US3326535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and equipment for preparing mortar or concrete
Assignee: Individual
•
Filing: 1966-02-17
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Granted: 1967-06-20
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Expires: 1986-02-17
Abstract
No abstract record available.
Inventors
- 👤 Clercx Roger Johannus Henricus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:07
CPC Classifications
C; C04; C04B; C04B40/00; C04B40/0089; B; B28; B28C; B28C5/00; B28C5/08; B28C5/10; B28C5/12; B28C5/1223; B28C5/123; B28C5/18; B28C5/20; B28C5/38; B28C5/381; B28C5/386; B28C5/46; B28C5/462; C04B28/00; C04B28/02; E; E04; E04G; E04G21/00; E04G21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A METHOD OF PREPARING GAS-ENTRAINED MORTAR MASSES WITH INCREASED FLOW PROPERTIES SO THAT SAID MORTAR CAN BE PNEUMATICALLY FORCED THROUGH A PIPELINE TO THE SITE OF USE, COMPRISING: MIXING THE MORTAR COMPONETS INCLUDING CEMENT, SAND AND AGGREGATE WITH A MINIMUM AMOUNT OF WATER IN A PRESSURE-TIGHT MIXER DRUM UNTIL A UNIFORM LIQUIFIED CONSISTENCY SUITABLE FOR GASIFICATION IS ACHIEVED; INTRODUCING A GAS INTO THE LIQUIFIED MASS, SAID GAS BEING SELECTED FROM THE GROUP CONSISTING OF AIR AND AIR MIXED WITH CARBON DIOXIDE, UNDER PRESSURE TO FORM SMALL GAS BUBBLES WHICH UNIFORMLY FILL SPACES BETWEEN THE SAND AND AGGREGATE PARTICLES IN THE LIQUIFIED MORTAR MIXTURE; GRADUALLY INCREASING THE GAS PRESSURE WHILE AGITATING THE MORTAR MASS TO COMPRESS THE GAS BUBBLES AND TO PREVENT COLAESCENT OF THE GAS BUBBLES, THE GAS PRESSURE BEING INCREASED UP TO 3 ATMOSPHERES; AND DISCHARGEING SAID GASENTRAINED MORTAR MASS.
Claim 2
Independent Claim
141 words
A METHOD OF PREPARING GAS-ENTRAINED MORTAR MASSES WITH INCREASED FLOW PROPERTIES SO THAT SAID MORTAR CAN BE PNEUMATICALLY FORCED THROUGH A PIPELINE TO THE SITE OF USE, COMPRISING: MIXING THE MORTAR COMPONETS INCLUDING CEMENT, SAND AND AGGREGATE WITH A MINIMUM AMOUNT OF WATER IN A PRESSURE-TIGHT MIXER DRUM UNTIL A UNIFORM LIQUIFIED CONSISTENCY SUITABLE FOR GASIFICATION IS ACHIEVED; INTRODUCING A GAS INTO THE LIQUIFIED MASS, SAID GAS BEING SELECTED FROM THE GROUP CONSISTING OF AIR AND AIR MIXED WITH CARBON DIOXIDE, UNDER PRESSURE TO FORM SMALL GAS BUBBLES WHICH UNIFORMLY FILL SPACES BETWEEN THE SAND AND AGGREGATE PARTICLES IN THE LIQUIFIED MORTAR MIXTURE; GRADUALLY INCREASING THE GAS PRESSURE WHILE AGITATING THE MORTAR MASS TO COMPRESS THE GAS BUBBLES AND TO PREVENT COLAESCENT OF THE GAS BUBBLES, THE GAS PRESSURE BEING INCREASED UP TO 3 ATMOSPHERES; AND DISCHARGEING SAID GASENTRAINED MORTAR MASS.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |