, the seat assembly comprises a seat height adjustment mechanism. In some embodiments, the exercise station comprises an adjustable arm assembly.

A self-balancing transportation device is disclosed. The device comprises: a chassis; a drive arrangement adapted to move the transportation device; a balance control system adapted to maintain fore-aft balance of the transportation device; at least one support platform for supporting a load for transportation; and a coupling arrangement configured to couple the at least one support platform to the chassis. The coupling arrangement is adapted to allow the at least one support platform to move relative to the chassis in response to horizontal acceleration or deceleration of the transportation device.

A tailgate lifting assembly. The assembly comprises two components housed in separate enclosures. A first component includes a pair of vertically arranged pulleys and is secured proximate a top edge of the tailgate. A second component is laterally disposed adjacent a side edge of the vehicle, which in the case of a trailer or pickup is a sidewall of the bed. A cable is threaded over the pulleys, which are secured in journaled relation to an interior wall of the housing for the first component. The second component has an interior void through which the cable is threaded, the cable being secured to a spring loaded attachment, the opposing sd secured to the top edge of the tailgate. The two enclosures may be removably mounted to allow for easy transfer to another vehicle.

The invention is a method and apparatus, automatic down hole blow out preventer wherein external elastomer rings are placed on the exterior of a grooved section of drill pipe. Below the external elastomer rings is an external pressure deflector ring, which is designed to be lifted up in a kick. When a kick occurs, the increased pressure will force the external pressure deflector ring up, causing the external elastomer rings to flip up and out as to inhibit or block the further flow of fluid up the annulus.