Abstract: A flexible roofing fastener is provided for securing water resistant material to a substrate such as wood and preventing leaks through holes created in the material by the roofing fastener. The roofing fastener includes a resilient disk having a flat lower surface, a thick central region and an annular region having a thickness that tapers downwardly from a central area toward a periphery. The disk central region has a plurality of evenly spaced apart flat-headed nails extending downwardly there through. The annular region having plurality of holes through which sealing material can flow. A flexible disk, when upload flexes in a cup shape causing wedge effect on the anchoring points in the substrate, allowing this fastener to perform better when under a simulated wind uplift testing of various modified bitumen Roof Systems.

Abstract: A window cleaning apparatus includes a handle, a paddle and a cleaning element. The paddle is removably attachable to the handle. The handle includes oppositely extending end pins which are pivotally received in receivers carried on the paddle. At least one of the receivers has a bore which receives on of the handle end pins. At least one of the receivers is formed with separable members for forming a snap-connection with one of the handle end pins. The cleaning element has side edges with elastic to draw the ends of the side edges of the body inward to form an opening smaller than the outer diameter of the paddle to releasably attach the cleaning element about the paddle.

Abstract: A cleaning apparatus and system includes at least one handle, at least one paddle, and at least one cleaning element. The handle is a pivotally attachable to each paddle. The cleaning element has elastic to draw the side edges of the body inward to form an opening smaller than the outer diameter of the paddle to releasably attach the cleaning element about the paddle. A receiver is mounted on each paddle and movably receives one end of the handle.

Abstract: A window cleaning apparatus includes a handle, a paddle and a cleaning element. The paddle is removably attachable to the handle. The handle includes oppositely extending end pins which are pivotally received in receivers carried on the paddle. At least one of the receivers has a bore which receives on of the handle end pins. At least one of the receivers is formed with separable members for forming a snap-connection with one of the handle end pins. The cleaning element has side edges with elastic to draw the ends of the side edges of the body inward to form an opening smaller than the outer diameter of the paddle to releasably attach the cleaning element about the paddle.

Abstract: A cleaning apparatus and system includes at least one handle, at least one paddle, and at least one cleaning element. The handle is a pivotally attachable to each paddle. The cleaning element has elastic to draw the side edges of the body inward to form an opening smaller than the outer diameter of the paddle to releasably attach the cleaning element about the paddle. A receiver is mounted on each paddle and movably receives one end of the handle.

Abstract: A fastener used to secure a surface layer to a base and a two-stage fastener driver used the drive the fastener into the base. The fastener comprising a non-magnetic fastener body retaining a ferro-magnetic nail. The fastener driver for driving the fastener into the base. The fastener driver having a housing for magnetically retaining the fastener.

Abstract: A cleaning apparatus and system includes at least one handle, at least one paddle, and at least one cleaning element. The handle is a pivotally attachable to each paddle. The cleaning element is one of a plurality of interchangeable bodies, each having one major surface engagable with one major surface of a paddle and side edges having elastic to draw the side edges of the body inward to form an opening smaller than the outer diameter of the paddle to releasably attach the cleaning element about the paddle. A receiver is mounted on each paddle and pivotally receive one end of the handle. In one aspect, a ball element is mounted at the first end of the handle and is moveably mounted in the receiver. A plug carrying a ball seat is insertable into the receiver to lock the ball in the receiver.

Abstract: A fastener used to secure a surface layer to a base and a two-stage fastener driver used the drive the fastener into the base. The fastener comprising a non-magnetic fastener body retaining a ferro-magnetic nail. The fastener driver for driving the fastener into the base. The fastener driver having a housing for magnetically retaining the fastener.

Abstract: A window cleaning apparatus includes a handle, a paddle and a cleaning element. The paddle is removably attachable to the handle. The cleaning element is one of a plurality of interchangeable bodies, each having one major surface engagable with one major surface of a paddle and side edges having elastic mounted thereon to draw the ends of the side edges of the body inward to form an opening smaller than the outer diameter of the paddle to releasably attach the cleaning element about the paddle. A first pair of receivers are mounted on each paddle and pivotally receive one end of the handle. A second pair of receivers, mounted in conjunction with the first pair of receivers on a paddle or as a separate element on a paddle, receive a second handle.

Abstract: A window cleaning apparatus includes a handle, a paddle and a cleaning element. The paddle is detachable and pivotally attachable to the handle. A spring biased slider carried on the handle has a pivot pin on one end releasibly engagable with a hinge receiver on the paddle. The cleaning element is one of a plurality of interchangeable bodies, each having one major surface engagable with one major surface of a paddle and side edges having elastic mounted thereon to draw the ends of the side edges of the body inward to form an opening smaller than the outer diameter of the paddle to releasibly attach the body of the cleaning element about the paddle. The bodies are formed of an absorbent material for use as a drying element and with an intermediate fluid carrying layer and a rough mesh layer for use as a scrubbing element.

Abstract: The present invention provides a roofing fastener, a roofing assembly including the roofing fastener, and a method of installing the roofing fastener into the roofing assembly. The roofing fastener includes a head and a shank integrally connected thereto. The shank and the thread thereon permits the roofing fastener to be self-tapping and threaded into a base substrate such as a concrete deck. Preferably, the roofing fastener includes a polygonal socket within nubbins thereon to squeeze about a drill bit. Also, ideally the head of the roofing fastener is round and has a diameter which is greater than the length of the shank. Ideally, the fastener is made of a low-moisture material which can absorb water from the surrounding substrate causing the fastener to swell and increase its holding power.

Abstract: The present invention discloses a self-tapping anchor and a method of installing the anchor into a wall. The anchor includes a flange portion, a drill end portion, and an intermediate shank portion. The intermediate shank portion has a central bore therein for receiving a fastener. An external thread is formed on the shank portion for threading the anchor into the wall. The shank portion is divided by a slot into a pair of leg portions and the external thread is divided into a plurality of discrete thread segments. The drill end portion supports the leg portions to prevent relative twisting therebetween during anchor installation into a wall. A reduced thickness web portion, or alternatively, a through slot, is formed in the drill end portion. When the threaded fastener is threaded into the central bore, the fastener causes the drill end portion to split apart releasing the leg portions so that the leg portions diverge to provide better anchor securement to the wall.

Abstract: A foldable stadium seat having a seat frame and backrest frame joined by a hinge assembly, made of a rigid plastic; the frames have recesses in which seat and backrest cushion pads are located. When folded, the edges of the frame meet and the pads also meet. The hinge assembly is so positioned and configured as to permit surfaces at the back portion of the seat frame and the bottom portion of the backrest frame to be used as stops to resist the thrust of a person leaning slightly backwards when the stadium seat is in use.