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Class Information
Number: 267/180
Name: Spring devices > Coil > Irregular
Description: Spring device in which the spring element is of one-piece construction and (a) includes plural, intervoluted coils; or (b) is out-of-round in cross-section; or (c) in the unstressed condition thereof, includes portions which vary, one from another in (1) helix angle, or (2) distance from a common, central, longitudinal axis, or (3) cross-section.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7418753 |
One-sided mattress |
Sep. 2, 2008 |
| 7418973 |
Device to reduce noise in pressure regulators |
Sep. 2, 2008 |
| 7404223 |
Innerspring coils and innersprings with non-helical segments |
Jul. 29, 2008 |
| 7367354 |
Check valve |
May. 6, 2008 |
| 7337796 |
Safety relief valve having a low blow-down value and spring therefore |
Mar. 4, 2008 |
| 7309357 |
Prosthetic spinal discs |
Dec. 18, 2007 |
| 7247007 |
Linear compressor |
Jul. 24, 2007 |
| 7231702 |
Connector and method of use thereof |
Jun. 19, 2007 |
| D538434 |
Orthodontic spring |
Mar. 13, 2007 |
| D537945 |
Orthodontic spring |
Mar. 6, 2007 |
| 7178187 |
Asymmetric spring components and innersprings for one-sided mattresses |
Feb. 20, 2007 |
| 7168117 |
Multi-stranded coil spring |
Jan. 30, 2007 |
| 7152854 |
Spring mechanism and cell contact mechanism for small electronic device |
Dec. 26, 2006 |
| 7047581 |
Stranded mattress spring |
May. 23, 2006 |
| 6944899 |
Stranded mattress spring |
Sep. 20, 2005 |
| 6931685 |
One-sided mattress |
Aug. 23, 2005 |
| 6883790 |
Coil spring with lateral bias |
Apr. 26, 2005 |
| 6712346 |
Helical compression spring for a vehicle suspension |
Mar. 30, 2004 |
| 6669184 |
Composite wave ring spring |
Dec. 30, 2003 |
| 6604736 |
Spring assembly with captured core |
Aug. 12, 2003 |
| 6547227 |
Torsional vibration damper and helical compression spring for a torsional vibration damper |
Apr. 15, 2003 |
| 6543757 |
Helical compression spring for a vehicle suspension |
Apr. 8, 2003 |
| 6533259 |
Resilient return means having a fixing seat and elongate body fitted with such resilient return means |
Mar. 18, 2003 |
| 6481701 |
Spring having coils of varying diameters |
Nov. 19, 2002 |
| 6460835 |
Wheel suspension system and spring therefor |
Oct. 8, 2002 |
| 6460840 |
Helical compression spring for a vehicle suspension |
Oct. 8, 2002 |
| 6375174 |
Curved helical compression spring |
Apr. 23, 2002 |
| 6328290 |
Helical compression spring for a vehicle suspension |
Dec. 11, 2001 |
| 6299367 |
Coil spring sheet-pressing member for sheet feeding mechanism |
Oct. 9, 2001 |
| 6299150 |
Composite spring mount shock absorber |
Oct. 9, 2001 |
| 6273396 |
Electromagnetic valve |
Aug. 14, 2001 |
| 6250618 |
Curved wave shim |
Jun. 26, 2001 |
| 6234925 |
Transmission |
May. 22, 2001 |
| 6220586 |
Multiple torsion spring and methods of use |
Apr. 24, 2001 |
| 6193225 |
Non-linear non-circular coiled spring |
Feb. 27, 2001 |
| 6145762 |
Variable rate spring for a fuel injector |
Nov. 14, 2000 |
| 6062157 |
Yieldable tackle for tension elements such as cables |
May. 16, 2000 |
| 6050557 |
Coiled disk spring |
Apr. 18, 2000 |
| 6032710 |
Elastic element and shock-absorbing devices, particularly vehicle tires, constructed therewith |
Mar. 7, 2000 |
| 6024346 |
Coil spring resistant to permanent set and fatigue |
Feb. 15, 2000 |
| 5957442 |
Turn signal spring |
Sep. 28, 1999 |
| 5944302 |
Linear compressor including reciprocating piston and machined double-helix piston spring |
Aug. 31, 1999 |
| 5934572 |
Control spring for a fuel injection valve for internal combustion engines |
Aug. 10, 1999 |
| 5909791 |
Spring clutch |
Jun. 8, 1999 |
| 5878998 |
Conical spring |
Mar. 9, 1999 |
| 5803444 |
Coiled wave spring and production method thereof |
Sep. 8, 1998 |
| 5791638 |
Coil spring with ends adapted for coupling without welding |
Aug. 11, 1998 |
| RE35846 |
Sheet sorting apparatus |
Jul. 14, 1998 |
| 5769722 |
Trapezoidal shaped coil spring for a damper disc apparatus |
Jun. 23, 1998 |
| 5697473 |
Brake mechanism with simplified separator springs |
Dec. 16, 1997 |
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