US3593573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure end loading test apparatus
Assignee: Individual
•
Filing: 1969-03-24
•
Granted: 1971-07-20
•
Expires: 1989-03-24
Abstract
Abstract A fluid pressure end loading apparatus for axially testing cylinder specimens under compression loads. The apparatus includes a top plate having a fluid housing mounted thereon, a bottom plate also having a fluid housing mounted thereon and guide pins for guiding the movement of the top plate. The specimen to be tested is mounted between the two fluid housings and the load is applied until the specimen fractures.
Inventors
- 👤 Richard E Ely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:19
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/08; G01N3/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
75 words
An apparatus for applying a compressive test load on a columnar specimen''s end surfaces comprising; a pair of opposed load applying plates; a housing secured to each of said plates, each of said housings provided with a bore for receiving one end of the specimen; seals means disposed between the specimen ends and said bores; and, a fluid medium within said housings for applying the load to the ends of the specimen to be tested.
Claim 2
Independent Claim
75 words
An apparatus for applying a compressive test load on a columnar specimen''s end surfaces comprising; a pair of opposed load applying plates; a housing secured to each of said plates, each of said housings provided with a bore for receiving one end of the specimen; seals means disposed between the specimen ends and said bores; and, a fluid medium within said housings for applying the load to the ends of the specimen to be tested.
Claim 3
Dependent Claim
24 words
An apparatus as defined in claim 1 wherein said sealing means being resilient to transmit uniform unit loading to the ends of the specimen.
Claim 4
Dependent Claim
37 words
An apparatus as defined in claim 2 wherein one end of each of said housings is provided with a plug disposed in spaced relation with each of said seal means for retention of said fluid medium therebetween.
Claim 5
Dependent Claim
45 words
An apparatus as defined in claim 3 wherein said plugs include piston like surfaces extending into said housing, whereby said fluid medium is compressed between said pistonlike surfaces and said seal for establishing a substantially frictionless engagement of said load applying plates and the specimen.
Claim 6
Dependent Claim
34 words
An apparatus as defined in claim 4 wherein one of said plates has guide pins attached thereto and the other of said plates is provided with bearings for slidable cooperation with said guide pins.
References Cited (Backward Citations)
US2671339A
Cited
US3388588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |