Abstract:
A clay model support device includes a base, a support frame connected with the base, and a panel connected with the support frame. The base includes a lower surface configured to engage an associated horizontal floor surface. The support frame is pivotable with respect to the base about a generally horizontal axis. The panel is configured to support an associated clay model. The panel is slidable with respect to the support frame
Abstract:
A washout container to which are mounted inclined ramps that allow a transit mixer, concrete pumping truck or other concrete handling vehicle to drive up over a portion of the container for dumping excess concrete and washing out waste concrete. The container cross-section may be rectangular to semi-circular, and is preferably fabricated with a steel structure. A watertight latching door assembly is coupled to the container to prevent leakage of collected liquid concrete waste material while allowing solidified concrete materials to be unloaded at a disposal site. The interior of the container is preferably lined with a material to which concrete will not adhere. The liner may be applied as a coating to the interior of the container or as a solid material retained within the container. In this way, solidified waste concrete can be easily removed from the container at the disposal site and preferably crushed for recycling.
Abstract:
A sub-floor assembly for a sports flooring system includes a plurality of sub-floor panel components each formed of a plastic material and each having a formed channel wherein the formed channels of the plurality of sub-floor panel components are linearly aligned. A first strip of anchoring material is disposed within the linearly aligned formed channels of the plurality of sub-floor panel components and is used to attach a plurality of flooring strips to the sub-floor panel components.
Abstract:
A modular synthetic floor tile comprising: (a) an upper contact surface; (b) a plurality of openings formed in the upper contact surface, each of the openings having a geometry defined by structural members configured to intersect with one another at various intersection points to form at least one acute angle as measured between imaginary axes extending through the intersection points, the structural members having a smooth, planar top surface forming the contact surface, and a face oriented transverse to the top surface; (c) a transition surface extending between the top surface and the face of the structural members configured to provide a blunt edge between the top surface and the face, and to reduce abrasiveness of the floor tile; and (d) means for coupling the floor tile to at least one other floor tile.
Abstract:
A method and apparatus providing a tile configured to form a modular floor covering including an array of substantially identical tiles. The tile includes a top surface, bottom side, front and rear sides and first and second lateral sides. The top surface includes an elongated shape and the bottom side includes a support grid. The front and rear sides are defined along a longitudinal length of the elongated shape. The front side includes at least one first hinge member and the rear side includes at least one complementary second hinge member configured to be engageable with the at least one first hinge member of an adjacently positioned tile. The first and second lateral sides define a width of the elongated shape with the first and second lateral sides including a respective tab and slot coupling portion each having a coupling length at least one-third the width of the elongated shape.
Abstract:
The hazards of exposure to heavy metal contamination, examples of which arsenic, beryllium, lead, cadmium, chromium, nickel, zinc, mercury and barium, and the radioactive substances which deposit in human bone, examples of which are uranium, plutonium, and americium, are very serious and are well known to scientific and medical professionals. Since lead is a prevalent metal contaminant which deposits in human bone, and its effects are quite hazardous, especially to young children, the focus of this disclosure will be on methods of detecting lead exposure. While it is possible to detect the level of lead in the body through the use of a blood test, the relevancy of such tests is limited, since the risk to humans from lead exposure is related to the amount of lead deposited in the bones of the exposed person and not, necessarily, the amount in the blood. Moreover, drawing blood causes some discomfort on the part of the person being tested, which is especially difficult with small children, who are particularly at risk to lead exposure due to various environmental factors. Accordingly, an alternative method, the indirect measure of the level of cumulative lead exposure in the bones of a person by sue of x-ray fluorescence, is often employed. This invention relates generally to surrogate structures, or phantoms, that exhibit radiological properties of bone, muscle, and other soft tissue. Specifically, this invention relates to phantoms which have been designed to accurately exhibit anthropometric and radiological properties of human bone and soft tissue for use in calibrating the response of spectroscopic instruments that enable in vivo measurement of the levels of contamination from stable metals and radioactive material.