← Back to Patent Explorer
EP0103536A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Piston pump

Assignee: Individual
•
Filing: 1983-09-05
•
Granted: —
•
Expires: 2003-09-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Piston pump in which a piston (3) that can be moved in a cylinder (2) without being sealed against the cylinder wall (2) is arranged in such a way that by moving in a first direction (5) it displaces a medium to be conveyed in the conveying direction, this being associated with drawing-in from a reservoir, the piston speed being chosen so high that given the occurrence of a counterpressure the medium does not flow away completely through the gap (4) between the piston (3) and the cylinder (2), and in the case of movement in a direction (6) counter to the first direction the pump chamber is filled up again, at least partially, by a flow of medium through the gap between the piston (3) and the cylinder wall (2). <IMAGE>

Inventors

  • 👤 Joachim Dr. Rer. Nat. Nagel
  • 👤 Lothar Heinze
  • 👤 Max Prof. Dr.-Ing. Schaldach

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 01:31
CPC Classifications
F; F04; F04B; F04B19/00; F04B19/003; F04B17/00; F04B17/03; F04B17/04; F04B17/048

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US3348489A Cited
DE1653553A1 Cited
DE1915094A1 Cited
DE2144096A1 Cited
US3884125A Cited
DE2741348A1 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag