A pump utilizing basically the same pumping elements as currently in use in a slipper-type pump having a rotor rotatable in a cam ring providing a double-lobed working chamber and wherein the rotor carries a plurality of slipper-type pumping elements which are free to move radially and to rock angularly in following the adjoining wall of the bore contour is modified by providing the cam ring and the adjoining pressure plate with two sets of multiple passages, for example, sets of six, and adding...

An attachment for the discharge end of the conventional delivery chute of a concrete mixer truck, affording a flexible tube extension thereof for directing concrete accurately and without appreciable spatter to desired locations about a substantial radius of action.

A downstacker mechanism for storing and delivering pallets one by one to a conveyor for transport thereby to a palletizer machine operative to assemble for packaging empty containers of the type commonly known as cans or tin cans. The mechanism includes a vertically oriented storage magazine in which pallets are retained in stacked juxtaposition one above another. Associated with the storage magazine are a plurality of pallet-support and delivery devices mounted for rotational movement about hor...

A drug-delivery device for prolongedly delivering drugs to patients according to any predetermined time release profile, e.g., increasing, decreasing, constant, pulsing, sinusoidal, and like patterns of release, is fabricated by applying a drug coating of varying or uniform thickness to a relatively drug-impermeable film soluble in body fluids and thence rolling said coated film about itself in spiral or "jellyroll" fashion. Upon administration to the body, the outermost extremities of the film ...

The invention provides a simple device for quickly deliverying an equal predetermined volume of a liquid simultaneously into each of a plurality of identical containers. The device is particularly adapted for use in schools, hospitals, cafeterias and the like, particularly when numerous servings are required during a relatively short period of time. Use of the invention obviates the tedious and time-consuming manual operations required to fill paper cups and similar containers one at a time, and...

A delivery system for hot asphalt includes a plurality of semi-trailers. Each trailer includes a V-shaped hopper having an asphalt supporting beam extending longitudinally through it. A tube extends around the hopper for use in spraying lubricating oil into the hopper prior to the loading of asphalt. Each trailer further includes a conveyor for unloading asphalt from the hopper into a paving machine. The conveyor is driven by a hydraulic motor that is controlled by a valve. The valve is mounted ...

An ophthalmic corneal drug delivery method using a flexable hydrophilic dressing to supply beneficial medications to the corneal area.

A thread delivery and, if necessary, storage device, preferably for textile machines and particularly for elastic threads to be used therewith. A coil member is provided to which a thread is continuously fed, moved axially, and then continuously removed tangentially. Rollers are arranged around the shaft of the coil member, each of said rollers being rotatable around its own axis and one thereof being driven. The axis of one of the rollers is pivotally mounted and normally slightly tilted, relat...

Mail delivery signal device having on a bottom-hinged lid on a mailbox a casing with a bottom slot and a ledge near the top, and a signal plate having at the top a rearward flange and opposite side ears, and being slidable in the casing and projecting through the bottom slot, with the plate being in non-signalling position resting with its top flange on the ledge in closed vertical lid position and, on opening the lid, sliding off the ledge and gravitating to signalling position, and there being...

Means for quickly delivering predetermined quantities of semiliquid or flowable materials into a large number of similar containers. Particularly advantageous for use in schools, hospitals, cafeterias and the like, especially when numerous meals are to be served in a short time. May be employed in the packing industry as well. Serves to obviate the tedious and time-consuming manual operations of filling conventional paper cups and similar containers one at a time.