Abstract: A reusable respirator including a mask adapted for covering and conforming to the face around the nose and a mouth of a user, a strap configured to secure the mask to a face of the user, and a filter component. All components of the respirator are capable of being cleaned, disinfected and sterilized at temperatures in excess of 50° C. An outer surface of the mask is substantially smooth and wettable for easily disinfecting and is shaped with a pair of outer shield portions for housing particulate air filters. The outer shield portions each include a closeable vent through the outer surface that is adapted to provide a user seal check and direct air flow through the outer surface for filtering by the respective particulate air filter, which is adapted to filter at least 95% of airborne particles.

Abstract: A reusable respirator including a mask adapted for covering and conforming to the face around the nose and a mouth of a user, a strap configured to secure the mask to a face of the user, and a filter component. All components of the respirator are capable of being cleaned, disinfected and sterilized at temperatures in excess of 50° C. An outer surface of the mask is substantially smooth and wettable for easily disinfecting and is shaped with a pair of outer shield portions for housing particulate air filters. The outer shield portions each include a closeable vent through the outer surface that is adapted to provide a user seal check and direct air flow through the outer surface for filtering by the respective particulate air filter, which is adapted to filter at least 95% of airborne particles.

Abstract: A reusable respirator including a mask adapted for covering and conforming to the face around the nose and a mouth of a user, a strap configured to secure the mask to a face of the user, and a filter component. All components of the respirator are capable of being cleaned, disinfected and sterilized at temperatures in excess of 50° C. An outer surface of the mask is substantially smooth and wettable for easily disinfecting and is shaped with a pair of outer shield portions for housing particulate air filters. The outer shield portions each include a closeable vent through the outer surface that is adapted to provide a user seal check and direct air flow through the outer surface for filtering by the respective particulate air filter, which is adapted to filter at least 95% of airborne particles.

Abstract: A reusable respirator including a mask adapted for covering and conforming to the face around the nose and a mouth of a user, a strap configured to secure the mask to a face of the user, and a filter component. All components of the respirator are capable of being cleaned, disinfected and sterilized at temperatures in excess of 50° C. An outer surface of the mask is substantially smooth and wettable for easily disinfecting and is shaped with a pair of outer shield portions for housing particulate air filters. The outer shield portions each include a closeable vent through the outer surface that is adapted to provide a user seal check and direct air flow through the outer surface for filtering by the respective particulate air filter, which is adapted to filter at least 95% of airborne particles.

Abstract: A hood is provided that includes a collar and a head covering. The collar includes at least one elastomeric layer configured to be sealingly fit around a body part of a wearer. The elastomeric layer includes perforations. The head covering includes at least one thermoplastic layer configured to receive a head of the wearer and terminating at an edge portion defining an opening configured for insertion of the head of the wearer. The head covering further includes integral connections extending through the perforations of the elastomeric layer to sealingly engage the head covering to the collar. Also provided are containment assemblies and methods of making and using the same.

Abstract: A filter assembly for use with a respirator may include a conformal filter having a body with at least one filter bed, an input end, and an output end recessed within the body and having an integral threaded connector having external threads adapted to thread onto a respirator inhalation connector, and a threaded connector piece removably mounted to the integral threaded connector of the conformal filter.

Abstract: A filter assembly for use with a respirator may include a conformal filter having a body with at least one filter bed, an input end, and an output end recessed within the body and having an integral threaded connector having external threads adapted to thread onto a respirator inhalation connector, and a threaded connector piece removably mounted to the integral threaded connector of the conformal filter.

Abstract: An adapter for use with a gas filter canister worn by a user as part of a breathing apparatus. The adapter is constructed of a semi-rigid plastic that has a plurality of scalloped or castellated edges. The scalloped or castellated edges allow the adapter to snap-fit over the top of the canister. Projections or lugs on the inside of the edge of the adapter can deflect and snap over the rim of the canister. An adapter seal in the form of a large preformed packing or O-ring, is pressed between the inside of the adapter top and the outside of the canister top such that an airtight seal is formed. The adapter is capable of moving relative to the filter canister to accommodate different positions of the flexible conduit between an adapter inlet and the outlet of a self contained blower assembly.

Abstract: A filter cartridge assembly including a replendam that combines a particulate filter with an irregular shaped gas sorbent bed. Best operational practice requires that the air passing through the filter be distributed uniformly over the sorbent bed. The repledam directs the air over the surface of the larger sorbent bed utilizing vane-like structures extending from the reticulated member providing for uniform distribution.

Abstract: A filter cartridge assembly including a replendam that combines a particulate filter with an irregular shaped gas sorbent bed. Best operational practice requires that the air passing through the filter be distributed uniformly over the sorbent bed. The replendam directs the air over the surface of the larger sorbent bed utilizing vane-like structures extending from the reticulated member providing for uniform distribution.

Abstract: A mechanism for vertical adjustability and securement of a backrest of a chair on the upright support of the chair having a housing which includes first and second housing members, and a pair of link assemblies, pivotally connected and movable between a locked position and an unlocked position. A resilient sleeve is carried by one of the link assemblies and is engageable against the upright support when the link assemblies are in the locked position to grip the upright support between the sleeve and a rod to prohibit vertical movement of the housing with respect to the upright support.

Abstract: A bearing assembly comprising a roller mechanism and a cage member. The roller mechanism includes a plurality of roller members and a plurality of frangible connector links for initially connecting each roller member to an adjacent roller member. The roller members and the connector links are integrally molded together. The cage member includes a circular flange and a plurality of spacer pegs extending perpendicular from the flange in a circular configuration. The pegs are spaced apart from one another and each peg includes a tip having a hollow chamber adapted to receive and store a connector link. The pegs are adapted to be inserted between adjacent roller members during assembly such that when the cage member and the roller mechanism are pressed together, the pegs will sever the connector links from the roller members and will retain the severed connector links in the chambers of the peg tips. The severed roller members are then free to independently rotate within the cage member.

Abstract: A retainer and bearing assembly in which the bearing members are formed as an integral component of, and are initially connected to the retainer, for separation upon assembly or use.

Abstract: A caster for supporting an article of furniture and for rolling over a surface including a body having a first axle and a second axle with the first axle being disposed at an angle to a second axle and the first and second axles being disposed at acute angles to the surface. Two or more wheels are mounted for rotation about the first axle with each wheel being relatively rotatable with respect to each other wheel. Two or more wheels are also mounted for rotation about the second axle with each wheel being relatively rotatable with respect to each other wheel.

Abstract: A dual wheel tilted axle caster in which the bearing members are formed as an integral component of, and are initially connected to the retainer, for separation upon assembly or use.

Abstract: A caster with a constant electrically conductive path defined from the pintle to the surface on which the caster wheels are supported to prevent the build up of static charges which may generate sparks and uncontrolled voltage surges that may damage electronic components or cause combustion in volatile environments.

Abstract: A protective covering for annular objects, such as caster wheels, which covering consists of a continuous band of heat-shrinkable plastic material defining spaced marginal edges thereabout, which band is proportioned thereabout to be closely received over and about the tread of the caster wheel in overlapping relation to the wheel along both side edges of the wheel tread, for heat shrinking thereagainst, whereby the band is tensioned against the wheel tread, and the wheel tread side edges, in protective relation to the tread, which band is formed to provide what becomes a tear or release strip that functions to sever the band, when removal of the covering is desired, from one side edge of the band to the other.