Abstract: A combination in a mixture, solution, emulsion, or other ways of combining the different elements that make up the combination, to prevent odors in sewer lines from entering various types buildings, trailers, motor homes, manufactured homes, and the like which have plumbing fixtures therein with a connection to be made to a sewer line to conduct refuse from the plumbing fixture or fixtures to the sewer line. Sewer lines are breeding grounds and conduits for odors, and unprotected plumbing fixtures connected to sewer lines can be the entry points of such odors, particularly when the fixtures are left idle for many weeks or even months. The different elements forming the combination are water and polyethylene glycol (PEG) or a similar member of the glycol family, such as polypropylene glycol (PPG), propylene glycol (PG), and ethylene glycol (EG). It may also include, when appropriate, one or more odor-control and/or other control substances.

Abstract: Improvements in the instruments for drawing lines using grooves providing the presentation of lines that may be drawn by placing a sheet of paper over the presentation and engaging the sheet of paper with the point of a writing tool with sufficient force to press the engaged part of the paper into a selected groove and then moving the writing tool point within the line, depositing pencil lead or ink from the end of the writing tool on the paper that is pressed into the selected groove to form a line on the paper. The improvements include the provision of registration marks on a clipboard which has the presentation of grooves for lines to be drawn on the upper side of the clipboard, the registration marks acting as guidelines for the precise placement of the sheet of paper on which lines are to be drawn.

Abstract: A system whose most common use is that of inspecting conduits such as sewers, drainage pipes, water, gas and oil conduits. The system comprises the following individual components: a rotary contact assembly, a control unit, a push rod assembly, and a video camera assembly mounted on a carrier. It also includes a video display unit which may be on the carrier or separately provided. Each of these components may be easily disconnected and reconnected so that any failed component can be determined and replaced in the field, yet maintaining the system's integrity against damage from the type of effluent in which it is required to operate. There are novel splices for damaged wires and/or push rods. Such splices are for damage repairs and changes in length of push rod assemblies which can done in the field instead of having to return the entire system to have any repairs made.

Abstract: The process includes steps for using raw yarn; dying the yarn; drying the dyed yarn by heating it; using the yarn in an appropriate loom machine such as a Jaquard loom or a needle loom to form concentrically-tubed shoe lace stock having a ridge on its outer tube; cutting the stock into desired shoe lace lengths; tipping the ends of the shoe lace lengths; inspecting the shoe laces; and placing the acceptable shoe laces in one area and the rejected shoe laces in another area. The objective of using the process is shown as variations of special shoe laces.

Abstract: An instructional system for teaching the tying of shoelaces using at least one shoelace (1) having a first half section (2) which is preferably light in color, for example, yellow, and a second half section (3), which is preferably dark in color, for example, blue. The two half sections (2) and (3) are permanently secured to one another to form the shoelace (1). Markings (5) are located at a predetermined distance on the first half section (2) of the shoelace (1) to assist a person in learning to tie a shoelace (1).

Abstract: A reusable shield for wall fixture control devices while painting the wall. It has an self-adjustable-depth feature that permits the shield to cover different types and sizes of fixture control devices that project from the wall, and can be sized to cover several such devices which have a common cover plate. The shield is shown to be made of two major parts, made either separately or flexibly joined, one of which is removably secured to the wall and the other of which is adjusted to accommodate the amount of fixture control device projection from the wall while preventing paint from entering the interior of the shield. The adjustable part is able to accommodate a side variety of control devices and is not shaped to be specific to any one device.