Abstract: A method of operating a sublimating device includes providing heat to a cavity of the sublimating device by increasing (i) a temperature of a heater to a predetermined target temperature and (ii) a temperature of a base heater to a predetermined standby temperature. The method further includes determining a difference between the predetermined target temperature and a reduced temperature of the heater. The method also includes determining whether a workpiece is arranged in the cavity based on the difference between the predetermined target temperature and a reduced temperature.

Abstract: The disclosure describes a pressure vessel having a first end with a first boss and a cylindrical portion. The vessel includes a liner, a composite shell disposed over the liner, and a first longitudinal vent disposed between the liner and the composite shell. The first longitudinal vent includes an elongated vent defining element and extends at least from the cylindrical portion of the vessel to the first boss.

Abstract: The disclosure describes a pressure vessel having a first end with a first boss and a cylindrical portion. The vessel includes a liner, a composite shell disposed over the liner, and a first longitudinal vent disposed between the liner and the composite shell. The first longitudinal vent includes an elongated vent defining element and extends at least from the cylindrical portion of the vessel to the first boss.

Abstract: The present invention is directed to a moisture sealed and vandal-resistant lighting fixture and is characterized by novel means for securing a diffuser in tightly sealed engagement against a gasket on the housing of a lighting fixture, which means precludes the ingress of moisture and reduces the likelihood that the fixture may be vandalized. More particularly, the invention relates to a lighting fixture, preferably rectangular, wherein the diffuser component is pressed against the mouth portion of the housing component by a cam arrangement, access to the cam arrangement being provided through a wall of the housing via an inconspicuous aperture or apertures whereby only one who is familiar with the operating characteristics of the fixture would recognize how to release the cam arrangement and, hence, the diffuser.