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:
Jan. 25, 2022
Filed:
Aug. 16, 2019
Unl Holdings Llc, New York, NY (US);
Daniel A. Heinsbergen, Narberth, PA (US);
Bryan Frederick Bell, Jr., Red Lion, PA (US);
Robert Scott Russo, Gettysburg, PA (US);
Dinesh Panneerselvam, Thorndale, PA (US);
Brandon J. McKee, Nesquehoning, PA (US);
UNL Holdings LLC, New York, NY (US);
Abstract
An expanding plunger rod () for a syringe (). The expanding plunger rod is configured to transition from a packaged configuration for packaging to an expanded configuration for operation. The expanding plunger rod comprises a substantially cylindrical outer sleeve () having a closed-off bottom end () and an open upper end (). The expanding plunger includes an inner rod () having a lower end () and an upper end (). The inner rod is slidably disposed coaxially within the outer sleeve. In the packaged configuration, the inner rod is nested within the outer sleeve. In the expanded configuration, the inner rod is disposed substantially axially above the outer sleeve, and the inner rod is configured to lock axially in place so as to prevent transition from the expanded configuration to the packaged configuration.