Plunger rod and piston for a syringe

Details Plunger rod and piston for a syringe Plunger rod and piston for a syringe

1977-03-29

1979-12-25

Yasko, John D.

Surgery

Respiratory method or device

Ozone or ion generation

128234, A61M 5315

Patent

active

041800699

ABSTRACT:
A plunger rod and piston for a syringe which are easily and quickly assembled with a minimum force. The plunger rod has a tip of truncated "christmas tree" shape and the piston, which is of a flexible resilient material, has a pocket of complementary shape to receive the plunger tip. The tip includes a series of frusto conical segments of decreasing cross-wise dimension from the base to the terminal end of the tip thereby defining a plurality of circumferentially extending, axially spaced radially directed shoulders.
The piston pocket has a series of frusto conical pocket sections decreasing in size from the open end thereof to define a plurality of circumferentially extending axially spaced, radially directed, flexible lips. Upon assembly of the tip in the piston pocket, the lips deflect to permit seating of the tip therein and then engage behind the radial shoulders to lock the parts together.

REFERENCES:
patent: 2473733 (1949-06-01), Smith
patent: 2495027 (1950-01-01), Smith
patent: 3098482 (1963-07-01), O'Sullivan
patent: 3831601 (1974-08-01), Kessell

Affiliated with

Also associated with

Rating

Plunger rod and piston for a syringe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plunger rod and piston for a syringe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plunger rod and piston for a syringe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2067106