Abstract: Disclosed are systems for converting rotational momentum into linear propulsion. A propulsion system includes one or more thrust units with masses controllably driven by actuators to generate inertia that thrusts a vehicle with the propulsion system in a desired direction. The propulsion system can be configured to have multiple units, each configured to generate thrust in a desired direction and counteract or neutralize thrust in other directions. The propulsion system can generate thrust via two operational cycles and/or through continuous operation. The propulsion system may comprise two mirroring units, each configured to operate in mirrored synchrony to generate a net thrust in a desired direction and counteract or neutralize thrust in other or undesired directions.

Abstract: Disclosed are systems for converting rotational momentum into linear propulsion. A propulsion system includes one or more thrust units with masses controllably driven by actuators to generate inertia that thrusts a vehicle with the propulsion system in a desired direction. The propulsion system can be configured to have multiple units, each configured to generate thrust in a desired direction and counteract or neutralize thrust in other directions. The propulsion system can generate thrust via two operational cycles and/or through continuous operation. The propulsion system may comprise two mirroring units, each configured to operate in mirrored synchrony to generate a net thrust in a desired direction and counteract or neutralize thrust in other or undesired directions.

Abstract: A heat exchanger has a multiplicity of modules with an outer shell which is open at the top and the bottom and is joined with other modules in a stacked array. The heat exchanger has an insulating partition which is attached to the inside surface of the shell and divides the shell into two or more flow channels. The insulating partition has a hole which connects the flow channels defined by the shell and baffle. The hole is occupied by a heat-conductive heat storage reservoir, so that heat flow from one channel to another is through the heat storage reservoir. In this way, heat may pass from one flow channel into the storage reservoir and at a latter time be exchanged with a fluid flowing in another flow channel. Heat exchange modules have multiple flow channels and the flow channels preferably have heat conducting fins for increasing the heat transfer between the flow channels and the heat storage reservoir.

Abstract: Waste water heat transfer apparatus is disclosed in which the waste water from residential or commercial uses such as washing, etc., is passed into a separate drain and then into a heat exchanger which includes a waste water conduit therein, and then to the sewer drain. A supply water conduit extends through the heat exchanger generally paralleling the waste water conduit and has fresh water run therethrough in a direction opposite to that of the flow of waste water to an outlet end, after which the supply water is provided to a water heater. The heat exchanger interior is filled with a heat transfer liquid, and is so divided by baffles that a temperature gradient is formed in the heat transfer liquid adjacent to the waste water conduit, with the liquid being warmest adjacent the inlet of the waste water conduit and decreasing in temperature toward the outlet of the conduit.

Abstract: Waste water heat transfer apparatus (10) is disclosed in which the waste hot water from residential or commercial uses such as washing, etc., is passed into a separate drain (24) and then into a heat exchanger (17) which includes a waste water conduit (40) therein, and then to the sewer drain (29). A supply water conduit (70) extends through the heat exchanger (11) generally paralleling the waste water conduit (40) and has fresh water run therethrough in a direction opposite to that of the flow of waste water to an outlet end, after which the supply water is provided to a water heater (20). The heat exchanger interior is filled with a heat transfer liquid (39), and is so divided by baffles (75, 76) that a temperature gradient is formed in the heat transfer liquid adjacent to the waste water conduit (40), with the liquid being warmest adjacent the inlet (68) of the waste water conduit and decreasing in temperature toward the outlet (69) of the conduit.

Abstract: Waste water heat transfer apparatus (10) is disclosed in which the waste hot water from residential or commercial uses such as washing, etc., is passed into a separate drain (24) and thence into a heat exchanger (17) which includes a waste water conduit (40) therein, and thence to the sewer drain (29). A supply water conduit (70) extends through the heat exchanger (17) generally paralleling the waste water conduit (40) and has fresh water run therethrough in a direction opposite to that of the flow of waste water to an outlet end, after which the supply water is provided to a water heater (20). The heat exchanger interior is filled with a heat transfer liquid (39), and is so divided by baffles (75, 76) that a temperature gradient is formed in the heat transfer liquid adjacent to the waste water conduit (40), with the liquid being warmest adjacent the inlet (68) of the waste water conduit and decreasing in temperature toward the outlet (69) of the conduit.