Patent US3593732A successfully refreshed from Google Patents.
US3593732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tee joint with flow-diverting valve
Assignee: Individual
•
Filing: 1969-03-12
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Granted: 1971-07-20
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Expires: 1989-03-12
Abstract
Abstract A tee joint is provided with a flexible elongated tongue that normally covers the transverse arm of the tee joint and is fixed inside the tee joint at a point near the junction of the transverse arm and one of the in-line arms. The flexible tongue is part of a rubber insert having two transverse tabs that are bonded to the interior surface around the perimeter the one inline arm of the tee joint.
Inventors
- 👤 Ernest A Holscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:12
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/16; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2567; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888; Y10T137/7891
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
163 words
A pipe fitting comprising; a tee joint having a first in-line arm, a second in-line arm, and a transverse arm; and a flexible tongue secured to the inside of the tee joint in the first in-line arm near the junction wiTh the transverse arm such that in the absence of externally applied stresses the tongue covers the opening of the transverse arm, when fluid flows into the tee joint from the transverse arm, the tongue pivots about the point where the tongue is secured to seal the first in-line arm, and when fluid flows into the tee joint from the first in-line arm, the tongue seals the opening of the transverse arm, the flexible tongue being elongated and secured to the inside of the tee joint by a pair of tabs attached to one end of the flexible tongue such that they extend transverse from its length, the tabs being disposed around the perimeter of the interior surface of the first in-line arm.
Claim 2
Dependent Claim
163 words
A pipe fitting comprising; a tee joint having a first in-line arm, a second in-line arm, and a transverse arm; and a flexible tongue secured to the inside of the tee joint in the first in-line arm near the junction wiTh the transverse arm such that in the absence of externally applied stresses the tongue covers the opening of the transverse arm, when fluid flows into the tee joint from the transverse arm, the tongue pivots about the point where the tongue is secured to seal the first in-line arm, and when fluid flows into the tee joint from the first in-line arm, the tongue seals the opening of the transverse arm, the flexible tongue being elongated and secured to the inside of the tee joint by a pair of tabs attached to one end of the flexible tongue such that they extend transverse from its length, the tabs being disposed around the perimeter of the interior surface of the first in-line arm.
Claim 3
Dependent Claim
21 words
The pipe fitting of claim 1, in which the tabs are bonded to the interior surface of the first in-line arm.
Claim 4
Dependent Claim
53 words
The pipe fitting of claim 2, in which the tongue and the tabs are formed from a single piece of flexible material such that the disposition of the tabs around the perimeter of the interior surface of the first in-line arm bows the tongue to conform to the curvature of the in-line arms.
Claim 5
Dependent Claim
22 words
The pipe fitting of claim 1, in which the tongue and the tabs are formed from a single piece of flexible material.
Claim 6
Dependent Claim
20 words
The combination of claim 4, in which the tongue is bowed to conform to the curvature of the in-line arms.
Claim 7
Dependent Claim
21 words
The pipe fitting of claim 1, in which the tongue is bowed to conform to the curvature of the in-line arms.
Claim 8
Dependent Claim
114 words
A pipe fitting comprising: a tee joint having a first in-line arm, a second in-line arm, and a transverse arm; and a flexible tongue secured to the inside of the tee joint such that it normally covers the opening of the transverse arm and is capable of pivoting about a point near the junction of the first in-line arm and the transverse arm, the flexible tongue being elongated and secured to the inside of the tee joint by a pair of tabs attached to one end of the flexible tongue such that they extend transverse from its length, the tabs being disposed around the perimeter of the interior surface of the first in-line arm.
Claim 9
Dependent Claim
114 words
A pipe fitting comprising: a tee joint having a first in-line arm, a second in-line arm, and a transverse arm; and a flexible tongue secured to the inside of the tee joint such that it normally covers the opening of the transverse arm and is capable of pivoting about a point near the junction of the first in-line arm and the transverse arm, the flexible tongue being elongated and secured to the inside of the tee joint by a pair of tabs attached to one end of the flexible tongue such that they extend transverse from its length, the tabs being disposed around the perimeter of the interior surface of the first in-line arm.
Claim 10
Dependent Claim
22 words
The pipe fitting of claim 7, in which the tongue and the tabs are formed from a single piece of flexible material.
Claim 11
Dependent Claim
21 words
The pipe fitting of claim 8, in which the tongue is bowed to conform to the curvature of the in-line arms.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |