Abstract: A sign assembly includes a sign panel, a base including an upper surface and a lower surface, a first longitudinal side and a second longitudinal side, the first longitudinal side including a midpoint disposed between first and second outer points, and the second longitudinal side including a midpoint disposed between first and second outer points, and first and second longitudinal sides, and a platform disposed on the base for attaching the sign panel to the base, wherein a distance between the midpoint of the first longitudinal side and the midpoint of the second longitudinal side is less than a distance between the first outer points of the first and second longitudinal sides, and the distance between the midpoint of the first longitudinal side and the midpoint of the second longitudinal side is less than a distance between the second outer points of the first and second longitudinal sides.

Abstract: A sign assembly includes a sign panel, a base including an upper surface and a lower surface, a first longitudinal side and a second longitudinal side, the first longitudinal side including a midpoint disposed between first and second outer points, and the second longitudinal side including a midpoint disposed between first and second outer points, and first and second longitudinal sides, and a platform disposed on the base for attaching the sign panel to the base, wherein a distance between the midpoint of the first longitudinal side and the midpoint of the second longitudinal side is less than a distance between the first outer points of the first and second longitudinal sides, and the distance between the midpoint of the first longitudinal side and the midpoint of the second longitudinal side is less than a distance between the second outer points of the first and second longitudinal sides.

Abstract: An air diffuser for use at a ventilation outlet of an HVAC system. The air diffuser comprises a base platform having an opening plenum formed from injection-molded plastic, the base platform including a collar for attachment to the outlet, the plenum defined by a perimeter rim, the edges of the rim lying substantially within a first common plane, at least one first diffuser plate positioned over the plenum, the first diffuser plate formed from injection-molded plastic and having edges lying substantially within a second common plane, and a plurality of stems integrally molded with one or more of the first diffuser plate and the base, the stems configured to secure the first diffuser plate to the base platform, each of the stems having a first end sized to fit within a complimentary female receptacle formed in one of the first diffuser plate and the base platform, the stems being formed via injection molding with one of the first diffuser plate and the base platform.

Abstract: A sign assembly includes a panel and a base. The base is configured to be attached to the panel via a resilient member. The bottom surface of the base defines a pair of cavities. The cavities are positioned substantially adjacent to a forward edge of the bottom surface. A pair of wheel assemblies is secured within respective cavities on the bottom surface. Each wheel assembly includes a housing that houses an axle and wheel.

Abstract: An air diffuser for use at a ventilation outlet of an HVAC system. The air diffuser comprises a base platform having an opening plenum formed from injection-molded plastic, the base platform including a collar for attachment to the outlet, the plenum defined by a perimeter rim, the edges of the rim lying substantially within a first common plane, at least one first diffuser plate positioned over the plenum, the first diffuser plate formed from injection-molded plastic and having edges lying substantially within a second common plane, and a plurality of stems integrally molded with one or more of the first diffuser plate and the base, the stems configured to secure the first diffuser plate to the base platform, each of the stems having a first end sized to fit within a complimentary female receptacle formed in one of the first diffuser plate and the base platform, the stems being formed via injection molding with one of the first diffuser plate and the base platform.

Abstract: A sign assembly includes a base, a pair of spring members, and a panel. The spring members include a resilient portion that includes attachment means at a first end to enable attachment of the spring member to the base. The spring members also include a generally straight rod that extends from a second end of the resilient portion. The panel defines a pair of openings at a lower edge configured to slidably receive the rod of the spring members. The amount by which the rod slides into the panel is configured to secure the panel in an upright position.

Abstract: A sign assembly includes a base, a pair of spring members, and a panel. The spring members include a resilient portion that includes attachment means at a first end to enable attachment of the spring member to the base. The spring members also include a generally straight rod that extends from a second end of the resilient portion. The panel defines a pair of openings at a lower edge configured to slidably receive the rod of the spring members. The amount by which the rod slides into the panel is configured to secure the panel in an upright position.

Abstract: A sign assembly includes a panel and a base. The base is configured to be attached to the panel via a resilient member. The bottom surface of the base defines a pair of cavities. The cavities are positioned substantially adjacent to a forward edge of the bottom surface. A pair of wheel assemblies is secured within respective cavities on the bottom surface. Each wheel assembly includes a housing that houses an axle and wheel.

Abstract: A sign assembly includes a base, a pair of spring members, and a panel. The spring members include a resilient portion that includes attachment means at a first end to enable attachment of the spring member to the base. The spring members also include a generally straight rod that extends from a second end of the resilient portion. The panel defines a pair of openings at a lower edge configured to slidably receive the rod of the spring members. The amount by which the rod slides into the panel is configured to secure the panel in an upright position.

Abstract: A sign frame includes a panel with a first side extension and a second side extension. The first side extension defines an opening for receiving ballast. The first side extension also defines a hollow chamber for storing the ballast. The panel also includes an upper crossbar that extends between distal ends of the first and the second side extensions, and a lower crossbar that extends between proximal ends of the first and the second side extensions. The first and the second side extensions, upper cross bar, and lower crossbar define a front surface and rear surface. The front surface is configured to receive signage.

Abstract: A sign frame assembly having journally connected frames and appearing as an inverted “V” when deployed on a surface. Each frame has legs connected by a panel, and upper and lower crossbars which are parallel to each other and connect the legs. A receptacle defined by a plane including the panel and which is parallel to and separated from a plane formed by surfaces of the legs, and the upper and lower cross bars is provided to hold a flat object which may be used as a sign. The flat object may be inserted and removed without the use of tools or fasteners.

Abstract: An improved A-frame sign stand is disclosed. The sign stand includes front and rear panels hingedly attached. A support rod is removably attachable to the panels and prevents both separation and buckling of the panels. The support rod can be placed into various storage positions. In one such position, the rod may be used as a handle. In another embodiment, the rod can be pivoted upward and stored on an inner surface of the panel.

Abstract: A sign frame comprises a pair of upstanding leg members each having a proximate end and a tapered distal end, at least one top member connecting the leg members at the proximate ends thereof, and at least one cross member connecting the leg members between the proximate and distal ends thereof. The members together define a first sign mounting area. Within the sign frame is at least one mounting flange extending into the first sign mounting area from the sign frame, and at least one elongated stiffening rib upstands from and extends along each of the leg members.

Abstract: An improved A-frame sign stand is disclosed. The sign stand includes front and rear panels hingedly attached. A support rod is removably attachable to the panels and prevents both separation and buckling of the panels. The support rod can be placed into various storage positions. In one such position, the rod may be used as a handle. In another embodiment, the rod can be pivoted upward and stored on an inner surface of the panel.

Abstract: A sign frame assembly having journally connected frames and appearing as an inverted “V” when deployed on a surface. Each frame has legs connected by a panel, and upper and lower crossbars which are parallel to each other and connect the legs. A receptacle defined by a plane including the panel and which is parallel to and separated from a plane formed by surfaces of the legs, and the upper and lower cross bars is provided to hold a flat object which may be used as a sign. The flat object may be inserted and removed without the use of tools or fasteners.

Abstract: A sign frame assembly having journally connected frames and appearing as an inverted “V” when deployed on a surface. Each frame has legs connected by a panel, and upper and lower crossbars which are parallel to each other and connect the legs. A receptacle defined by a plane including the panel and which is parallel to and separated from a plane formed by surfaces of the legs, and the upper and lower cross bars is provided to hold a flat object which may be used as a sign. The flat object may be inserted and removed without the use of tools or fasteners.

Abstract: An improved A-frame sign stand is disclosed. The sign stand includes front and rear panels hingedly attached. A support rod is removably attachable to the panels and prevents both separation and buckling of the panels. The support rod can be placed into various storage positions. In one such position, the rod may be used as a handle. In another embodiment, the rod can be pivoted upward and stored on an inner surface of the panel.

Abstract: A plastic barricade assembly and a method of constructing it. The assembly includes two leg and panel units pivotally interconnected. Each leg and panel unit comprises first and second leg members and a plurality of panel members. The members are separately blow molded of plastic. The first leg members of each leg and panel unit are identical to each other and, at the same time, different than the second leg members of each leg and panel unit which are, in turn, identical to each other. Each leg and panel unit is assembled by bolting a first and second leg member together with a plurality of panel members. The leg and panel members of each unit are bolted together in interlocking relationship.

Abstract: A plastic barricade assembly including two leg and panel units pivotally interconnected. Each leg and panel unit comprises first and second leg members and a plurality of panel members, the members being separately blow molded. The first leg members of each leg and panel unit are identical to each other and, at the same time, different than the second leg members of each leg and panel unit which are, in turn, identical to each other. Each leg and panel unit is assembled by bolting a first and second leg member together with a plurality of panel members. The leg and panel members of each unit are bolted together in interlocking relationship.