US3427874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incline dynamometer
Assignee: Bacharach Instrument Co
•
Filing: 1967-01-10
•
Granted: 1969-02-18
•
Expires: 1987-01-10
Abstract
No abstract record available.
Inventors
- 👤 William A Munroe
- 👤 Frederick B Kruger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:15
CPC Classifications
G; G01; G01M; G01M15/00; G01M15/02; G01M15/04; G01M15/10; G01M15/102; G01N; G01N1/00; G01N1/02; G01N1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
PORTABLE APPARATUS FOR USE UPON A ROAD SURFACE TO SIMULATE PRE-DETERMINED LOADING CONDITIONS OF AN INTERNAL COMBUSTION ENGINE MOVING THE VEHICLE THEREOVER FOR OBTAINING SAMPLES OF THE ENGINE EXHAUST GASES FOR DETERMINATION OF SMOKE DENSITY AND OTHER AIR-POLLUTING GASES AND VAPORS THEREIN, COMPRISING. (A) RAMP MEANS HAVING A FLAT SURFACE ENGAGING BOTTOM FACE AND AN UPWARDLY INCLINED TOP FACE OVER WHICH A WHEEL OF THE VEHICLE IS TO BE MOVED, (B) MEANS, CONNECTED TO THE SAID RAMP MEANS FOR WITHDRAWING A SAMPLE VOLUME OF THE VEHICLE ENGINE EXHAUST GASES FROM THE ENGINE EXHAUST OUTLET AS A VEHICLE WHEEL MOVES OVER THE UPWARDLY INCLINED FACE OF THE FIRST NAMED MEANS, AND (C) MEANS ON SAID FIRST NAMED MEANS UPWARDLY INCLINED FACE AND ENGAGED BY THE VEHICLE WHEEL MOVING THEREOVER FOR ACTUATING SAID SECOND NAMED MEANS FOR OBTAINING AN ENGINE EXHAUST GAS SAMPLE.
Claim 2
Dependent Claim
141 words
PORTABLE APPARATUS FOR USE UPON A ROAD SURFACE TO SIMULATE PRE-DETERMINED LOADING CONDITIONS OF AN INTERNAL COMBUSTION ENGINE MOVING THE VEHICLE THEREOVER FOR OBTAINING SAMPLES OF THE ENGINE EXHAUST GASES FOR DETERMINATION OF SMOKE DENSITY AND OTHER AIR-POLLUTING GASES AND VAPORS THEREIN, COMPRISING. (A) RAMP MEANS HAVING A FLAT SURFACE ENGAGING BOTTOM FACE AND AN UPWARDLY INCLINED TOP FACE OVER WHICH A WHEEL OF THE VEHICLE IS TO BE MOVED, (B) MEANS, CONNECTED TO THE SAID RAMP MEANS FOR WITHDRAWING A SAMPLE VOLUME OF THE VEHICLE ENGINE EXHAUST GASES FROM THE ENGINE EXHAUST OUTLET AS A VEHICLE WHEEL MOVES OVER THE UPWARDLY INCLINED FACE OF THE FIRST NAMED MEANS, AND (C) MEANS ON SAID FIRST NAMED MEANS UPWARDLY INCLINED FACE AND ENGAGED BY THE VEHICLE WHEEL MOVING THEREOVER FOR ACTUATING SAID SECOND NAMED MEANS FOR OBTAINING AN ENGINE EXHAUST GAS SAMPLE.
References Cited (Backward Citations)
US1729732A
Cited
US2077538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |