Apparatus for hydrostatic pressure testing of tubular products
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 3, 1995
Grant Date -
N/A
app pub date -
Jul 29, 1993
filing date -
Jul 29, 1993
priority date (Note) -
Expired
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
An apparatus for hydrostatic pressure testing of tubular products that enables short segments of the tubular product to be individually tested under conditions simulating a capped tube hydrostatic test. The apparatus includes a first seal bladder and gripper member assembly connected to a second seal bladder and gripper member assembly by a connecting member that allows relative axial movement between the two assemblies. A fluid outlet port is provided in the connecting member to introduce pressurized fluid into the short segment of the tubular product between the seal bladders of the two assemblies. Since the first seal bladder and gripper member assembly is axially movable relative to the second seal bladder and gripper member assembly, an axial stress as well as a hoop stress will be induced in the tubular product during testing.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
COMBUSTION ENGINEERING INC | 1000 PROSPECT HILL ROAD POST OFFICE BOX 500 WINDSOR CONNECTICUT 06095-0500 U S A |
International Classification(s)

- 1993 Application Filing Year
- G01M Class
- 308 Applications Filed
- 124 Patents Issued To-Date
- 40.26 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Allen, Bruce F | Granby, CT | 8 | 43 |
# of filed Patents : 8 Total Citations : 43 | |||
Crick, David L | Chattanooga, TN | 6 | 37 |
# of filed Patents : 6 Total Citations : 37 | |||
DePeau, Alfred D | Somers, CT | 2 | 7 |
# of filed Patents : 2 Total Citations : 7 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 5 Citation Count
- G01M Class
- 5.56 % this patent is cited more than
- 30 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Jan 26, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jan 03, 1999 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jan 03, 1999 |
Jan 03, 1999 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jan 03, 1995 | I | Issuance | |
Jul 29, 1993 | F | Filing | |
Jul 29, 1993 | PD | Priority Date | |
Jul 19, 1993 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ALLEN, BRUCE FREDERICK;DEPEAU, ALFRED DWIGHT;REEL/FRAME:006659/0486 Owner name: COMBUSTION ENGINEERING, INC., CONNECTICUT Effective Date: Jul 19, 1993 |

Matter Detail

Renewals Detail
