US5089108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strainer
Assignee: Individual
•
Filing: 1990-06-25
•
Granted: 1992-02-18
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Expires: 2010-06-25
Abstract
Abstract The Strainer has a pipe with a multiplicity of holes, and surrounded by a mass of stones or marbles, confined within a double nylon netting. The pipe confines a one-way check valve. The mass of stones or marbles serves a dual purpose: weighting of the Strainer, and ancillary filtering of the fluid. The stones or marbles are of approximately three-quarters of an inch in diameter and, consequently, they have a multitudinous number of interstices which are not less than three-sixteenth of an inch in width, length and depth. These present virtually unlimited pathways, of gross dimensions, for the extraction of water.
Inventors
- 👤 Robert M. Small
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:48
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/02; B01D24/04; B01D24/08; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/50; B01D29/56; B01D29/58
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
45 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, the same means both; (a) weighting said strainer, and (b) filtering fluids.
Claim 2
Dependent Claim
45 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, the same means both; (a) weighting said strainer, and (b) filtering fluids.
Claim 3
Dependent Claim
14 words
A strainer, according to claim 1, wherein: said weighting and filtering means comprises aggregate.
Claim 4
Dependent Claim
13 words
A strainer, according to claim 2, wherein: said aggregate comprises hard, inert material.
Claim 5
Dependent Claim
22 words
A strainer, according to claim 1, further including: a centrally apertured plate; and wherein said pipe is in penetration of said plate.
Claim 6
Dependent Claim
20 words
A strainer, according to claim 1, wherein: said pipe, at the end thereof opposite said one end, is externally threaded.
Claim 7
Dependent Claim
20 words
A strainer, according to claim 1, wherein: said pipe has an inside diameter of approximately one and a half inch.
Claim 8
Dependent Claim
71 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, for (a) weighting said strainer, and (b) filtering fluids; wherein said weighting and filtering means comprises a mass of stones; and each of said stones is substantially rounded, and is of approximately three-quarters of an inch in diameter.
Claim 9
Dependent Claim
71 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, for (a) weighting said strainer, and (b) filtering fluids; wherein said weighting and filtering means comprises a mass of stones; and each of said stones is substantially rounded, and is of approximately three-quarters of an inch in diameter.
Claim 10
Dependent Claim
70 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, for (a) weighting said strainer, and (b) filtering fluids; wherein said weighting and filtering means comprises a mass of marbles; and each of said marbles is rounded, and is of approximately three-quarters of an inch in diameter.
Claim 11
Dependent Claim
70 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, for (a) weighting said strainer, and (b) filtering fluids; wherein said weighting and filtering means comprises a mass of marbles; and each of said marbles is rounded, and is of approximately three-quarters of an inch in diameter.
Claim 12
Dependent Claim
79 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, the same means both; (a) weighting said strainer, and (b) filtering fluids; wherein said container comprises nylon net; and further including a grating coupled to the termination of said one end of said pipe; and a check valve confined within said one end of said pipe.
Claim 13
Dependent Claim
79 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, the same means both; (a) weighting said strainer, and (b) filtering fluids; wherein said container comprises nylon net; and further including a grating coupled to the termination of said one end of said pipe; and a check valve confined within said one end of said pipe.
Claim 14
Dependent Claim
25 words
A strainer, according to claim 9, wherein: a portion of said pipe, immediately adjacent to said termination thereof, has a multiplicity of holes formed therein.
Claim 15
Dependent Claim
59 words
A strainer, comprising: a compliant foraminous container a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, for (a) weighting said strainer, and (b) filtering fluids; wherein said weighting and filtering means comprises aggregate; and said aggregate, in total, weighs approximately ten pounds.
Claim 16
Dependent Claim
59 words
A strainer, comprising: a compliant foraminous container a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, for (a) weighting said strainer, and (b) filtering fluids; wherein said weighting and filtering means comprises aggregate; and said aggregate, in total, weighs approximately ten pounds.
Claim 17
Dependent Claim
66 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, for (a) weighting said strainer, and (b) filtering fluids; wherein said weighting and filtering means comprises aggregate; and said aggregate has interstices of not less than approximately one-eighth of an inch in width.
Claim 18
Dependent Claim
66 words
A strainer, comprising: a compliant foraminous container; a pipe having one end thereof confined, generally centrally, in said container; and means surrounding said one end of said pipe, and confined within said container, for (a) weighting said strainer, and (b) filtering fluids; wherein said weighting and filtering means comprises aggregate; and said aggregate has interstices of not less than approximately one-eighth of an inch in width.
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) | 1995-02-17 | 1995-08-19 | 1996-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-17 | 1999-08-19 | 2000-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-17 | 2003-08-19 | 2004-02-18 | $7700.00 | Window Closed / Lapsed |