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:
Mar. 31, 2020
Filed:
Nov. 21, 2019
Hamilton Company, Reno, NV (US);
Jose Eduardo Guzman, Washoe Valley, NV (US);
Thomas Barresi, Reno, NV (US);
Dana A. Belton, Sparks, NV (US);
Hamilton Company, Reno, NV (US);
Abstract
The invention is directed to a pipette assembly that includes a pipette device, a pipette tip, and an expanding mandrel collet coupling device coupling the tip to the pipette device, the coupling device comprising a central body, a spacer with cogs circumscribing a central body, an expanding mandrel collet circumscribing the spacer having an annular base and circumferentially spaced apart upwardly extending collet arms wherein the cogs protrude through spaces between the arms, and an elastomeric element circumscribing the central body. The collet arms are attached to the annular base and configured to expand between a first and a second greater circumference for engaging a first interior working surface of the tip in concurrence with the elastomeric element sealing against a second interior working surface below the first surface and in concurrence with an abutment between the cogs and a stepped interior shoulder of the pipette tip disposed between the first and second working surfaces.