The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2022
Filed:
Sep. 25, 2018
Applicant:
Thermolift, Inc., Stony Brook, NY (US);
Inventor:
Theodore St. George, Anchorage, AK (US);
Assignee:
ThermoLift, Inc., Stony Brook, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04B 17/04 (2006.01); F25B 9/14 (2006.01); F25B 30/02 (2006.01);
U.S. Cl.
CPC ...
F04B 17/04 (2013.01); F25B 9/14 (2013.01); F25B 30/02 (2013.01); F25B 2400/073 (2013.01);
Abstract
A heat pump is disclosed that has a hot displacer section and a cold displacer section with a linear actuator section disposed between the hot and cold displacer sections. By providing the linear actuator section between the displacers, the shafts that couple the actuators in the linear actuator section to their respective displacer is shorter than if the linear actuator section were located at the bottom of the cold displacer. The shorter shaft can be less stiff to avoid buckling. Due to a lesser propensity to cock, there is less friction of the shaft when reciprocating.