Vane-type hydraulic device having vane formed with engaging groove
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 31, 2016
Grant Date -
Aug 28, 2014
app pub date -
Oct 18, 2011
filing date -
Oct 18, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vane pump (1) includes: a front side vane case (40), a rear side vane case (50), a pump housing (60), a pump cover (70), a drive shaft (30), a rotationally driven rotor (10), and vanes (20) provided in slot sections (13), wherein engaging groove sections and guide protrusions (46, 52), which engaging one another, are provided in the vanes (20), the front side vane case (40) and the rear side vane case (50), the engaging groove sections and guide protrusions (46, 52) are composed in such a manner that the vanes (20) move following a proximal inner peripheral surface (42b) in a state where the vane is proximate to the proximal inner peripheral surface (42b), in accordance with rotation of the rotor (10), and pump chambers are demarcated by the vanes (20) situated in proximity with the proximal inner peripheral surface (42b).
First Claim
Other Claims data not available
Family
International Classification(s)
- 2011 Application Filing Year
- F04C Class
- 256 Applications Filed
- 222 Patents Issued To-Date
- 86.72 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F04C Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 30, 2027 |
