US3603340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain relief valve
Assignee: Individual
•
Filing: 1969-06-24
•
Granted: 1971-09-07
•
Expires: 1989-06-24
Abstract
Abstract A drain relief valve to prevent water or sewage from backing up into a house or other building and overflowing plumbing fixtures resulting from a clogged drain comprising, a one-way valve attached to the drain exteriorly of the building having a ball therein which is moved off the seat by increased fluid pressure in the drain pipe resulting from a clogged drain to allow excess fluid to flow through the one-way valve exteriorly of the house or building.
Inventors
- 👤 Leroy H Rousselet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:54
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/12; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/791; Y10T137/7911
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
A plumbing system including a lateral drain line and an extension of said lateral drain line extending outwardly of the wall of a building, a one-way valve attached to the extension, said one-way valve including a tubular member attached to the extension, a seat therein in the wall of the tubular member, a ball slightly larger than the seat, a cage surrounding the ball to guide the ball to and from the seat; and a closure member for closing the tubular member outwardly of the set.
Claim 2
Dependent Claim
86 words
A plumbing system including a lateral drain line and an extension of said lateral drain line extending outwardly of the wall of a building, a one-way valve attached to the extension, said one-way valve including a tubular member attached to the extension, a seat therein in the wall of the tubular member, a ball slightly larger than the seat, a cage surrounding the ball to guide the ball to and from the seat; and a closure member for closing the tubular member outwardly of the set.
Claim 3
Dependent Claim
24 words
The combination called for in claim 1 with the addition of a deflector member about the cage to deflect fluid toward a tubular member.
Claim 4
Dependent Claim
56 words
A one-way valve comprising a tubular member having a seat therein, a ball slightly larger than the seat; a cage surrounding the ball and secured to the tubular member to guide the ball to and from the seat; and means arranged about the cage for deflecting fluid flowing from the tubular member backwardly toward the seat.
Claim 5
Dependent Claim
56 words
A one-way valve comprising a tubular member having a seat therein, a ball slightly larger than the seat; a cage surrounding the ball and secured to the tubular member to guide the ball to and from the seat; and means arranged about the cage for deflecting fluid flowing from the tubular member backwardly toward the seat.
Claim 6
Dependent Claim
16 words
A valve as claimed in claim 3 in which the seat is of a rubberlike material.
Claim 7
Dependent Claim
24 words
A valve as claimed in claim 3 in which the tubular member has means for mounting same in an outlet from an enclosed space.
Claim 8
Dependent Claim
16 words
A valve as claimed in claim 3 in which the cover is secured to the cage.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |