Patent US3050667A successfully refreshed from Google Patents.
Patent US3580269A successfully refreshed from Google Patents.
US3580269A
Expired / Lapsed
US
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Debrisless tap valve with backraked piercing element
Assignee: Sealed Unit Parts Co Inc
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Filing: 1969-04-29
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Granted: 1971-05-25
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Expires: 1989-04-29
Abstract
Abstract A tap valve comprises a valve body having a portion to mate with a pipeline or container to be tapped. Within the body is a valve chamber having a passageway for communication with a fluid source or sink. There is also an opening in a mating face portion of the body for communication with the pipeline or container. A threaded passageway supports a valve stem member in the body which is floatingly coupled to a piercing element. The coupling is such that axial translational motion is transmitted by the stem member to the piercing element whereas the stem member is free to rotate with respect to the piercing element. The piercing element is a truncated cylinder with a backrake along its apex edge.
Inventors
- 👤 Henry Ehrens
- 👤 Sidney Weiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:13
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/04; F16L41/06; F16L41/065; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123; Y10T408/00; Y10T408/89; Y10T83/00; Y10T83/929; Y10T83/9314
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
115 words
A tap valve for use with a fluid carrying member comprising a valve body having an engaging face provided with an opening and contoured to rest matingly with a portion of the fluid-carrying member and be connected thereto, a valve chamber in said body, a fluid passageway in said valve body communicating with said valve chamber, a valve stem member movably supported by said valve body, a piercing element passable through the opening in said engaging face, said piercing element having a backraked cutting edge and means for floatingly connecting said piercing element to said valve stem member whereby the movement of said valve stem member constrains only the axial movement of said piercing element.
Claim 2
Dependent Claim
115 words
A tap valve for use with a fluid carrying member comprising a valve body having an engaging face provided with an opening and contoured to rest matingly with a portion of the fluid-carrying member and be connected thereto, a valve chamber in said body, a fluid passageway in said valve body communicating with said valve chamber, a valve stem member movably supported by said valve body, a piercing element passable through the opening in said engaging face, said piercing element having a backraked cutting edge and means for floatingly connecting said piercing element to said valve stem member whereby the movement of said valve stem member constrains only the axial movement of said piercing element.
Claim 3
Dependent Claim
18 words
The tap valve of claim 1 wherein said piercing element is in the form of a truncated cylinder.
Claim 4
Dependent Claim
18 words
The tap valve of claim 2 wherein said backrake is along the apex edge of said truncated cylinder.
Claim 5
Dependent Claim
33 words
The tap valve of claim 3 wherein said backrake starts at the forward point of the apex edge and taperingly extends in both directions therefrom to the centerline points of the apex edge.
References Cited (Backward Citations)
US3162211A
Cited
US3495615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |