US4022243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frost proof sillcock
Assignee: Nibco Inc
•
Filing: 1973-06-01
•
Granted: 1977-05-10
•
Expires: 1993-06-01
Abstract
Abstract A frost proof sillcock having an outer section with a fluid chamber therein and a discharge opening, a round tubular body connected to the external section and communicating with the chamber, and a seat end section of substantially the same diameter as the tubular body connected integrally with the body to form a substantially even external surface between the body and the section. The seat end section contains a valve seat and a plurality of thread segments, and a stem extends through the chamber in the external section and through the body, and contains a valve element on the inner end thereof for seating on the seat. A hand wheel for rotating the stem to seat and unseat the valve element is secured to the outer end of the stem.
Inventors
- 👤 Robert B. Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:37
CPC Classifications
E; E03; E03B; E03B7/00; E03B7/09; E03B7/10; E03B7/12; E03B9/00; E03B9/02; E03B9/025; F; F16; F16K; F16K31/00; F16K31/44; F16K31/50; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/698
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
159 words
A frost proof sillcock comprising an external section having a fluid chamber therein and a discharge opening, and round tubular body connected at one end to said external section and communicating with said chamber, a cylindrical seat end section connected to the other end of said tubular body and having a cup with smooth inner and outer surfaces for a soldered or brazed pipe joint, said seat end section being joined integrally with said body to form a metal joint therebetween having a substantially higher melting point than a soldered or brazed joint in said cup and containing an internal flange having an opening therethrough, and a valve seat on said flange in axial alignment with said tubular body, and said seat end section further having the same external diameter as said tubular body and being joined to the end surface of said body of electric weld to form a smooth, continuous surface between said body and end section.
Claim 2
Dependent Claim
159 words
A frost proof sillcock comprising an external section having a fluid chamber therein and a discharge opening, and round tubular body connected at one end to said external section and communicating with said chamber, a cylindrical seat end section connected to the other end of said tubular body and having a cup with smooth inner and outer surfaces for a soldered or brazed pipe joint, said seat end section being joined integrally with said body to form a metal joint therebetween having a substantially higher melting point than a soldered or brazed joint in said cup and containing an internal flange having an opening therethrough, and a valve seat on said flange in axial alignment with said tubular body, and said seat end section further having the same external diameter as said tubular body and being joined to the end surface of said body of electric weld to form a smooth, continuous surface between said body and end section.
Claim 3
Dependent Claim
56 words
A frost proof sillcock as defined in claim 1 in which said seat end section includes an internal wall having a plurality of thread segments thereon, a stem extending axially through said body, a valve element secured to the inner end of said stem and hving threads thereon for engaging the threads on said end section.
Claim 4
Dependent Claim
46 words
A frost proof sillcock as defined in claim 2 in which said stem extends through the chamber in said external section and outwardly therefrom, and a hand wheel on the outer end of said stem for rotating said stem to seat and unseat said valve element.
Claim 5
Dependent Claim
43 words
A frost proof sillcock as defined in claim 1 in which said external section is provided with a flange on its inner edge for engaging a wall surface, and having a threaded external surface for receiving a hose coupling around said discharge opening.
Claim 6
Dependent Claim
43 words
A frost proof sillcock as defined in claim 3 in which said external section is provided with a flange on its inner edge for engaging a wall surface, and having a threaded external surface for receiving a hose coupling around said discharge opening.
Claim 7
Dependent Claim
39 words
A frost proof sillcock as defined in claim 1 in which said seat end section is provided with a cup for receiving the end of a water pipe, said cup communicating through said end section with said tubular body.
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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |