Abstract: This invention relates to a boss assembly that seals a pressure vessel and more particularly to sealing a pressure vessel having a composite outer shell for use with a source of compressed gas having a boss and boss cover in sealing engagement. The composite outer shell is wound about the boss and locked into at least one notch and/or a reverse draft cut. The boss cover is removably fastened to the boss utilizing at least one fastener. The principle use is for storage and usage of compressed gas in mobile applications that typically benefit from light weight pressure vessels however other applications will benefit from this invention. For example, applications that routinely fill and/or un-fill containers made of woven, composite, and etc. materials will benefit from this invention.

Abstract: This invention relates generally to a boss assembly that seals a pressure vessel and more particularly to sealing a pressure vessel having a composite outer shell for use with a source of compressed gas having a boss and boss cover in sealing engagement. The composite outer shell is wound about the boss and locked into at least one notch and/or a reverse draft cut. The boss cover is removably fastened to the boss utilizing at least one fastener. The principle use is for storage and usage of compressed gas in mobile applications that typically benefit from light weight pressure vessels however other applications will benefit from this invention. For example, applications that routinely fill and/or un-fill containers made of woven, composite, and etc. materials will benefit from this invention.

Abstract: We describe a system for displaying buried utilities to the operator of an excavator. The display is based on 3D images of the subsurface obtained from advanced locating methods. As the excavator moves, the display changes so that it remains centered on the region near the bucket where the buried pipes are in danger of being broken.

Abstract: Air blast peening equipment includes a flow density transducer and a pressure or velocity transducer for measuring flow velocity. Measured values are compared during peening with predetermined desired values. Operation of the apparatus is automatically adjusted, if necessary, by adjustment of flow density and/or flow velocity to maintain these parameters at desired values.

Abstract: A wheel cover, for a vehicle wheel having an annular and generally axially extending wheel flange, including a retention ring having a generally axially extending retaining flange and a plurality of circumferentially spaced retention clips in snap-on engagement therewith. Each clip includes an axially and circumferentially extending base portion engaging said retaining flange and having three axially outwardly directed tabs at the axially outer end thereof. The two end tabs are respectively received within, and extend axially outwardly through, a pair of slots disposed in a stepped portion of the retaining flange, and the middle tab projects radially and axially outwardly from the base of the clip for engaging the axially inward side of the stepped portion under tension. Each end tab includes a secondary tab which is struck or lanced out of the central portion of the end tab and which extends axially inwardly and radially outwardly for engaging the axially outward side of the stepped portion.