Patent US2009399A successfully refreshed from Google Patents.
Patent US4633195A successfully refreshed from Google Patents.
Patent EP1143232A1 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP1143232A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Monitoring filter insertion

Assignee: Mann and Hummel GmbH
•
Filing: 2001-03-22
•
Granted: —
•
Expires: 2021-03-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Differential pressure measuring arrangement (10) comprises an evaluating unit (19) for determining the differential pressures which are lower than the lowest reference pressure value. The lowest reference pressure value is lower than the differential pressure on a new filter element (14). An Independent claim is also included for a process for determining the differential pressure using the differential pressure measuring arrangement. Preferred Features: The lowest reference pressure value is formed by a mechanical adjusting unit. The differential pressure measuring arrangement is arranged in the pipe system (11) of an I.C. engine.

Inventors

  • 👤 Bertram Bartelt

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 14:29
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/14; B01D35/143; B01D37/00; B01D37/04; B01D37/046; F; F02; F02M; F02M35/00; F02M35/02; F02M35/08; F02M35/09

Claims Analysis

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

References Cited (Backward Citations)

AT392158B Cited
US5429649A Cited
US5606311A Cited
US5774056A 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