Abstract: A protective cover for covering the end of a reinforcing bar has a cylindrical tube having an open end and an upper end. A cap is on the upper end of the tube, and an inverted fristo-conical surface is provided in the upper end of the tube to cause the reinforcing bar to orient itself vertically upon impact by a falling body. The protective cover also has strengthening ribs both above and below the canopy to prevent its inadvertent collapse. The ribs below the canopy are further strengthened against lateral deflection by a circular wall which extends downwardly from the canopy and intersects each of the ribs at their substantial mid section.

Abstract: A protective cover for covering the end of a reinforcing bar has a cylindrical tube having an open end and an upper end. A cap is on the upper end of the tube, and an inverted fristo-conical surface is provided in the upper end of the tube to cause the reinforcing bar to orient itself vertically upon impact by a falling body. The protective cover also has strengthening ribs both above and below the canopy to prevent its inadvertent collapse. The ribs below the canopy are further strengthened against lateral deflection by a circular wall which extends downwardly from the canopy and intersects each of the ribs at their substantial mid section.

Abstract: A packaging device includes upper and lower container portions that support respective frames that, in turn, support respective support films. The frames and the container portions are configured such that the act of installing the frames in the container portions automatically increases tension in the films. This can be accomplished by rotating opposed portions of the frames in opposite directions, by displacing the film out of the plane in which it is originally supported by the frame, or by displacing opposed portions of the frame away from one another. The film of the lower container portion is recessed with respect to a peripheral lip of the lower container portion, while the film of the upper container portion protrudes beyond the peripheral lip of the upper container portion. In this way objects are prevented from rolling out of the lower container portion, yet the films are brought into face-to-face contact when the packaging device is closed.

Abstract: A self-locking housing for an electronic circuit such as a power supply. The self-locking housing includes a printed circuit board carrying an electronic circuit, a bottom housing half, and a top housing half. The bottom housing half has locator tabs placed at one end for holding one end of the printed circuit board in a predetermined position within the interior of the bottom housing. Opposing support tabs are placed at the other end and side support tabs are provided on the side of the bottom housing. The support tabs support the printed circuit board in the bottom housing. Bottom snaps are provided on opposing sides of the bottom housing, and the printed circuit board abuts against the bottom snaps. The top housing has corresponding opposing grooves so that when the top housing is placed over the bottom housing the snaps in the bottom housing snap into the grooves so as to self-lock with the top housing.

Abstract: A low profile, compact television antenna for use on vehicles such as recreational vehicles. The antenna of the present invention uses snap-fastening assembly for ease of assembly and disassembly. The overall profile of the antenna has been reduced to two inches to reduce the effects of wind resistance against the antenna as the vehicle on which it is mounted is moved. The antenna also has improved stability. The angle of bend of the wing tips of the antenna wings have also been reduced to reduce the overall profile and to reduce oscillation of the wing tips against the roof of the vehicle. The antenna of the present invention also includes an integral leveling block for engagement with an antenna support boom. The leveling block is integrally molded with the housing to provide a stronger, lighter weight, more compact structure than the prior separable leveling blocks.