Abstract: An apparatus to recondition used ammunition cartridge cases in order that they can be reloaded and reused. A stand includes a base and an upright column. A plurality of bearing sleeves are located in the column disposed about parallel horizontal axes. A plurality of tool holders have shafts that are rotatably assembled in the column. The tool holders carry cartridge case reconditioning tools of the type that operate upon a cartridge case upon rotation with respect to it. The tool holder shafts are interconnected by circular gears. The rotation of one shaft results in rotation of the other shafts. A crank is connected to one of the shafts for rotation of all of the shafts. One of the cartridge case reconditioning tools is for deburring the inside mouth of the case, another is for deburring the outside mouth of the case, and a third is for cleaning the primer pocket.
Abstract: A sanitary material moving pump having a ram mounted for rreciprocal movement in a pumping chamber. An elongte tubular housing is connected at one end to the ram for purposes of reciprocal movement of the ram to move material through the pumping chamber. A piston shaft is mounted in stationary relationship relative to the pumping chamber in alignment with the design pumping axis of the pumping chamber. The end of the housing opposite the ram extends outward of the pumping chamber and is installed on the working end of the piston shaft. A piston is mounted on the inside end of the piston shaft. Hydraulic fluid lines communicate with opposite sides of the piston to reciprocate the housing on the piston shaft and the ram in the pumping chamber. Apparatus is provided for correctly adjusting the alignment of the hydraulic power unit to be as coincident as possible with the design pumping axis of the machine.
Abstract: An impeller assembly having a housing supporting a rotatable impeller. The housing has a bottom entrance opening and a top exit opening separated by a curved back wall. A liner of low friction and abrasive resistant plastic material covers the inside of the back wall. The liner is removeably mounted on the housing so that it can be replaced without taking the housing apart. The impeller has a plurality of pivoted paddle assemblies. Each paddle assembly has a generally U-shaped liner of low friction and abrasion resistant material. The impeller is adjustably mounted on the housing to provide a minimum of clearance between the liner and the outer ends of the paddle assemblies as they rotate within the housing.
Abstract: An ankle brace for constraining movement of the lower leg and foot about the normal horizontal axis of rotation of the ankle while inhibiting other rotation or extension or retraction movement about abnormal axes or in abnormal directions in order to help prevent injury to the ankle joint. The device includes a U-shaped leg member positionable in straddling relationship to the ankle joint and fixable to the lower leg. An ankle member is connected by a sliding pivot to the U-shaped leg member and is engaged with respect to the foot to hold the foot and lower leg together for movement about an arcuate path described by the sliding pivot joint.
Abstract: A vacuum grain moving apparatus connected to a three-point hitch of a tractor and operated with the power take-off drive of the tractor. The apparatus has a grain holding tank connected to a grain collection hose used to carry grain and air to the tank. An air moving unit mounted on the tank has a rotatable power driven impeller that draws air from the center of the chamber of the tank to provide a vacuum pressure within the tank. The impeller has first and second generally radial blades that pump the air from the tank chamber. An auger conveyor operatively associated with the lower end of the tank moves the grain from the tank into a transport vehicle. The auger conveyor has a driven helical auger located within a tube. The tube extends beyond the outer end of the auger and retains a plug of grain in the tube to inhibit back flow of air into tank chamber during the running of the air moving unit. A swinging gate pivotally mounted on an outer end cap normally closes the exit opening of the tube.
Abstract: A device operable to electrically stimulate living tissue, including body organs, muscles and nerves. The device can be applied to the surface of the body or implanted in the body. The device has an electrical circuit containing a pulse width control for variation of the stimulus intensity, pulse repetition rate, and on-time of the pulse to vary the pulse width. A variation in pulse width causes the stimulus variation of the stimulus intensity in a prescribed mathematical manner so as to approximately follow the curves of the strength-duration pulse stimulus amplitude versus pulse width. This provides for an optimal selection among the various classes of stimulated nerve fibers within a nerve tract or bundle. A precise adjustment of stimulation can be achieved so as to optimize sensation of pain relief.
Abstract: A top unloading silo unloader pendantly supported in a tower silo. The unloader has a material collector moved around the silo with drive structure. An impeller receives material from the collector and throws the material into an out chute which directs the material to a doorway leading to an upright passageway. The drive structure mounted on the outer end of the collector has leading and trailing drive wheels connected with movable mounts to a leveling apparatus. Power is applied to both wheels by separate drive shafts connected to the power transmission for the augers of the collector. The leveling apparatus has a base secured to the collector. Supports pivotally mounted on opposite ends of the base are attached to the mounts for the wheels. A linear actuator connected to the supports operates to concurrently pivot the supports in opposite directions so that the outer end of the collector can be raised or lowered and held in a selected position.
Type:
Grant
Filed:
April 30, 1979
Date of Patent:
May 11, 1982
Assignee:
Veda, Inc.
Inventors:
Floyd E. Buschbom, Glen D. Hansen, Jerome T. Paulson, Clifton W. Anderson
Abstract: A portable display unit for display of advertising material or other informational or decorative material on changeable display cards and for storage of other display cards. The display unit includes a rectangular box-like housing convertible between a collapsed or closed and portable configuration and an erect or a display configuration supported on a stand. At least one wall of the housing is comprised as a removable panel to expose a picture type frame surrounding a viewing area to be filled by the display card to be viewed. A retractable handle is provided for transport of the unit from place to place in the collapsed or closed configuration.
Abstract: The method and apparatus for controlling particulate emissions from a combustion apparatus, as a diesel engine. Diesel engine exhaust particles are electrically charged during the formation of the particles in the engine combustion chamber. A particle collector is used to collect the electrically charged particles on collecting structures connected to a high voltage power supply and ground. The collecting structures of the particle collector can be a plurality of parallel metal plates, spaced cylindrical rods, or concentrically located cylindrical members. A fibrous matrix can be located adjacent the particle collecting structure to collect the charged particles as they move through the matrix. In one embodiment, the collected particles separate from the collecting structures and return to the engine intake. In another embodiment, a removable collecting cartridge has electrically conductive plates for collecting the charged particles. The entire cartridge is removed for cleaning or replacement.
Type:
Grant
Filed:
August 22, 1979
Date of Patent:
February 23, 1982
Assignee:
The Regents of the University of Minn.
Inventors:
Benjamin Y. H. Liu, David B. Kittelson, Daniel F. Dolan, David Y. H. Pui