Abstract: A sewage ejector system includes a basin and top cover. The basin body includes a generally cylindrical wall, a closed bottom, and an open top. Several features assist in installation, handling and/or performance of the basin. An annular collar projecting from the outer surface of the wall is useful for inhibiting flotation of the basin. Diametrically opposed recesses formed in the outer wall surface facilitate handling of the basin during transport and installation. A raised annular edge at the top of the basin body protects outer edges of the top cover.

Abstract: A closure system includes a plurality of closure panels adapted to be moved between deployed and stowed positions. All on a pair of carrier tracks on opposite side of a building opening. The actuator in the deployed position have abutting top and bottom edges and parallel side surface that span across the building opening. The actuators in the stowed position have abutting in inner and outer side surfaces in parallel top edges and parallel bottom edges. The top and bottom edges maintain their top and bottom orientation as their closure panels transition between the deployed an stowed positions.

Abstract: A pump assembly having a hermetically sealed switch cavity for retaining a magnetically actuated mechanical switch. The assembly includes a housing having a motor cavity and an integral guide for cooperating with an external float assembly. A housing cover includes electrically conductive pins extending therethrough and is connected to the housing to substantially seal the motor cavity. A switch cover cooperatively engages a portion of the housing cover to form the hermetically sealed switch cavity. The switch cavity also encloses at least one conductive pin in the housing cover.

Abstract: A drive system for the internal combustion engine of a large work vehicle, such as a self-propelled agricultural combine. The drive system comprising three concentric drive shafts that are housed in a housing for driving three separate usage assemblies. The outer and middle drive shafts are provided with bevel gear assemblies having output axes perpendicular to the drive shafts axis. The bevel gear assembly of the outer drive shaft is coupled to a series of four sequentially mounted hydraulic pumps, whereas the bevel gear assembly of the middle drive shaft is coupled to a forwardly extending drive shaft. An internal clutch is provided for operatively engaging and disengaging the middle drive shaft from the drive train.

Abstract: A rechargeable emergency portable battery charger for starter motor storage batteries. The device includes a sealed lead acid battery as a source of energy. An oscillator circuit connected to a transformer generates 3 V in its secondary. This voltage is rectified and added in series to the 12 V of the self-contained battery to provide charging current to a starter motor storage battery. Connection is made via a cigarette lighter socket in the disabled vehicle. Current is limited to approximately 4 amps so as to limit heat dissipation to a safe level. Furthermore, a voltage-sensing circuit determines if the voltage of the starter storage battery is below approximately 6 V or is shorted to ground. In either case, output current is further limited to the point of cut-off. Recharging the self-contained battery is made possible by a switch that connects the cigarette lighter of a running car directly to the self-contained battery of the charger.

Abstract: A drive system for the internal combustion engine of a large work vehicle, such as a self-propelled agricultural combine. The drive system comprising three concentric drive shafts that are housed in a housing for driving three separate usage assemblies. The outer and middle drive shafts are provided with bevel gear assemblies having output axes perpendicular to the drive shafts axis. The bevel gear assembly of the outer drive shaft is coupled to a series of four sequentially mounted hydraulic pumps, whereas the bevel gear assembly of the middle drive shaft is coupled to a forwardly extending drive shaft. An internal clutch is provided for operatively engaging and disengaging the middle drive shaft from the drive train.

Abstract: A trailer hitch guide constructed in accordance with the present invention mounts a base upon the vehicle hitch and a pair of detachably, mountable, lateral guides are attachable to the base for projecting rearwardly therefrom. A first cam surface is provided which is connectable to said base and a second cam surface is connectable to the trailer tongue. The first and second cam surfaces are formed to cooperate to cause relative vertical displacement between the vehicle hitch and the trailer tongue as the vehicle hitch approaches the trailer tongue. The trailer tongue is aligned in a horizontal plane and raised in a vertical plane during the approach until the socket on the trailer tongue is positioned over the ball hitch. The trailer tongue is then dropped upon the ball hitch engaging the socket over the ball. The lateral guides and cam surfaces are removable as necessary to facilitate freedom of angular movement between the trailer hitch and the trailer tongue.

Abstract: A roof or ceiling structure for buildings in the nature of a "space frame" or three-dimensional truss, including substantially planar panels and supporting struts and a method for producing the structure on-site. The panels serve a dual purpose as structural members interconnecting the struts and as surface elements for a roof or ceiling. Two panels spaced parallel to one another are interconnected by equiangular struts to form an array of tetrahedrons throughout the three-dimensional structural member. Each panel is made up from sheet material, and the seams between panels are accommodated by rotating each layer of panels relative to those adjacent to it so that the seams overlap abutting sheet surfaces in differing angular attitudes.

Abstract: A suspension system for a motor vehicle having a rigid axle supporting the vehicle on coil springs located at either end thereof. Trailing radius arms prevent forward and aft movement of either end of the axle relative to the vehicle and symetrically mounted track bars constrain the axle to move vertically without significant lateral motion. The track bars of the present system operate together to reduce the arcuate movement induced by single track bars in conventional rigid axle suspension systems. Flexible axle mounting brackets enhance the effect of these various rigid links.