Abstract: A bolt cutter includes a first handle, a second handle, a first head connected to the first handle, and a second head connected to the second handle. A pivot mechanism pivotally connects the first head and the second head. A first cutting edge is formed on the first head, and a second cutting edge is formed on the second head in opposing relation to the first cutting edge. A ratcheting mechanism is disposed between the first and second heads. The ratcheting mechanism engages one of the first and second heads to pivotally lock the first head with the second head and permit pivotal motion between the first and second heads only in one direction when the ratcheting mechanism is engaged.

Abstract: An automated system and method is provided for cultivating bacteria in a fluid medium and thereafter selectively discharging the fluid medium, wherein an initial supply of the selected strain or strains of bacteria is combined with nutrients and water in a biogenerator in the presence of air to promote mixing and bacterial cultivation. The system and method utilize a vortex created by recirculation of the fluid medium to achieve aeration and mixing without substantial foaming. The system and method are particularly useful for supplying bacteria to control grease accumulation in restaurant grease traps. The system and method use a biogeneration chamber which has a cylindrical sidewall and surface on the inner side. Further, the chamber has a top and a conical bottom. The top has inlet ports and a vent port. There is also a outlet port in the conical bottom.