Abstract: A pipe coupling for connecting adjacent pipes. The pipe coupling has a connection type at each end that may be male or female. A female end may have an interior surface defining a receiving chamber. An interior circumferential groove is formed in the interior surface in which a band is seated. A plurality of rigid fingers is extends from the band into the receiving chamber. The receiving chamber receives a male end of an adjacent pipe, the male end having an exterior surface. An exterior circumferential groove is defined on the exterior surface to receive the plurality of rigid fingers. A variety of connection types and combinations are disclosed. The female end may define a sight window to permit viewing of the position of a male end of an adjacent pipe. The receiving chamber may have a reduced diameter proximate to the middle of the coupling to improve sealing.

Abstract: A pipe coupling for connecting adjacent pipes. The pipe coupling has a connection type at each end that may be male or female. A female end may have an interior surface defining a receiving chamber. An interior circumferential groove is formed in the interior surface in which a band is seated. A plurality of rigid fingers is extends from the band into the receiving chamber. The receiving chamber receives a male end of an adjacent pipe, the male end having an exterior surface. An exterior circumferential groove is defined on the exterior surface to receive the plurality of rigid fingers. A variety of connection types and combinations are disclosed. The female end may define a sight window to permit viewing of the position of a male end of an adjacent pipe. The receiving chamber may have a reduced diameter proximate to the middle of the coupling to improve sealing.

Abstract: A series of mixtures of N-butyl cyanoacrylate and 2-octyl-cyanoacrylate monomers having specific and differing concentrations of free radical inhibitor/antioxidant stabilizers for each mixture of the two monomers. This results in cyanoacrylate compositions that can withstand radiation such as E-beam and gamma radiation at any desired level and not be adversely affected.

Abstract: A series of mixtures of N-butyl cyanoacrylate and 2-octyl-cyanoacrylate monomers having specific and differing concentrations of free radical inhibitor/antioxidant stabilizers for each mixture of the two monomers. This results in cyanoacrylate compositions that can withstand radiation such as E-beam and gamma radiation at any desired level and not be adversely affected.

Abstract: A cleaning brush that is uniquely configured for removing lint, dust and other debris from an arcuate duct, such as an exhaust duct of a clothes dryer. The brush generally includes a body having an elongate arcuate shape, with a radius of curvature that is preferably greater than the length of the body. The body is formed of a flexible material so as to permit the brush to flex in the direction of the radius of curvature, which enables the brush to adapt to variations in the arcuate shapes of ducts. The brush is also provided with bristles that substantially cover one end of the body. The bristles include shorter, tightly-wound inner bristles and longer bristles that surround the inner bristles. As such, the brush is characterized by features that uniquely enable the brush to effectively remove lint and dust from along the entire length of a duct, yet enable the brush to flex sufficiently to accommodate variations in the arcuate shapes of ducts.