 |
|
|
|
|
|
 Title: |
US4392654:
Arrow fletching
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Carella, Richard F.; Mount Clemens, MI 48043
|
| Assignee: |
None
|
| Published / Filed: |
1983-07-12
/ 1981-06-19
|
| Application Number: |
US1981000275167
|
| IPC Code: |
Advanced:
F42B 6/02;
F42B 6/06;
Core:
F42B 6/00;
IPC-7:
F41B 5/02;
|
| ECLA Code: |
F42B6/06;
|
| U.S. Class: |
Current:
473/586;
264/145;
425/383;
Original:
273/423;
425/383;
264/145;
|
| Field of Search: |
273/420,423
|
| Priority Number: |
| 1981-06-19 |
US1981000275167 |
|
| Abstract: |
Arrow fletchings (42, 102) disclosed have curved vanes (50, 114) inclined inwardly in a rearward direction to provide pockets (54, 118) for restricting air flow while allowing vane flexing in a manner that moderates drag in response to wind changes. One fletching embodiment (42) is preferably made by plastic extrusion and a subsequent heat forming process and includes a vane (50) whose inner portion projects radially from its foot (44) and whose outer portion define its curved pocket (54). Another fletching embodiment (102) made from sheet plastic includes a vane (114) that projects tangentially from the arrow shaft on which its foot (104) is mounted and is curved to define the pocket (118) that restricts air flow. A fixture (68) for heat forming the pocket of the one fletching embodiment (42) and a method for making the other fletching embodiment (102) are also disclosed.
|
| Attorney, Agent or Firm: |
Reising, Ethington, Barnard, Perry, Brooks & Milton ;
|
| Primary / Asst. Examiners: |
Shapiro, Paul E.;
|
| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
|
| Family: |
Show 4 known family members
|
First Claim:
Show all 15 claims |
What is claimed is:
1. An arrow fletching comprising: a foot adapted to mount the fletching on an arrow shaft and having front and rear ends; and a flexible vane projecting from the foot and having a continuously curved shape over a major portion of the projecting height thereof from the foot, said curved shape of the vane being inclined inwardly toward the foot in a rearward direction to define a pocket for restricting air flow such that the vane flexes to moderate drag in response to wind changes.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 24 U.S. patent(s) that reference this one
|
