Abstract: An hydraulic pressure control system in the hydrostatic system of a split torque transmission uses a shunt circuit to redirect hydraulic fluid in a loop between a first pump and a second pump or motor. The shunt is opened by restricting a variable area or valve in the primary loop and opening a variable area or valve in the shunt. Adjusting the openings of the valves prevents overloading of the engine, lugging under instantaneous loads and overspeed due to backloading.
Abstract: A method to prevent overspeed of an internal combustion and attached ancillary devices in a mechanized vehicle includes one or more procedures to prevent improper gear selection to disengage the lockup function of a torque converter, to initiate engine braking and to destroke variable displacement hydraulic pumps. Requested gear selection in downshift is allowed only after interrogation of brake pressure, ground speed, shift selection requested and torque converter output speed. The torque converter lock-up solenoid is activated or deactivated in response to torque converter output speed which is compared to selected values to engage or disengage. Engine braking using a compression release braking system response to engine RPM in manual or automatic mode to prevent overspeed. Variable displacement pumps are destroked in response to engine RPM by adjusting swashplate control.
The systems may be operated independently or under the control of a common electronic module.
December 20, 2000
Date of Patent:
March 25, 2003
Jeffrey L. Degroot, H. Paul Dietz, Susan J. Gaugush, Thomas G. Skinner
Abstract: A tree harvester head structure is connected to a mounting structure on a mobile tree harvester by a compact coupling which provides lateral pivotal movement of the harvester head structure. An antifriction bearing and a fluid powered rotary actuator have a concentric relationship and are in substantial radial alignment, thus creating a compact design and avoiding additional side loading of the bearing. A brake prevents rotational movement of the tree harvester head structure except when the rotary actuator is operated.
Abstract: The essence of the method resides in that an optical signalling is carried out to display the remainder on time of three green or red lights which are suspended over a roadway in a single horizontal row on both sides of the orange light. Then two lights of the effective color are alternately switched off at a preset time interval, beginning with the light most removed from the orange lamp, this being done from a preset instant of time till switching on the orange light, while the third light of the effective color remaining switched on for some period of time. Next two switched off lights are switched on again, and the lights are flashing for the remaining period of time in the following sequence: first all the three lights are flashing in synchronism, then two lights and one light, respectively, flash at regular time intervals, after which the orange light goes on.
Abstract: A log hauler having a wheeled tractor and one or more wheeled log trailers with support wheels which are individually steerable to permit the log hauler to travel in a serpentine manner through a tree harvesting area. The support wheels are vertically adjustable to provide stability as the log hauler traverses uneven ground.
Abstract: A screen door made of foamed, closed-cell, solid-core polyvinyl chloride includes two rails and two stiles connected together to form a rectangular frame having an opening. A groove is milled into the frame around the opening. The screen that is to cover the opening is fastened to the frame by pressing it with a spline into the groove. The rails and stiles are connected using dowels in addition to adhesives, or, alternatively, using screws and traditional mortise and tenon joints. Holes are drilled into the stiles and then screws are driven into the rails from within the holes. The holes are then filled with foamed plastic plugs over the screws. The screen door can be cut and trimmed at the job site to fit it to the particular door frame, removing up to about an inch from each edge.
Abstract: The invention relates to a multicylinder internal combustion engine with two inlet valves and two outlet valves (12, 11), the outlet valves (11) being located on one side of an internal combustion engine and the inlet valves (12) being located on the other side. The outlet valves (11) and the inlet valves (12) are actuated by a camshaft via inlet rocker arms (4) and outlet rocker arms (5). In order to reduce the size of the cylinder heads (1) and the rocker housing (2), the inlet rocker arm (4) and the outlet rocker arm (5) are forked. Each forked rocker arm (4,5) actuates two similar valves (12,11) per cylinder (13). The axes (4a, 5a) of the inlet rocker arms (4) or outlet rocker arms (5) are staggered in relation to each other or preferably overlap.
Abstract: An athletic wrist support for teaching proper throwing techniques includes an inner body member, preferably made from a soft, flexible material such as Neoprene, which has hook and loop fastening straps to secure the wrist support to the arm. A substantially rigid plate member is attached on an outer portion of the inner body member in such a way that it fits on the upper forearm of a wearer and extends from just below the knuckles on the back of the hand down below the wrist, to prevent pronation motion of the wrist. In a preferred embodiment, the plate member is made from a strong, lightweight plastic, which is substantially rigid, but which will bend under extreme pressure. An outer body member, also preferably made from Neoprene, is attached to an upper portion of the plate member. The outer body member also has hook and loop fasteners that are used to secure the outer body member about the plate member and the inner body member.
Abstract: A system and method is described for importing data from a source computer system, manipulating and transforming of that data, and exporting the data to a target computer system under control of a script processor using stored metadata definitions. Metadata is used to describe the properties of the data being manipulated. The system includes a means for manipulating the metadata definitions. The metadata definitions are created to import data into the system, export data from the system, create views of the external data, store generic format data within the system, manipulate generic format data within the system and to control data flow through the system. Data is imported into the system using an import data definition to map the external data into an import data bag. Data imported into an import data bag becomes independent of the original data source. Data is manipulated within the system using script control commands and data is transformed within the system using rule sets that act upon data bags.
Abstract: A pulse radar system includes a frequency-agile magnetron comprising an input for giving a feeding voltage of a magnetron tuner. A modulator connected to said magnetron forms pulses of a feeding voltage for the magnetron. A low power signal source also connected to said magnetron generates microwave frequency signals which are given to the magnetron in pauses between pulses. These signals have the frequencies differing from the frequencies of the signals generated by the magnetron and fixed during each period of magnetron pulse repetition. This radar system also includes a signal converter receiving the low power signals reflected by the magnetron. These signals are converted into the signals connected in time to the moments, when the frequencies of the low power source and the frequencies of the magnetron oscillating system coincide with each other. Further, said signals are used for triggering the modulator connected to said converter.
Abstract: A speedloader for a shotgun having a tubular magazine includes an integral pulley system to minimize handle travel in delivering a plurality of cartridges into the magazine. The speedloader comprises a frame with a channel therethrough dimensioned to receive a plurality of cartridges. The frame carries a handle on an exterior longitudinal track and, inside, a pusher that travels from the first end of the frame to the second end of the frame in response to movement of the handle, thereby expelling the cartridges from the speedloader and injecting them into the magazine. The pulley system translates movement of the handle to movement of the pusher and reduces the distance the handle needs to be moved to move the pusher the full distance to reload the shotgun.
April 26, 1999
Date of Patent:
February 13, 2001
FN Manufacturing Co Inc
Gary A Sniezak, Milton W Erickson, Zdenek Prisovsky
Abstract: High energy flux infrared heaters are used to treat an object having a surface section and a base section such that a desired characteristic of the surface section is physically, chemically, or phasically changed while the base section remains unchanged.
March 15, 1999
Date of Patent:
January 16, 2001
Lockheed Martin Energy Research Corp.
Vinod K. Sikka, Craig A. Blue, Evan Keith Ohriner
Abstract: An improved multi-element apparatus for detecting the presence of at least one chemical, biological or physical component in a monitored area comprising an array or single set of the following elements: a capacitive transducer having at least one cantilever spring element secured thereto, the cantilever element having an area thereof coated with a chemical having an affinity for the component to be detected; a pick-up plate positioned adjacent to the cantilever element at a distance such that a capacitance between the cantilever element and the pick-up plate changes as the distance between the cantilever element and the pick-up plate varies, the change in capacitance being a measurable variation; a detection means for measuring the measurable variation in the capacitance between the cantilever element and the pick-up plate that forms a measurement channel signal; and at least one feedback cantilever spring element positioned apart from the coated cantilever element, the cantilever element substantially unaffe
August 31, 1998
Date of Patent:
January 2, 2001
Lockheed Martin Energy Research Corporation, University of Tennessee Research Corporation
Charles L. Britton, Jr., Robert J. Warmack, William L. Bryan, Robert L. Jones, Patrick Ian Oden, Thomas Thundat
Abstract: A deer attractant comprising an air-permeable container holding hair taken from the tarsal gland region of a deer. Instead of using deer tissue or urine that may spoil relatively quickly, only the hair from the tarsal gland region are collected. The collected hair is placed in an air-permeable container. In use, the container is preferably hung on a tree or other elevated structure to maximize the emanation of the odor to attract deer or from a slowly moving vehicle to create a scent trail.
Abstract: An apparatus for feeding articles, comprising: a surface; a plurality of conveyor belts spanning the surface; a motor driving the conveyor belts for transporting the articles along the surface; a barrier bar positioned above the surface for preventing further transport of the articles along the surface; and an actuator connected to at least one of the conveyor belts. The actuator raises at least a first portion of the conveyor belt a distance above the surface and lowers the conveyor belt back to the surface. Raising the actuator propels one of the articles past the block. The article feeding apparatus can be one component of a larger article handling system.
Abstract: A light socket is disclosed that has a built-in integrated circuit for rectifying the alternating current received from an electrical outlet and limiting the direct current produced. The light socket is specifically suited for low-current, low-voltage applications such as supplying DC to a string of ornamental lights. The integrated circuit has a diode with a modified cathode that acts as a fuse as it is rectifying the alternating current. The cathode is formed of a plurality of electrically parallel conductors. Excessive current blows out at least some of these conductors in the same way a conventional fuse blows. Various embodiments add other current-limiting elements, elements for producing full wave or near will wave rectification, and for opening the circuit when they detect extraneous currents.
Abstract: The invention relates to a multicylinder four-stroke internal combustion engine having a cylinder head (1) with an intake and an outlet port arrangement for two admission valves (15, 16, 17, 18) and two exhaust valves (26, 27) per cylinder. The admission valves (15, 16, 17, 18) are fitted on opposite-lying longitudinal sides of the engine and the exhaust valves (26, 27) on respective opposite side walls in relation to the crankshaft axis. One swirl duct (11, 12) and one filling duct (13, 14) leading to the admission valves (15, 16, 17, 18) are provided per cylinder (7, 8).