Patent US5314172A successfully refreshed from Google Patents.
US5314172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure die cylinder and manifold system
Assignee: Barnes Group Inc
•
Filing: 1992-05-08
•
Granted: 1994-05-24
•
Expires: 2012-05-08
Abstract
Abstract A high pressure die cylinder and manifold system including a plurality of die cylinders mounted on a manifold. Each die cylinder includes a cylinder body in which a piston rod and a piston is positioned for limited relative movement with respect to the cylinder body. A cup shaped piston sealing ring is mounted on the cylinder body for engagement with the piston rod and a cup shaped sealing ring is mounted on the piston for engagement with the cylinder body. A lubricant metering ring is mounted on the piston intermediate the sealing rings and the piston has a lubricant chamber that communicates with circumferentially spaced openings in the lubricant metering ring for delivering lubricant to the exterior of the sealing ring. The cylinder body is provided with a radial annular flange, a cylindrical pilot surface and a portion below the pilot surface of the cylinder body is threaded by interengaging threads with an opening in the manifold so that the lower end of the gas cylinder communicates with high pressure gas within the manifold. The manifold is provided with an annular seat surrounding the opening into which the gas cylinder extends and a U-shaped cup manifold sealing ring is provided in the seat and held into position by engagement of the radial flange and a pilot surface on the cylinder body with the manifold.
Inventors
- 👤 Bernard J. Wallis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:29
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/32; F16F9/36; F16F9/365; F16F9/02; F16F9/0209; F16F9/0218; F16F9/362; F16F9/363
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
118 words
A die cylinder comprising a cylinder containing gas under pressure, a piston movable relative to said cylinder and urged outwardly by gaseous pressure outwardly relative to said cylinder, sealing means between said piston and said cylinder, a combined bearing member and lubricating metering ring on one of said cylinder and said piston and engaging the other of said cylinder and piston, a closed lubricant chamber associated with said combined bearing member and lubricating ring, said combined bearing member and lubricating ring having circumferentially spaced radial openings through said bearing member and lubricating ring for delivering lubricant from said chamber to the exterior of said combined bearing member and lubricating ring as the piston is reciprocated in said cylinder.
Claim 2
Dependent Claim
118 words
A die cylinder comprising a cylinder containing gas under pressure, a piston movable relative to said cylinder and urged outwardly by gaseous pressure outwardly relative to said cylinder, sealing means between said piston and said cylinder, a combined bearing member and lubricating metering ring on one of said cylinder and said piston and engaging the other of said cylinder and piston, a closed lubricant chamber associated with said combined bearing member and lubricating ring, said combined bearing member and lubricating ring having circumferentially spaced radial openings through said bearing member and lubricating ring for delivering lubricant from said chamber to the exterior of said combined bearing member and lubricating ring as the piston is reciprocated in said cylinder.
Claim 3
Dependent Claim
22 words
The die cylinder set forth in claim 1 wherein said combined bearing member and lubricating ring and chamber is on said piston.
Claim 4
Dependent Claim
66 words
The die cylinder set forth in claim 1 wherein said cylinder has a closed end and an open end and a sleeve in said open end, and said combined bearing member and lubricating ring are on said sleeve of said cylinder, said ring having said radial openings of said lubricating ring directing said lubricant from said chamber to a surface of said ring adjacent said piston.
Claim 5
Dependent Claim
26 words
The die cylinder set forth in any one of claims 1-3 wherein said die cylinder includes an opening adapted to provide communication to a pressurized manifold.
Claim 6
Dependent Claim
17 words
The die cylinder set forth in any one of claims 1-3 wherein the die cylinder is self-contained.
Claim 7
Dependent Claim
183 words
A high pressure die cylinder and manifold system comprising a plurality of gas filled die cylinders mounted on a manifold, each die cylinder including a cylinder body in which a piston rod is positioned for relative movement, a piston sealing ring mounted on the body for engagement with the piston rod, sealing ring means mounted on the piston for engagement with the cylinder body, said cylinder body being provided with a radial annular shoulder, said cylinderal body having a flange and a pilot surface below said flange engaging a complementary cylindrical surface on a manifold opening, a portion of the cylinder body below said pilot surface being threaded by interengaging threads with said opening in the manifold so that the lower end of the gas cylinder communicates with high pressure gas within the manifold, said manifold being provided with an annular seat surrounding the opening into which the gas cylinder extends, and a manifold sealing ring being provided in the annular seat and held into position by engagement of the radial flange on the cylinder body with the upper surface of the manifold.
Claim 8
Dependent Claim
183 words
A high pressure die cylinder and manifold system comprising a plurality of gas filled die cylinders mounted on a manifold, each die cylinder including a cylinder body in which a piston rod is positioned for relative movement, a piston sealing ring mounted on the body for engagement with the piston rod, sealing ring means mounted on the piston for engagement with the cylinder body, said cylinder body being provided with a radial annular shoulder, said cylinderal body having a flange and a pilot surface below said flange engaging a complementary cylindrical surface on a manifold opening, a portion of the cylinder body below said pilot surface being threaded by interengaging threads with said opening in the manifold so that the lower end of the gas cylinder communicates with high pressure gas within the manifold, said manifold being provided with an annular seat surrounding the opening into which the gas cylinder extends, and a manifold sealing ring being provided in the annular seat and held into position by engagement of the radial flange on the cylinder body with the upper surface of the manifold.
Claim 9
Dependent Claim
25 words
The high pressure die cylinder and manifold system set forth in claim 6 wherein said sealing ring means and sealing rings comprise cup sealing rings.
Claim 10
Dependent Claim
23 words
The high pressure die cylinder and manifold system set forth in claim 6 including lubricating means within said cylinder for lubricating said piston.
Claim 11
Dependent Claim
67 words
The high pressure die cylinder and manifold system set forth in claim 8 wherein said lubricating means comprises a lubricant bearing and metering ring mounted on the piston intermediate the sealing rings having circumferentially spaced radial openings, said piston having a closed lubricant chamber that communicates with said circumferentially spaced radial openings in the lubricant metering ring for delivering lubricant to the exterior of the sealing ring.
References Cited (Backward Citations)
GB194385A
Cited
US1768633A
Cited
US2364823A
Cited
US3947005A
Cited
US4005763A
Cited
US4044859A
Cited
US4076103A
Cited
US4154434A
Cited
US4342448A
Cited
US4529181A
Cited
US4583722A
Cited
US4572489A
Cited
US4628796A
Cited
US4741518A
Cited
US5086691A
Cited
US5172892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-23 | 1997-11-22 | 1998-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-23 | 2001-11-22 | 2002-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-23 | 2005-11-22 | 2006-05-24 | $7700.00 | Window Closed / Lapsed |