US3077415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical rendering of surfaces and pointing of brick work
Assignee: Cementation Co Ltd
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Filing: 1960-06-22
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Granted: 1963-02-12
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Expires: 1980-06-22
Abstract
No abstract record available.
Inventors
- 👤 Ayres Douglas John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:44
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12; Y; Y10; Y10S; Y10S264/00; Y10S264/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD OF APPLYING MORTAR, COMPRISING THE STEPS OF INTRODUCING A WET FLOWABLE MORTAR UNDER PRESSURE INTO A CHAMBER OF AN AIR-OPERATED POINTING GUN, ACCELERATING THE SPEED OF FLOW OF THE MORTAR BY PASSING IT THROUGH A SINGLE CONICALLY REDUCED PASSAGE INTO A SMOOTH CYCLINDRICAL BORE OF UNIFORM DIAMETER, INTRODUCING A QUICK-SETTING AGENT INTO THE MIDDLE OF THE MORTAR FLOW WHERE IT IS BEING ACCELERATED BY THE CONICALLY REDUCED PASSAGE, THE SAID ACCELERATION OF FLOW DRAWING OUT THE SUPPLY OF QUICKSETTING AGENT INTO A NARROW STREAM PASSING ALONG THE AXIS OF THE SAID PASSAGE, PASSING SAID MORTAR AND QUICK-SETTING AGENT THROUGH SAID CYLINDRICAL BORE WITHOUT ANY SUBSTANTIAL TURBULENCE, AND THEN DIRECTING AN AUXILIARY AIR SUPPLY ON TO THE MORTAR SO AS TO SUBJECT IT TO TURBULENCE, THUS MIXING SAID MORTAR WITH THE SAID QUICK-SETTING AGENT, AND TO EJECT SAID MORTAR FROM THE GUN THROUGH A NOZZLE.
Claim 2
Independent Claim
146 words
A METHOD OF APPLYING MORTAR, COMPRISING THE STEPS OF INTRODUCING A WET FLOWABLE MORTAR UNDER PRESSURE INTO A CHAMBER OF AN AIR-OPERATED POINTING GUN, ACCELERATING THE SPEED OF FLOW OF THE MORTAR BY PASSING IT THROUGH A SINGLE CONICALLY REDUCED PASSAGE INTO A SMOOTH CYCLINDRICAL BORE OF UNIFORM DIAMETER, INTRODUCING A QUICK-SETTING AGENT INTO THE MIDDLE OF THE MORTAR FLOW WHERE IT IS BEING ACCELERATED BY THE CONICALLY REDUCED PASSAGE, THE SAID ACCELERATION OF FLOW DRAWING OUT THE SUPPLY OF QUICKSETTING AGENT INTO A NARROW STREAM PASSING ALONG THE AXIS OF THE SAID PASSAGE, PASSING SAID MORTAR AND QUICK-SETTING AGENT THROUGH SAID CYLINDRICAL BORE WITHOUT ANY SUBSTANTIAL TURBULENCE, AND THEN DIRECTING AN AUXILIARY AIR SUPPLY ON TO THE MORTAR SO AS TO SUBJECT IT TO TURBULENCE, THUS MIXING SAID MORTAR WITH THE SAID QUICK-SETTING AGENT, AND TO EJECT SAID MORTAR FROM THE GUN THROUGH A NOZZLE.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |