§
Luxuse
Patent Intelligence
Sign In
Patent EP0152670A2 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0152670A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Filter

Assignee: Suisaku Co Ltd
•
Filing: 1984-07-12
•
Granted: —
•
Expires: 2004-07-12
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract In a filter of the type in which at least part of a casing Is buried with its suction ports in pebbles spread inside a water tank in order to let the pebbles exhibit a filter operation and suction means is connected to the casing, the improvement wherein the filter casing consists of a suction portion buried in the pebbles together with its suction ports, and a purification portion connected to the suction portion and having the upper part thereof closed by a detachable lid, a filter material dividing the purification portion into a purification chamber and a non-purification chamber and held by a frame member is removably fitted into the purification portion, and the suction means is supported by the lid in such a manner as to face the interior of the purification chamber.

Inventors

  • 👤 Yonekichi Ogawa

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 23:32
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/26; A; A01; A01K; A01K63/00; A01K63/04; A01K63/045; B01D24/00; B01D24/02; B01D24/10; B01D24/14; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/23; B01D29/232; B01D29/50; B01D29/52; B01D29/54

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 98 words
A filter comprising: a casing having suction ports, at least part of the casing, and the suction ports, being covered with particulate matter; and a purification portion which is connected to the suction portion and whose upper part is closed by a detachable closure member; a filter material which is held by a frame member and adapted to divide the purification portion into first and second chambers, said filter material being removably inserted into the purification portion; and suction means supported by the closure member in such a manner as to face the interior of the first chamber.
Claim 2
Dependent Claim 98 words
A filter comprising: a casing having suction ports, at least part of the casing, and the suction ports, being covered with particulate matter; and a purification portion which is connected to the suction portion and whose upper part is closed by a detachable closure member; a filter material which is held by a frame member and adapted to divide the purification portion into first and second chambers, said filter material being removably inserted into the purification portion; and suction means supported by the closure member in such a manner as to face the interior of the first chamber.

References Cited (Backward Citations)

No citation records indexed.

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