Fastener driving tool using a gas spring
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 15, 2021
Grant Date -
Apr 1, 2021
app pub date -
Nov 5, 2020
filing date -
Oct 5, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2020 Application Filing Year
- B25C Class
- 137 Applications Filed
- 101 Patents Issued To-Date
- 73.73 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- B25C Class
- 53.56 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Dec 15, 2024 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 15, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 15, 2032 |