Abstract: A compact, easy-to-use, hand tool which is made for the use of installing “Drive-Lock Cleats” on Heating and Air Conditioning sheet metal ductwork utilizing the “S-Lock and Drive-Lock” assembly system. More precisely the hand tool is used to hold the “Drive-Lock Cleat” steady, preventing damage to the Cleat while the Cleat is being driven into place. Further, the tool is used as a guide to tell the user that the Cleat is installed to the proper depth.

Abstract: A compact, easy-to-use, hand tool which is made for the use of installing “Drive-Lock Cleats” on Heating and Air Conditioning sheet metal ductwork utilizing the “S-Lock and Drive-Lock” assembly system. More precisely the hand tool is used to hold the “Drive-Lock Cleat” steady, preventing damage to the Cleat while the Cleat is being driven into place. Further, the tool is used as a guide to tell the user that the Cleat is installed to the proper depth.

Abstract: A compact, easy-to-use, hand tool which is made for the use of installing “Ductmate Clips” on Heating and Air Conditioning sheet metal ductwork utilizing a “Ductmate”, “TDC”, or “TDF” assembly system. The tool is further used in the removal of said “Ductmate Clips”, when ductwork demolition is required.

Abstract: A novel polytetrafluoroethylene (PTFE) material includes a plurality of aggregates connected together by a plurality of relatively long fibrils. Each of the aggregates are formed of PTFE nodes that are connected together by relatively short fibrils. Preferably, the long fibrils have lengths of 500 to 1000 microns and the short fibrils have a lengths of 10 to 30 microns. The aggregates have densities of less than 2.0 grams per cubic centimeter which is lower than the densities of the solid PTFE nodes which have densities of about 2.0 to 2.2 grams per cubic centimeter.