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:
Jun. 03, 2003
Filed:
Jan. 10, 2002
Applicant:
Inventors:
Paul R. Pierson, Camden, DE (US);
Curt E. Metzbower, Wyoming, DE (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67D 5/42 ;
U.S. Cl.
CPC ...
B67D 5/42 ;
Abstract
A dispensing syringe ( ) has a barrel ( ) keyed ( ) to a gripping assembly ( ) having complementary keyed surfaces ( ). A nut having dual threads ( ) of differing diameters is threaded to one end of the barrel ( ) and receives a matingly threaded ( ) plunger ( ). Turning the plunger ( ) causes it to advance within the barrel ( ) due to the interaction of the mating threads ( ). The gripping assembly ( ) is provided with winged projections ( ) that facilitate handling and manipulation of the syringe ( ). The complementary keyed surfaces ( and ) physically interact so as to prevent the gripping assembly ( ) from turning or twisting about the barrel ( ) during use.