Abstract: A door hinge includes a door flange. The door flange includes a first-cylindrical portion. The first-cylindrical portion segmented and having an axially vectored borehole therethrough. The door hinge includes a frame flange. The frame flange including a second-cylindrical portion. The second-cylindrical portion segmented and having a corresponding axially vectored borehole therethrough. The first-cylindrical portion and second-cylindrical portion are configured to engage when their respective boreholes are coaxial. A plurality of apertures are disposed on the door flange and the frame flange. A plurality of plugs are included with the door hinge. Each of the plurality of plugs are sized and dimensioned to close at least one of the plurality of apertures. The door hinge is useful for attaching a door to a door frame.

Abstract: A tool for cleaning thin ducts and/or channels (“ducts”) including the mouthpiece blowing duct(s) of musical instruments such as recorders and whistles, which tool is a thin plastic-like strip with a tongue (forward) portion followed by a corrugation pattern of wave-like surfaces which must compress in order for the tool to enter and pass through the duct to be cleaned. The user threads the tongue through the duct and grabs the finger-hold portion revealed, then pulls the tool completely through; as the compressed wave-like surfaces travel through the duct they act like squeegees, cleaning the walls and carrying the moisture and debris out; the compressed surfaces decompress/relax once outside the duct restriction. The user cleans the dirty tool on a tissue or towel and the tool is ready for reuse. The tool can be inexpensively mass produced by common methods.

Abstract: Methylidene mevalonic acid, a material isolated from a fungal extract, and its primary alcohol and carboxylic acid derivatives, are potent herbicides demonstrating a broad spectrum of weed control. These materials are useful for weed control and for the cultivation of organically grown crops.

Abstract: An elastomeric base for a pressure vessel is configured to be adhesively secured to the bottom of the vessel in order to eliminate the problems caused by welding of steel legs. The base includes a surface configured to correspond with a curved surface of the compressor vessel. Advantageously, the base may be formed of an elastomeric material, a plastic, or of an elastomeric material co-molded with a ridged plastic.

Abstract: 4-Aminopicolinic acids having (1,1-difluoroalkyl) substituents in the 6-position and their amine and acid derivatives are potent herbicides demonstrating a broad spectrum of weed control.