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:
Apr. 07, 2026
Filed:
Sep. 17, 2024
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Sachin Ramprashad, West Hartford, CT (US);
Frank Perrelli, East Haven, CT (US);
Leo Veilleux, Jr., Wethersfield, CT (US);
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Abstract
A transfer valve includes a housing. A spool is in the housing and includes a first control surface and a second control surface. A first cavity is formed by the housing and the first control surface. A second cavity is formed by the housing and the second control surface. A first control port connects to the first cavity. A second control port connects to the second cavity. A first centering port is axially between the first control port and the second control port. A second centering port is axially between the first centering port and the second control port. The spool closes the first centering port and the second centering port when in a centered position. The first centering port is connected to the first cavity or the second centering port is connected to the second cavity when the spool is not in the centered position.