U.S. patent number D681,980 [Application Number D/383,932] was granted by the patent office on 2013-05-14 for asymmetric coil spring.
This patent grant is currently assigned to Dreamwell, Ltd.. The grantee listed for this patent is Michael S. DeFranks. Invention is credited to Michael S. DeFranks.
United States Patent |
D681,980 |
DeFranks |
May 14, 2013 |
**Please see images for:
( Certificate of Correction ) ** |
Asymmetric coil spring
Claims
CLAIM The ornamental design for an asymmetric coil spring, as shown
and described.
Inventors: |
DeFranks; Michael S. (Decatur,
GA) |
Applicant: |
Name |
City |
State |
Country |
Type |
DeFranks; Michael S. |
Decatur |
GA |
US |
|
|
Assignee: |
Dreamwell, Ltd. (Las Vegas,
NV)
|
Family
ID: |
45541119 |
Appl.
No.: |
D/383,932 |
Filed: |
January 24, 2011 |
Related U.S. Patent Documents
|
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
|
13008720 |
Jan 18, 2011 |
|
|
|
|
11978869 |
Oct 29, 2007 |
|
|
|
|
Current U.S.
Class: |
D6/718.31 |
Current CPC
Class: |
A47C23/0438 20130101;
A47C27/065 20130101; A47C27/064 20130101 |
Current International
Class: |
0606 |
Field of
Search: |
;D6/503,504
;5/716,246,248,256 ;267/91 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Seeger; Janice
Attorney, Agent or Firm: Cantor Colburn LLP
Description
FIG. 1 shows a perspective view of an uncompressed asymmetric coil
spring showing my new design. The coil spring includes an upper
section and a lower section. The upper section has a generally
conical shape whereby the diameter of the coil spring in the upper
section increases from top to bottom of the upper section. The
upper section includes four active convolutions. The lower section
is generally cylindrical such that the diameter stays substantially
the same along the length of the coil spring in the lower section.
The full coil includes nine active convolutions.
FIG. 2 shows a top down view of the asymmetric coil spring shown in
FIG. 1; and,
FIG. 3 shows a bottom down view of the asymmetric coil spring shown
in FIG. 1.
* * * * *