Abstract: A novel heat pump device is disclosed. The device is an indoor heat pump comprised of an enclosed indoor pump unit with a heat exchanger. The air source heat pump uses the outdoor ambient air to raise or lower the temperature of the heat pump refrigerant fluids in the outer coils. This device uses a second compressor to raise or lower the temperature of the heat pump refrigerant fluids, as needed. The device can be available in residential, commercial and industrial applications.

Abstract: A new rubber expansion joint for preventing distortions, cracks, and breaks in building materials normally caused by thermal movement. The invention includes a method of making an expansion joint member from used tires and using the resulting expansion joint member by installing it into a structure to create an expansion joint.