Patent US3768233A successfully refreshed from Google Patents.
US3768233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter construction
Assignee: Individual
•
Filing: 1971-12-30
•
Granted: 1973-10-30
•
Expires: 1991-12-30
Abstract
Abstract A filter employing molded plastic fibrous elements which may be impregnated with magnetic metallic particles. The fibrous elements are integrally molded as part of a two piece assembly which may be easily taken apart for cleaning and reassembled.
Inventors
- 👤 J Mateson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:19
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; Y; Y10; Y10S; Y10S55/00; Y10S55/24; Y10S55/31; Y10S55/39
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
A filter comprising an intake assembly and a discharge assembly, said intake assembly comprising a front housing having an inlet opening therein, baffle plate means in said front housing for directing intake fluid in a circuitous path, and a first plurality of molded fibrous elements integral with said baffle plate and extending into said circuitous path, said discharge assembly including a rear housing having integral therewith a second plurality of molded fibrous elements, said rear housing having a discharge opening therein, said second plurality of elements extending into the fluid path between said first plurality of elements and said discharge opening.
Claim 2
Dependent Claim
101 words
A filter comprising an intake assembly and a discharge assembly, said intake assembly comprising a front housing having an inlet opening therein, baffle plate means in said front housing for directing intake fluid in a circuitous path, and a first plurality of molded fibrous elements integral with said baffle plate and extending into said circuitous path, said discharge assembly including a rear housing having integral therewith a second plurality of molded fibrous elements, said rear housing having a discharge opening therein, said second plurality of elements extending into the fluid path between said first plurality of elements and said discharge opening.
Claim 3
Dependent Claim
24 words
A filter according to claim 1, wherein said first plurality of fibrous elements are interengaged between and with said second plurality of fibrous elements.
Claim 4
Dependent Claim
30 words
A filter according to claim 2 wherein said front housing and said rear housing cooperate to form a rectangular box imperforate except for said inlet opening and said discharge opening.
Claim 5
Dependent Claim
16 words
A filter according to claim 2, wherein said elements are molded of a synthetic plastic material.
Claim 6
Dependent Claim
15 words
A filter according to claim 4, wherein said elements have a magnetic metallic-powder embedded therein.
Claim 7
Dependent Claim
23 words
A filter according to claim 4, including magnetic means embedded in said synthetic plastic material for providing a magnetic charge on said filter.
Claim 8
Dependent Claim
18 words
A filter according to claim 1, wherein said baffle plate has a plurality of vanes extending normal thereto.
Claim 9
Dependent Claim
14 words
A filter according to claim 1 wherein said vanes are arranged in parallel rows.
Claim 10
Dependent Claim
13 words
A filter according to claim 1, wherein said vanes are arcuate in shape.
References Cited (Backward Citations)
US426883A
Cited
CA594997A
Cited
US923547A
Cited
FR684875A
Cited
FR41533E
Cited
US2027906A
Cited
FR944991A
Cited
US2839153A
Cited
US2945557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |