Patent US4196086A successfully refreshed from Google Patents.
US4196086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter-purifier cartridge
Assignee: Individual
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Filing: 1979-02-02
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Granted: 1980-04-01
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Expires: 1999-02-02
Abstract
Abstract A filter-purifier cartridge arranged so that a manually separable and manually replaceable hollow cylindrical purifier element is axially positioned and coupled to one end section of a tubular filter, the purifying medium within said purifier element contained between two removable and replaceable foraminous members, said members being optionally capable of manual removal and manual replacement; the filtering efficiency offered by radial flow through the wall of the filter element combined with an axial flow within the purifier element.
Inventors
- 👤 Isadore Turetsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:35
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/001; C02F1/003; B; B01; B01D; B01D29/00; B01D29/01; B01D29/11; B01D29/117; B01D29/50; B01D29/56; B01D29/58; C02F2201/00; C02F2201/002; C02F2201/006
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
168 words
A filter-purifier cartridge for fluids, comprising: A manually separable and manually replaceable hollow cylindrical purifier element having inlet and outlet means, a top wall at one end, said inlet means at the other end, a concentric passage through said top wall, said passage being the discharge port of said cartridge, a frictional seal retained by said top wall and encircling said passage, purifying medium disposed between two separable and replaceable foraminous members within the hollow cylinder of said purifier element; said purifier element disposed axially and having its inlet end section coupled to one end section of a tubular filter, a closure disposed at the uncoupled end of said tubular filter; a chamber intermediate said concentric passage and one foraminous member within the hollow cylinder of said purifier element; the fluid stream within the hollow core of said tubular filter communicating with the concentric passage through said top wall via the interior of said purifier element wherein said purifying medium is contained, and said chamber, through said couple.
Claim 2
Dependent Claim
168 words
A filter-purifier cartridge for fluids, comprising: A manually separable and manually replaceable hollow cylindrical purifier element having inlet and outlet means, a top wall at one end, said inlet means at the other end, a concentric passage through said top wall, said passage being the discharge port of said cartridge, a frictional seal retained by said top wall and encircling said passage, purifying medium disposed between two separable and replaceable foraminous members within the hollow cylinder of said purifier element; said purifier element disposed axially and having its inlet end section coupled to one end section of a tubular filter, a closure disposed at the uncoupled end of said tubular filter; a chamber intermediate said concentric passage and one foraminous member within the hollow cylinder of said purifier element; the fluid stream within the hollow core of said tubular filter communicating with the concentric passage through said top wall via the interior of said purifier element wherein said purifying medium is contained, and said chamber, through said couple.
Claim 3
Dependent Claim
170 words
A filter-purifier cartridge for fluids, comprising: a manually separable and manually replaceable hollow cylindrical purifier element having inlet and outlet means, an integral top wall at one end, said inlet means at the other end, a concentric passage through said top wall, said passage being the discharge port of said cartridge, a frictional seal retained by said top wall and encircling said passage, purifying medium disposed intermediate two manually separable and manually replaceable foraminous members within the hollow cylinder of said purifier element; said purifier element positioned axially and having its inlet end section coupled to one end section of a tubular filter, a closure disposed at the uncoupled end of said tubular filter, a chamber existing between said concentric passage and one foraminous member within the hollow cylinder of said purifier element; the fluid stream through the hollow core of said tubular filter communicating with the concentric passage through said top wall via the hollow interior of said purifier element wherein said purifying medium is contained, and said chamber.
Claim 4
Dependent Claim
170 words
A filter-purifier cartridge for fluids, comprising: a manually separable and manually replaceable hollow cylindrical purifier element having inlet and outlet means, an integral top wall at one end, said inlet means at the other end, a concentric passage through said top wall, said passage being the discharge port of said cartridge, a frictional seal retained by said top wall and encircling said passage, purifying medium disposed intermediate two manually separable and manually replaceable foraminous members within the hollow cylinder of said purifier element; said purifier element positioned axially and having its inlet end section coupled to one end section of a tubular filter, a closure disposed at the uncoupled end of said tubular filter, a chamber existing between said concentric passage and one foraminous member within the hollow cylinder of said purifier element; the fluid stream through the hollow core of said tubular filter communicating with the concentric passage through said top wall via the hollow interior of said purifier element wherein said purifying medium is contained, and said chamber.
Claim 5
Dependent Claim
25 words
A filter-purifier cartridge as claimed in claim 2, in which the fluid stream through the hollow core of said tubular filter flows through said couple.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |