US4681684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal septic tank fitting
Assignee: Plastic Tubing Industries Inc
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Filing: 1985-04-29
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Granted: 1987-07-21
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Expires: 2005-04-29
Abstract
Abstract A universal septic tank fitting useful as either an inlet sweep or an outlet tee includes a generally tubular member having first and second open ends with a portion of the tubular member adjacent the first end forming an angular bend so that the first end extends generally normal to the member. A tube adjacent the second end extends from the tubular member and in a direction generally opposite to the direction of the first end. A vent is provided along the outer periphery of the angular bend, and a removable closure over the vent is provided. In use, the first end is installed in the inlet wall of a septic tank elevated above the second end, and the closure is removed from over the vent. The same fitting may be used as an outlet tee by installing the extremity of the tube through the outlet wall of the septic tank, elevated with respect to the first end.
Inventors
- 👤 Michael D. Maroschak
- 👤 Frederick P. Atchley
- 👤 Douglas G. Everson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:08
CPC Classifications
E; E03; E03F; E03F11/00; C; C02; C02F; C02F1/00; C02F1/006
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
128 words
A universal septic tank fitting useful as either an inlet sweep or an outlet tee, said fitting comprising: a generally tubular member having a central axis; a first tube extending into said tubular member adjacent a first end thereof generally radial to said central axis, said first tube having an open end; a second tube extending into said tubular member adjacent a second end thereof and generally radial to said central axis, but in a radial direction generally different from the radial direction of said first tube, said second tube having an open end; first vent means adjacent said first end of said tubular member; second vent means adjacent said second end of said tubular member; and means for closing one of said first and second vent means.
Claim 2
Dependent Claim
128 words
A universal septic tank fitting useful as either an inlet sweep or an outlet tee, said fitting comprising: a generally tubular member having a central axis; a first tube extending into said tubular member adjacent a first end thereof generally radial to said central axis, said first tube having an open end; a second tube extending into said tubular member adjacent a second end thereof and generally radial to said central axis, but in a radial direction generally different from the radial direction of said first tube, said second tube having an open end; first vent means adjacent said first end of said tubular member; second vent means adjacent said second end of said tubular member; and means for closing one of said first and second vent means.
Claim 3
Dependent Claim
28 words
The universal fitting recited in claim 1 further comprising plural mating ribs extending about the outer periphery of the extremity of each of said first and second tubes.
Claim 4
Dependent Claim
27 words
The universal fitting recited in claim 2 wherein said tubular member, said first and second tubes and said mating ribs comprise a unitary body of molded plastic.
Claim 5
Dependent Claim
17 words
The universal fitting recited in claim 2 wherein said ribs are dimensioned to receive a pipe adaptor.
Claim 6
Dependent Claim
39 words
A universal fitting as recited in claim 1 further comprising an indicating means along the outer periphery of said tubular member for indicating that said first end is an inlet sweep and said second end is an outlet tee.
Claim 7
Dependent Claim
65 words
The universal fitting recited in claim 5 wherein said vent closing means comprises a molded cap over said first vent means, said cap being frangible to expose said first vent means when said first end is used as an inlet sweep, but said cap having sufficient structural strength to remain covering said first vent means when said second end is used as an outlet tee.
Claim 8
Dependent Claim
181 words
A universal septic tank fitting useful as either an inlet sweep or an outlet tee, said fitting comprising: a generally tubular member having first and second open ends; a portion of said tubular member adjacent said first end forming an angular bend such that said first end extends generally normal from the remaining portion of said tubular member; a tube adjacent said second end of said tubular member extending generally normal from said tubular member and in a direction generally opposite to the direction of said first end; a vent along the outer periphery of said angular bend; a removable closure over said vent; and wherein said fitting may be used as an inlet sweep for a septic tank by installating said first end through an inlet wall of a septic tank in an elevated position with respect to said second end and thereafter removing said vent closure; or alternatively, said fitting may be used as an outlet tee by installing said tube through an outlet wall of a septic tank in an elevated position with respect to said first end.
Claim 9
Dependent Claim
181 words
A universal septic tank fitting useful as either an inlet sweep or an outlet tee, said fitting comprising: a generally tubular member having first and second open ends; a portion of said tubular member adjacent said first end forming an angular bend such that said first end extends generally normal from the remaining portion of said tubular member; a tube adjacent said second end of said tubular member extending generally normal from said tubular member and in a direction generally opposite to the direction of said first end; a vent along the outer periphery of said angular bend; a removable closure over said vent; and wherein said fitting may be used as an inlet sweep for a septic tank by installating said first end through an inlet wall of a septic tank in an elevated position with respect to said second end and thereafter removing said vent closure; or alternatively, said fitting may be used as an outlet tee by installing said tube through an outlet wall of a septic tank in an elevated position with respect to said first end.
Claim 10
Dependent Claim
23 words
The universal fitting recited in claim 7 wherein said vent closure comprises a frangible portion of said tubular member molded over said vent.
Claim 11
Dependent Claim
21 words
The universal fitting recited in claim 7 wherein said tubular member and said tube comprise a unitary body of molded plastic.
Claim 12
Dependent Claim
27 words
The universal fitting recited in claim 7 further comprising plural mating ribs extending about the outer periphery of the extremity of said first end and said tube.
Claim 13
Dependent Claim
38 words
The universal fitting recited in claim 10 further comprising an indicating means along the outer periphery of said tubular member for indicating that said first end is an inlet sweep and said second end is an outlet tee.
Claim 14
Dependent Claim
27 words
The universal fitting recited in claim 11 wherein said tubular member, said first and second tubes and said mating ribs comprise a unitary body of molded plastic.
Claim 15
Dependent Claim
17 words
The universal fitting recited in claim 12 wherein said ribs are dimensioned to receive a pipe adaptor.
Claim 16
Dependent Claim
189 words
A universal septic tank fitting useful as either an inlet sweep or an outlet tee, said fitting comprising; a generally tubular member having first and second open ends; a portion of said tubular member adjacent said first end forming an angular bend such that said first end extends generally normal from the remaining portion of said tubular member; a tube adjacent said second end of said tubular member extending generally normal from said tubular member and in a direction generally opposite to the direction of said first end; a portion of said generally tubular member adjacent said first end and said angular bend being frangible so as to form a vent therein; and wherein said fitting may be used as an inlet sweep for a septic tank by installing said first end through an inlet wall of a septic tank in an elevated position with respect to said second end and thereafter forming said frangible vent or alternatively, said fitting may be used as an outlet tee by installing said tube through an outlet wall of a septic tank in an elevated position with respect to said first end.
Claim 17
Dependent Claim
189 words
A universal septic tank fitting useful as either an inlet sweep or an outlet tee, said fitting comprising; a generally tubular member having first and second open ends; a portion of said tubular member adjacent said first end forming an angular bend such that said first end extends generally normal from the remaining portion of said tubular member; a tube adjacent said second end of said tubular member extending generally normal from said tubular member and in a direction generally opposite to the direction of said first end; a portion of said generally tubular member adjacent said first end and said angular bend being frangible so as to form a vent therein; and wherein said fitting may be used as an inlet sweep for a septic tank by installing said first end through an inlet wall of a septic tank in an elevated position with respect to said second end and thereafter forming said frangible vent or alternatively, said fitting may be used as an outlet tee by installing said tube through an outlet wall of a septic tank in an elevated position with respect to said first end.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-20 | 1991-01-19 | 1991-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-20 | 1995-01-19 | 1995-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-20 | 1999-01-19 | 1999-07-21 | $7700.00 | Window Closed / Lapsed |