US4722221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable hydraulic tester
Assignee: Individual
•
Filing: 1986-06-02
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Granted: 1988-02-02
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Expires: 2006-06-02
Abstract
Abstract Pressure testing apparatus including a flange locating assembly having a tester flange plate pivotally mounted to a frame, thus enabling presentation of the tester flange plate in at least two angular dispositions to a flange of an object to be tested by a fluid to issue under pressure from the tester flange plate.
Inventors
- 👤 Bruce P. Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:59
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
Pressure testing apparatus, comprising: a stable frame capable of being supported on a substantially flat support surface; a flange locating assembly pivotally mounted to said frame about a pivot axis, said flange locating assembly having a surface and a pressurized fluid egress port over which a flange of an object to be tested can be mounted in a substantially fluid tight manner with respect to said surface; pivotal means provided on said frame for pivotally mounting said flange locating assembly to said frame; fluid supply means mounted on said frame for providing fluid under pressure or for receiving fluid under pressure; means for providing a fluid tight communication of pressurized fluid between said fluid supply means and said egress port; said flange locating assembly being pivotable relative to said frame between at least two angular dispositions, whereby said flange locating assembly is connectable to said flange of said object to be tested under fluid pressure from said egress port in at least one of said at least two angular dispositions.
Claim 2
Dependent Claim
170 words
Pressure testing apparatus, comprising: a stable frame capable of being supported on a substantially flat support surface; a flange locating assembly pivotally mounted to said frame about a pivot axis, said flange locating assembly having a surface and a pressurized fluid egress port over which a flange of an object to be tested can be mounted in a substantially fluid tight manner with respect to said surface; pivotal means provided on said frame for pivotally mounting said flange locating assembly to said frame; fluid supply means mounted on said frame for providing fluid under pressure or for receiving fluid under pressure; means for providing a fluid tight communication of pressurized fluid between said fluid supply means and said egress port; said flange locating assembly being pivotable relative to said frame between at least two angular dispositions, whereby said flange locating assembly is connectable to said flange of said object to be tested under fluid pressure from said egress port in at least one of said at least two angular dispositions.
Claim 3
Dependent Claim
16 words
Apparatus as claimed in claim 1, wherein said fluid supply means includes a calibration gauge means.
Claim 4
Dependent Claim
26 words
Apparatus as claimed in claim 1 or 2, wherein said flange locating assembly is capable of supporting said flange of said object in a horizontal disposition.
Claim 5
Dependent Claim
26 words
Apparatus as claimed in claim 1 or 2, wherein said flange locating assembly is capable of supporting said flange of said object in a vertical disposition.
Claim 6
Dependent Claim
48 words
Apparatus as claimed in claim 1, wherein said flange locating assembly includes a radially slotted member having radial slots not extending to said egress port, said radial slots allowing bolt means to project therethrough and through bolt holes included in said flange of said object to be tested.
Claim 7
Dependent Claim
28 words
Apparatus as claimed in claim 1, wherein packing means comprising adaptor plates are provided for interposition between said surface and said flange of said object to be tested.
Claim 8
Dependent Claim
27 words
Apparatus as claimed in claim 6, wherein said packing means includes at least one sealing "O" ring disposed about a port in alignment with said egress port.
Claim 9
Dependent Claim
22 words
Apparatus as claimed in claim 1, wherein said fluid supply means comprises a hydraulic pump and reservoir means carried by said frame.
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) | 1991-02-01 | 1991-08-03 | 1992-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-01 | 1995-08-03 | 1996-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-01 | 1999-08-03 | 2000-02-02 | $7700.00 | Window Closed / Lapsed |