Abstract:
A scroll compressor is provided with a recess to increase the flow area through which compression chambers communicate with a discharge port. The scroll compressor is of the sort having a wrap with a swing radius that is always equal to or greater than zero. That is, this invention does not apply to the type of scroll compressor wherein a swing radius will cross zero as the wrap is generated. Stated another way, a forward ledge of the scroll compressor can be defined spaced towards a tip of the scroll wrap relative to a rear ledge. The present invention provides a recess in the type of scroll wrap wherein the forward ledge has a thickness that is at least equal to or greater than the thickness of the scroll wrap at the rear ledge. A supplemental recess may be provided in the non-orbiting scroll wrap. The recess in the orbiting scroll may be stepped to have different height portions.
Abstract:
A method for calibrating a printhead includes printing a test pattern, scanning the test pattern to obtain calibration data, performing an ink drop velocity optimization for the printhead using the calibration data, and determining a bi-directional offset based on the calibration data.
Abstract:
Embodiments may include methods and systems for a rotating multi-basketball shooting game. It may include a rim mounting hub attached to a vertical shaft; at least three differently sized basketball rims radially attached to said rim mounting hub providing a basketball hoop configuration; a stepper motor configured to rotate said vertical shaft along with said attached rim mounting hub attached to said three differently sized basketball rims; a backboard located in front of said vertical shaft and said rim mounting hub; and perhaps even an opening in said backboard configured to allow passage of each of said three differently sized basketball rims through said opening while said vertical shaft, said rim mounting hub and said three differently sized basketball rims are rotated.
Abstract:
An improved gauge for determining the distance between a plane and a point includes a contact probe allowed to rotate within a support frame and coupled to a rotary sensor. When released, force provided by an energizing device urges the probe from the start position, normal to the start plane, to the measured point. As the contact probe moves toward and makes contact with the measured point, output from the rotary sensor is translated through a microprocessor and interpreted through an equation as a normal distance from the start point to the contact surface of the probe. The resultant of the equation is displayed onto a digital readout. The digital readout features a touchpad interface which allows the user to control measurement units, power controls and default start points. In addition to individual readouts, this apparatus may be applied to a multi-readout embodiment which displays the outputs from multiple devices on a single output display.
Abstract:
A fluid composition of (a) a friction modifier derived from the reaction of a carboxylic acid or a reactive equivalent thereof with an aminoalcohol, the friction modifier containing at least two hydrocarbyl groups; and (b) a dispersant other than a species of (a), provides good friction properties to an automatic transmission.
Abstract:
A refrigeration system has first and second evaporators which may be operated at first and second temperatures. Refrigerant from a lower temperature evaporator may be returned to a compressor suction port. Refrigerant from the higher temperature evaporator may be returned to an intermediate port.
Abstract:
Scroll compressors are provided with vapor injection or by-pass ports that will allow greater flow of refrigerant through the port than was the case in the prior art. The prior art has typically utilized a single injection port having a diameter equal to or slightly larger than the thickness of the scroll wrap. In this way, the scroll wrap is able to prevent or restrict cross-flow leakage from the port from passing between the two compression chambers. However, this single port has also limited the amount of refrigerant that can be returned. In one embodiment, the present invention utilizes a plurality of ports generally spaced along the length of the wrap such that cross-flow can still be prevented while providing a greater cross-sectional flow area into or out of the compression chambers. In another embodiment, the several ports may be replaced by a single elongated port. Further, if cross-flow leakage is not a particular problem, the ports may be positioned such that they begin to communicate, and stop communicating, serially, with the two chambers.
Abstract:
A method utilizing basketball rebounders, network connections, various sensors, video cameras, and output monitors to allow basketball shooters to engage in shooting competitions with one another without being in the same physical location.
Abstract:
The invention provides an amphiphilic compound suitable for oil-in-water systems. The amphiphilic compound contains: (a) a lipophilic component that is hydrocarbon group containing about 20 or more carbon atoms; (b) a hydrophilic component selected from (i) a monomer or an oligomer of an oxyalkylene group containing 2 or more carbon atoms; (ii) a monomer or an oligomer of an oxyalkylene group containing 3 or more carbon atoms; (iii) an oligiomer containing: (1) an oxyalkylene group containing 3 or more carbon atoms; (2) an oxyalkylene group containing 2 or more carbon atoms, provided component (2) is different from component (1); (iv) a hydrocarbyl substituted hydroxyamino group; (v) a polyhydric alcohol group; and (vi) a polyamino group; and (c) a linker covalently bonding the hydrophilic component and the lipophilic component, wherein the hydrophilic component is present in an amount sufficient to at least partially disperse the amphiphilic compound in water. The invention further provides a method of preparing the amphiphilic compound.