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. 29, 1986
Filed:
Mar. 22, 1985
Applicant:
Inventors:
Albert J Trahan, Vernon, CT (US);
Vladimir Vajda, Nussbaumen, CH;
Assignee:
Emhart Industries, Inc., Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65172 ; 65173 ; 65234 ; 65362 ;
Abstract
The plunger comprises a base portion adapted to be mounted on a piston rod and a tip portion which has a glass-engaging surface and a projection which enters a recess in the base portion. A generally cylindrical passage is defined by the base portion and the projection of the tip portion, the portion of the wall of the passage defined by the base portion being screw-threaded. A screw-threaded member is threadedly received in the passage and serves to retain the tip portion on the base portion by engaging a lip of the projection which projects across a portion of the passage.