US5118417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-strength disposable tube filter
Assignee: Individual
•
Filing: 1990-01-25
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Granted: 1992-06-02
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Expires: 2010-01-25
Abstract
Abstract A high-strength disposable tube filter and associated mounting and fluid distribution head assembly with improved fatigue life and higher operating pressure capability. The tubular style filter housing being of a unitary construction utilizes metal tubing rather than the commonly used deep-drawn thin gauge malleable metal can having the closed end of the internal filtering element being the closed structural endcap, or cover, of the housing can. The specification discloses a new state of the art unitary construction method whereas major improvements over prior art will benefit the industry.
Inventors
- 👤 Richard J. Deibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:00
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/30; B01D2201/00; B01D2201/30; B01D2201/301; B01D2201/302
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
A high pressure quick change filter device comprising a tubular metal housing having first and second ends; a first metal endcap secured to the first end of the housing by the housing being folded inwardly over the periphery of the first end cap; a tubular filter element having first and second ends disposed within the housing, said tubular filter element first end bonded to said first end cap, said tubular filter element second end comprising a second metal end cap; and a threaded head assembly sealing said second metal housing end, said threaded head assembly comprising means defining inlet and outlet openings, and said outlet opening concentrically receiving said second metal end cap.
Claim 2
Dependent Claim
113 words
A high pressure quick change filter device comprising a tubular metal housing having first and second ends; a first metal endcap secured to the first end of the housing by the housing being folded inwardly over the periphery of the first end cap; a tubular filter element having first and second ends disposed within the housing, said tubular filter element first end bonded to said first end cap, said tubular filter element second end comprising a second metal end cap; and a threaded head assembly sealing said second metal housing end, said threaded head assembly comprising means defining inlet and outlet openings, and said outlet opening concentrically receiving said second metal end cap.
Claim 3
Dependent Claim
38 words
The filter device of claim 1, wherein the edge of the inwardly folded housing engages said first end cap in a recessed receiving area, and is held by a circumferential weld at the innermost edge of the housing.
Claim 4
Dependent Claim
21 words
The filter device of claim 1, wherein said outlet opening of said threaded head assembly means further includes a connector post.
Claim 5
Dependent Claim
32 words
The filter device of claim 1, wherein the tubular metal housing includes a threaded support collar concentrically arranged to enhance the sealing surface between the tubular metal housing and the head assembly.
Claim 6
Dependent Claim
39 words
The filter device of any one of the claims 1-4, wherein said filter element comprises a perforated core surrounded by a suitable filtering media, and said filter element is bonded to said first end cap by a potting material.
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) | 1995-06-02 | 1995-12-02 | 1996-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-02 | 1999-12-02 | 2000-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-02 | 2003-12-02 | 2004-06-02 | $7700.00 | Window Closed / Lapsed |