Positive displacement rotary devices with uniform tolerances
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 27, 2018
Grant Date -
Aug 10, 2017
app pub date -
Apr 26, 2017
filing date -
Aug 23, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A first rotor configured to rotate adjacent to a second rotor is disclosed. The second rotor includes a circular main body with a first axis of rotation and a vane extending radially from the main body. The first rotor includes a first curved surface that corresponds to a curve swept at a constant radius about a second axis of rotation, a second curved surface that corresponds to a curve swept by a leading edge of the vane when the second rotor is simultaneously rotated about the first axis of rotation and the second axis of rotation, a third curved surface that corresponds to a curve swept by a trailing edge of the vane when the second rotor is simultaneously rotated about the first axis of rotation and the second axis of rotation, and a vane-receiving groove disposed between the second curved surface and the third curved surface.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- F04C Class
- 571 Applications Filed
- 404 Patents Issued To-Date
- 70.76 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- F04C Class
- 36.96 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 27, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 27, 2030 |
