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. 03, 2018
Filed:
Oct. 05, 2016
Rod Drivstuen, Monroe, WA (US);
Robert Lee Rawls, Woodinville, WA (US);
Rod Drivstuen, Monroe, WA (US);
Robert Lee Rawls, Woodinville, WA (US);
Other;
Abstract
A hose valve for central vacuum cleaning systems having retractable suction hoses that retract into a system vacuum pipe. The hose valve comprises a valve box, a chamber connection port, and a system pipe connection port arranged to securely engage the chamber connection port. A locking assembly is radially disposed about a locking assembly axis between the chamber connection port and the system pipe connection port. The locking assembly comprises a coaxially disposed compression cylinder having a radially outer cylinder surface arranged to define symmetrically disposed helical grooves. A cylindrical deformable sleeve is coaxially disposed adjacent the compression cylinder and is radially inwardly deformable responsive to an axial compressive force. A thrust ring is disposed adjacent the chamber connection port and defines a radially inner surface having opposing inner post groove followers arranged to engage the helical grooves of the compression cylinder to urge the compression cylinder axially toward the system pipe connection port to compress the deformable sleeve to form a seal around a vacuum suction hose.