Title:
１つまたは複数のらせん状に延びるフィーチャを有する蛇腹プランジャ、そのような蛇腹プランジャを含むポンプ、および関連する方法
Document Type and Number:
Japanese Patent JP5600326
Kind Code:
B2
Abstract:
A helical pump system includes at least one pressure chamber at least partially defined by a helical bellows plunger comprised of a tubular body, a closed front portion, an open rear portion, and at least one contour extending continuously as a helix, longitudinally from proximate the front portion to proximate the rear portion. Methods for forming a helical bellows plunger include molding the helical bellows plunger using a mold core comprising a helically extending exterior contour and a cooperatively associated mold cavity comprising a helically extending interior contour of substantially a same pitch and configured to align with the helically extending exterior contour of the mold core, introducing a molding material therebetween, curing the molding material, and unscrewing the cured molding material from the mold core.
Inventors:
Tom M Simmonds
John M Simmonds
David M Simmonds
John M Simmonds
David M Simmonds
Application Number:
JP2011545460A
Publication Date:
October 01, 2014
Filing Date:
January 08, 2010
Export Citation:
Assignee:
Tom M Simmonds
John M Simmonds
David M Simmonds
John M Simmonds
David M Simmonds
International Classes:
F16J15/52; F04B43/10; F16J3/04
Attorney, Agent or Firm:
Ono Shinjiro
Kobayashi 泰
Akio Chiba
Hiroyuki Tomita
Koichi Kushida
Kobayashi 泰
Akio Chiba
Hiroyuki Tomita
Koichi Kushida