REINFORCED COIL SPRING OF A HOSE REEL
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 23, 2024
app pub date -
Aug 26, 2021
filing date -
Jul 9, 2021
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
The reinforced coil spring of a hose reel includes a steel leaf spring being arranged on an inside surface of the outermost spring-coil. An outer end tip of the steel leaf spring and the outermost spring-coil are fixedly connected, and an inner end tip of the steel leaf spring is located between the outermost spring-coil and a second-outer spring-coil. The steel leaf spring added in the reinforced coil spring of a hose reel can not only enhance the tightening force of the outermost spring-coil of the coil spring, but avoid increasing the maximum pullout force of the coil spring, while achieving low production cost. The ear hook in the reinforced coil spring of a hose reel has better overall strength, and an opening of the ear hook is less prone to expanding during use.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully