62 results about "Dumbwaiter" patented technology

An automated warehouse system row cart includes a lifter that uses cams to raise and lower pallets. Three symmetrical cam lobes are cut into a hollow cylinder. Three matching cam lifters ride these lobes and are attached to an elevator plate. A stepper motor running in one direction is used to raise and lower the elevator plate by virtue of the action between the cam lobes and lifters.

A device is provided for hoisting a module for mounting into an overhead space, such as the crown of an aircraft fuselage. The device includes a frame that supports the module, and a lifting device that lifts the first frame to properly place the module. The lifting device includes a frame, attachment devices that attach the frame of the lifting device to overhead support frames, and a driving device that moves the frame of the lifting device up the attachment devices. The frame of the lifting device receives the frame that supports the module as the frame of the lifting device is moved by the driving device.

The invention relates to an elevator car which is suitable for elevators in which all of the elements which are to be maintained and checked are arranged outside the elevator car, opposite only one side of the elevator car. The elevator car comprises, on said side, one part (3) that is arranged more than 85 cm above the elevator base (1) on the elevator wall (2) and that can be removed from inside the elevator. The part (3) is as least 95 cm in height and, after being removed, can rest vertically on the base of the elevator (1), against the elevator wall (2), in order to form a balustrade (4). At least one spacer (5,19) is arranged between the removable part (3) and the lower part (6) of the elevator wall (2) so that the distance from the inner side of the side wall part (3) that is placed on the base (1), facing the elevator, to the elements (7, 8) of the elevator drive moving past the travelling elevator car is at least 10 cm.

Containers for foodstuffs which are resealable and have an elevating lift therein. The lift is preferably operated by an operator that fits within the container to prevent loss of freshness of the foodstuff or other contents. One operator uses a slot or groove which winds at least partially around a tubular operator which is engaged by a follower that extends from the elevator lift. The follower may also engage with a feature on an inside wall of the container to prevent rotation of the lift and provide relative longitudinal motion between the lift platform upon which chips or other foodstuffs are supported so that the contents can be adjusted for easy access. A removable lid allows controlled opening and closing or resealing of the container to keep the foodstuff contents fresh when not being dispensed.

A half pallet for use with a pallet lift jack includes a deck that is snap-fit to a plurality of supports. A lateral projection extends inwardly from each of the supports. A vertical projection protrudes upwardly from an inner end of the lateral projection and is spaced from the support such that a portion of a frame of the pallet lift jack can be received between the vertical projection and the support to prevent outward deflection of the supports.

A system for supplying packaging cushions manufactured from cushion feedstock comprises a lift, a cushion-supply machine moveably supported by the lift, and a hopper. The elevation of the hopper entrance opening is higher than the elevation of the hopper exit opening. The lift is adapted to move the cushion-supply machine between a supply position, in which the elevation of the cushion outlet of the cushion-supply machine is higher than the elevation of the hopper entrance opening, and a reload position, in which the elevation of the cushion-supply machine cushion outlet is lower than the elevation of the hopper entrance opening.

An assembly for lifting a boat locatable adjacent a dock requires only two elongate vertically disposed pilings each having a lower end portion mounted into the floor of a body of water near the dock and an upper end portion extending upwardly adjacent the dock. A lift is connected to a boat cradle for moving the cradle substantially vertically and includes a piston / cylinder attached between the dock and cables, which are mounted to each piling and are connected between the piston and the cradle. The piston is movable between a first position for lifting and pulleys and guides are mounted to the pilings and the cradle.

A modular lift system that can be mounted on a stairway is disclosed. The system includes forks located on a first floor onto which the user rolls their wheelchair. The forks are motor operated to traverse a toothed track between the first floor and a second floor with the wheelchair and the user riding the forks. When the forks reach the second floor, the user rolls the wheelchair off the forks.

A wheelbarrow has an assisted lift dumping barrow that provides continuously biased forward tilting of the barrow relative to the frame of the wheelbarrow through two gas springs while maintaining the legs and wheel thereof on the ground. A first gas spring is connected to a right side handle of the frame of the wheelchair and to a right rear underside of the barrow. A second gas spring is connected to a left side handle of the frame of the wheelbarrow and to a left rear underside of the barrow. Each gas spring provides a continuous bias or pressure against the rear of the barrow for assisting in pivoting and lifting the rear of the barrow for dumping its contents. A latch keeps the barrow from raising until released. A separate rear barrow handle aids in overcoming bias of the gas springs for lowering the rear of the barrow.

A wheelchair lift for use in conjunction with a vehicle having a floor. The lift includes a power actuating system, a platform assembly having first and second platform sections, and a linking assembly connecting the power actuating system to the platform assembly. The linking assembly includes first and second vertical arms connected to the platform assembly. The platform assembly is movable between a fully extended configuration, a pre-stowed position and a stowed position. The first and second vertical arms are a first distance apart when the platform assembly is in the fully extended configuration and the pre-stowed position and a second distance apart when the platform assembly is in the stowed position. The second distance is less than the first distance.

A lifter is disclosed which allows for an improved operating envelope of the faceplate. The lifter utilizes a motor having 210 degrees of rotation and lifting arms of a unique geometry to rotate a faceplate from a retracted position below and substantially behind the lifter baseplate to a dumping position above and substantially behind a lower hopper edge for the purpose of dumping refuse carts into a refuse collection vehicle. This dumps refuse further into the vehicle hopper, which minimizes the number of packing cycles required on a collection route. A faceplate is attached to the motor using two lifting arms. The faceplate has a fixed upper hook and may be configured with a sliding, retractable lower hooking mechanism or a spring loaded, cam actuated rotating hook mechanism. The faceplate may include multiple sets of attachment points for attaching the lifting arms to facilitate the mounting of the lifter on a refuse collection vehicle over a range of heights without necessitating replacement of the lifting arms.

The invention relates to an elevator comprisinga hoistway;an elevator car vertically movable in the hoistway;a plurality of ropes connected to the car;a rotatable traction member comprising a circumferential traction surface area for each of the several ropes;each rope being arranged to pass around the rotatable traction member resting against a circumferential traction surface area of the traction member;drive machinery for controlling rotation of the rotatable traction member.The elevator comprises means for detecting displacement of each of the ropes over a first limit position of the rope in the first axial direction of the rotatable traction member, and over a second limit position of the rope in the second axial direction of the traction member; and in thatdisplacement of one or more of said ropes in axial direction of the rotatable traction member over the first or second limit position is arranged to trigger the drive machinery to stop the rotation of the rotatable traction member.

The invention comprises a modular lifter for a tarpaulin system, comprising: a) a plurality of tubes, each end of each tube being a hollow end, and the tubes operative to be assemblable into a lifter for a tarpaulin system; b) a plurality of hinges, each hinge having a body, opposed tube mounting ends extending longitudinally from the body and dimensioned to fit within the hollow ends of the tubes, and locking mount extending from the body substantially perpendicular to the mounting ends; and c) a locking mechanism, operative to couple two of said hinges together via respective locking mounts.

A dumbwaiter is provided. The dumbwaiter includes an elevator mechanically coupled to a left glide and a right glide. The left glide is immediately adjacent to and located between a pair of left guides, and the right glide is immediately adjacent to and located between a pair of right guides. A strap is used for raising and lowering the elevator. As the glides are bound between respective pairs of guides, the elevator is protected from vibration. Thus, the dumbwaiter of the present invention may be suitable for being used in a mobile setting, such as a motor home in transit, for example.

A pallet lift includes a pair of outer tines movable between an expanded position spaced outward away from inner tines and a retracted position adjacent the inner tines. The inner and outer tines are supported by wheels at locations spaced away from the lift mechanism. A pallet includes a plurality of nestable feet that open outwardly of the pallet to reduce the footprint. A second pallet includes a side wall extending downward from side edges of the pallet to define an opening adjacent outer feet.

A cargo lift for receipt by a receiver hitch according to one embodiment of the invention comprises a frame, a platform, a scissor lift mechanism, an actuator, a pair of pivot mechanisms, a pair of sliding guide members, a probe connector, and a cross bar. The scissor lift mechanism is positioned between the frame and the platform and is provided with the actuator. The pair of pivot mechanisms raises and lower the frame between ground level and receiver hitch level while maintaining the platform in a horizontal position. The pair of sliding guide members extends alongside the frame and attaches the frame to the pivot mechanisms. The probe connector is for a receiver hitch for carrying the cargo lift by a vehicle. The cross-bar is for attaching the pair of pivot mechanisms to the probe connector.

A modular lift system that can be mounted on a stairway is disclosed. The system includes forks located on a first floor onto which the user rolls their wheelchair. The forks are motor operated to traverse a toothed track between the first floor and a second floor with the wheelchair and the user riding the forks. When the forks reach the second floor, the user rolls the wheelchair off the forks.

A hitch mounted lift platform includes platform and lift base back-up sensors for detecting and alerting a vehicle occupant of a rear obstruction being approached to prevent collision and damage to the lift platform, items carried on the lift and the rear obstruction. The lift platform includes quick disconnect devices for connecting and disconnecting the associated wiring for easy attachment and detachment of the lift platform from the vehicle. The back-up sensors communicate with a visual display and / or speakers for visually and audibly alerting the vehicle occupant of any approaching rear obstructions. In operation, the visual display is activated when the vehicle is put in reverse. An audible alerting noise, such as beeping, is initiated by the back-up sensors detecting the vehicle is coming within a predetermined distance of an obstruction.

A watercraft lift with translating bunks supported by a base frame and having rollers mounted to the base frame to initially raises the watercraft upward when driven onto the lift sufficiently to be positioned above the bunks when in their lowered position and thereby permit operation of the lift in water too shallow for use of the bunks by themselves. The rollers are positioned relative to the translating bunks such that when the bunks are in their lowered position and the lift is used in sufficiently shallow water, the watercraft driven onto the lift initially engages the rollers, which lift the watercraft upward above the height when floating in the water and above the height of the bunks. The translating bunks are then used to lift the watercraft off of the rollers and upward to a raised position above the water.

A wheelchair lift for use in conjunction with a vehicle having a floor. The lift includes a power actuating system, a platform assembly having first and second platform sections, a linking assembly having first and second vertical arms connected to the platform assembly, and first and second fold-facilitating links connecting the first and second vertical arms respectively to the first and second platform sections. The linking assembly connects the power actuating system to the platform assembly. During a folding process, the first and second fold-facilitating links cause the first platform section to pivot with respect to the second platform section and the first vertical arm to move with respect to the second vertical arm.

The invention provides a lift for a vehicle, such as automobiles, vans and the like, comprising: a platform, a track connected to the undercarriage of a vehicle, a support member connecting the platform to the track, and an actuator operatively connected to the platform. The platform is adapted to move between a plurality of positions including a mounting position at about ground level, a plurality of vehicle access positions, including between the front and rear side doors, or between the driver's side and passenger's side doors, or between all the access points a vehicle. The platform can also be moved to a stowed position substantially underneath the vehicle.

A lifting mast, in particular for a high-bay stacker lift truck, having a fixed mast and at least one extendable mast section with two parallel lift drives arranged laterally on the mast for extending the mast section from the fixed mast and a control for the lift drives, wherein a regulating device is provided for the two lift drives for measuring a path difference in the lifting paths of the lift drives and the lift drives are controlled such that the path difference remains zero.

An elevator includes a first elevator unit vertically movable in a hoistway, and a second elevator unit vertically movable in a hoistway. At least one of said elevator units is an elevator car. One or more belt-shaped hoisting ropes interconnects the first elevator unit and the second elevator unit. A drive wheel is provided for moving said one or more belt-shaped hoisting ropes. Each of the belt-shaped hoisting ropes passes around the drive wheel and includes consecutively a first rope section extending between the drive wheel and the first elevator unit, and a second rope section extending between the drive wheel and the second elevator unit. The elevator further includes non-driven cambered diverting wheels, each said first rope section being arranged to pass around a first cambered diverting wheel, in particular resting against a cambered circumferential surface area thereof, and each the second rope section being arranged to pass around a second cambered diverting wheel, in particular resting against a cambered circumferential surface area thereof. A rope monitoring arrangement is configured to monitor displacement of each of the first rope sections in the axial direction of the wheels away from a predefined zone, and displacement of each of the second rope sections in the axial direction of the wheels away from a predefined zone. The elevator is configured to stop the rotation of the drive wheel when one or more of the first and second rope sections is displaced in the axial direction of the wheels away from a predefined zone.

The invention relates to a vehicle elevator, comprising: at least one carrier with a length direction for carrying a load thereon, such as a vehicle, and a lift under the carrier, which lift comprises at least two rotating components in a single line of assembly, wherein the rotating shaft extends along the line of assembly. The invention also relates to a lift for assembly in a vehicle elevator.

An vertical transportation elevator, escalator, dumbwaiter and lift systems monitoring, maintenance, repair, inspection, testing and modernization system and method is provided. The system and method may provide real-time information to a technician, buildings, property managers, facility managers, owners of building, building engineers, regarding the current state of the equipment, status of inspections, status of testing, repairs, modernization history of maintenance real time maintenance performed on equipment and characteristics of the equipment, and future requirements of the elevator.

The invention is directed to a boat lift of the type that is mounted on the pilings of a boat slip or dock having four pilings placed in a rectangular arrangement. The boat lift comprises in combination, a cradle upon which the hull of a boat is adapted to rest. A means for raising and lowering the cradle is provided and a cable connects the cradle to the means for raising and lowering the cradle. A drive unit is operatively associated with the means for raising and lowering the cradle and includes a motor having an output shaft adapted to drive the drive unit such that upon operation of the motor, the cradle is raised or lowered.

A sheet stacking and pallet loading system configured to stack sheets of material on a first pallet while holding a second pallet in a staging position above the first pallet. The system can include an elevator for supporting the first pallet in a loading position while the sheets are stacked on the first pallet. After a sufficient quantity of sheets has been stacked thereon, the elevator can lower the first pallet from its loading position. The second pallet can then be lowered from its staging position such that the sheets can be stacked thereon. The system can further include extendable pallet supports which can be extended to support the second pallet while the first pallet is being lowered by the elevator. The pallet loading system can further include a pallet-grasping assembly having, first, a frame movable along a track and, second, one or more end-effectors movable relative to the frame for engaging a pallet.