Abstract: A spray gun adapter establishes fluid communication between a fluid pump of a handheld airless spray gun and an applicator accessory. The adapter comprises an adapter body, a head attached to the adapter body, and a protrusion. The adapter body comprises an upper portion, a lower portion, a radial inlet located in a sidewall of the adapter body between the upper and lower portions, and an adapter bore having a first diameter in fluid communication with the radial inlet. The head comprises a cavity in fluid communication with the adapter bore and having a second diameter larger than the first diameter, an adapter outlet located in the upper portion of the adapter body and in fluid communication with the cavity, and a handle extending radially from the head. The protrusion extends radially from the adapter body between the upper and lower portions of the adapter body.

Abstract: A pump panel training device is provided and includes a plurality of simulated gages operable to imitate gages upon a fire truck pump panel, a plurality of simulated controls operable to imitate controls upon the fire truck pump panel, and a simulated water hose operable to imitate one of water temperature changes, water temperature pressure, and water hose vibration for the fire truck pump panel.

Abstract: What is disclosed is a lifting bale that has at least two side supports, at least two cross support, and at least one center support and ideally configured to fit over the motor of a concrete saw, to provide handles for lifting the saw, and to provide an attachment point for a lifting mechanism to attach to the lifting bale and to lift the concrete saw, or other object the lifting bale is attached to, upward from the single point while maintaining the concrete saw or other object in a generally level position.

Abstract: What is disclosed is a lifting bale that has at least two side supports, at least two cross support, and at least one center support and ideally configured to fit over the motor of a concrete saw, to provide handles for lifting the saw, and to provide an attachment point for a lifting mechanism to attach to the lifting bale and to lift the concrete saw, or other object the lifting bale is attached to, upward from the single point while maintaining the concrete saw or other object in a generally level position.

Abstract: The present invention is directed toward an instructional methodology that is used in teaching novice or beginner status individuals how to play a musical instrument. The current methodology has been found to be particularly advantageous in teaching the use of stringed instruments such as guitars. More particularly, the instructional system uses a series of repetitive sequencing steps in order for a pupil to understand the positions on the instrument as well as to grasp a fundamental understanding of chord arrangements and musical scales.

Abstract: Improved mechanisms are described for use in an automated, self-service machine that is used to issue a card or other object to an individual, and allow return of the card or other object by the individual for later automated re-issuance of the card or object to the same or different individual. The mechanisms allow the machine to issue a card or object to a user, allow return of the card or object back into the machine, and later reissue of the card or object to the same or different user.

Abstract: A paving machine may include a power source, a traction system, a hopper configured to contain paving material, and one or more conveyors configured to transfer the paving material from the hopper. The paving machine may also include a screed configured to lay a mat of the paving material. The paving machine may further include at least one front sensor mounted on a front portion of the paving machine and configured to measure height from a surface to the front sensor and at least one rear sensor mounted on the paving machine and configured to measure height from a surface of the mat to the rear sensor. The paving machine may also include a controller configured to determine a thickness of the mat by determining a difference between one or more front height measurements taken by the at least one front sensor and one or more rear height measurements taken by the at least one rear sensor.

Abstract: A work machine is provided and adapted for use in paving operations. The work machine has a conveying system for moving paving material from a first end portion to a predetermined distance beyond a second end portion. A receiving portion is included on the second end portion and is adapted to receive a plurality of operational attachments. The plurality of attachments transforms the work machine into three distinct machines that perform different paving operations.

Abstract: A mechanism and method for generating lift with the Bernoulli Effect. A pair of cylindrical impellers create a pair of counter rotating forced linear vortices. Fast moving, low pressure air surrounding the forced vortices comes into contact with the upper sides of semicylindrical lifting surfaces. Higher pressure, slower moving air is in contact with the lower sides of the lifting surfaces. The velocity differentials between the upper and lower sides of the lifting surfaces cause a pressure differential that produces lift.

Abstract: During the etching of a silicon-containing material using a halogen-containing etch gas, a silicon-hydride gas is added to the etch gas to provide increased sidewall protection during the etch. Suitably up to about 50 percent by volume of a silicon-containing gas such as silane is added to improve anisotropy of the etch and to prevent notching at the silicon-substrate interface.

Abstract: During the etching of a silicon-containing material using a halogen-containing etch gas, a silicon-hydride gas is added to the etch gas to provide increased sidewall protection during the etch. Suitably up to about 50 percent by volume of a silicon-containing gas such as silane is added to improve anisotropy of the etch and to prevent notching at the silicon-substrate interface.

Abstract: Flat plate absorber member includes a flat heat absorbing sheet of a thin metal foil such as copper, or a thin plastic film such as polyvinyl fluoride, bonded to a channeled substrate, and particularly to a plastic laminate such as a glass epoxy laminate. The improved absorber member provides an energy collecting efficiency which is much greater than that of a much more expensive conventional collector having a series of copper tubes soldered to a copper sheet. The absorber is preferably made by the method of taking a base sheet of fully cured glass epoxy laminate and overlaying it with a precut, patterned intermediate layer of semi-cured glass expoxy which defines the depth of the side walls of the channels. The cover sheet of metal foil or plastic film is then placed over the semi-cured glass epoxy intermediate layer and heat and pressure are applied to bond the semi-cured glass epoxy to the cover sheet and to the previously cured base sheet.

Abstract: Flat plate absorber member includes a flat heat absorbing sheet of a thin metal foil such as copper, or a thin plastic film such as polyvinyl fluoride, bonded to a channeled substrate, and particularly to a plastic laminate such as a glass epoxy laminate. The improved absorber member provides an energy collecting efficiency which is much greater than that of a much more expensive conventional collector having a series of copper tubes soldered to a copper sheet. The absorber is preferably made by the method of taking a base sheet of fully cured glass epoxy laminate and overlying it with a precut, patterned intermediate layer of semi-cured glass epoxy which defines the depth of the side walls of the channels. The cover sheet of metal foil or plastic film is then placed over the semi-cured glass epoxy intermediate layer and heat and pressure are applied to bond the semi-cured glass epoxy to the cover sheet and to the previously cured base sheet.