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Class Information
Number: 33/390
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Liquid type, upper surface utilizing > Bubble > Universal, or plural indicating sections on container
Description: Device wherein the receptacle is so shaped as to either (1) define a level plane as distinguished from a level (horizontal) line or (2) have two separate and distinct sections for cooperation with the bubble, usually one section to indicate level and the other to indicate plumb.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7370428 |
Parking area level indication device |
May. 13, 2008 |
| 7363719 |
Pocket level |
Apr. 29, 2008 |
| 7152335 |
Omnidirectional torpedo level having magnetic mounts and adjustable protractor |
Dec. 26, 2006 |
| 6993849 |
Capacitive balance leveling device |
Feb. 7, 2006 |
| 6990742 |
Wave level |
Jan. 31, 2006 |
| 6910279 |
Holder for a graduated element |
Jun. 28, 2005 |
| 6901671 |
Level capable to measure minute inclination |
Jun. 7, 2005 |
| 6834435 |
Multi-purpose leveling device |
Dec. 28, 2004 |
| 6782628 |
Level having rotatable vial support device |
Aug. 31, 2004 |
| 6688013 |
Electrolytic-tilt-sensor |
Feb. 10, 2004 |
| 6647634 |
Reliably sensing bubble leveling means |
Nov. 18, 2003 |
| 6499219 |
Electric hand drill system |
Dec. 31, 2002 |
| 6240649 |
Sighting assembly |
Jun. 5, 2001 |
| 6212785 |
Omnidirectional angle indicator |
Apr. 10, 2001 |
| 6204498 |
Inclination sensor and surveying instrument using the same |
Mar. 20, 2001 |
| 6158134 |
Equipment leveling device |
Dec. 12, 2000 |
| 6138368 |
Sprinkler head leveler |
Oct. 31, 2000 |
| 5937528 |
Tilt sensor, mask and coat holder |
Aug. 17, 1999 |
| 5926965 |
Tilt sensor and top cover plate thereof |
Jul. 27, 1999 |
| 5893215 |
Inclination sensor and surveying instrument using the same |
Apr. 13, 1999 |
| 5839200 |
Multi-function horizontal and vertical alignment tool |
Nov. 24, 1998 |
| 5836081 |
Light beam leveling means and method |
Nov. 17, 1998 |
| 5794355 |
Rotationally actuated position sensor |
Aug. 18, 1998 |
| 5749152 |
Spirit level vial construction |
May. 12, 1998 |
| 5685083 |
Combination plumb and level device |
Nov. 11, 1997 |
| 5655309 |
Tool for determining true vertical for tubular objects |
Aug. 12, 1997 |
| 5632484 |
Bubble level device, attachable to the grip of a golf club |
May. 27, 1997 |
| 5625955 |
Tilt sensor |
May. 6, 1997 |
| 5509210 |
Multiple position level |
Apr. 23, 1996 |
| 5456014 |
Mechanical leveling device |
Oct. 10, 1995 |
| 5444918 |
Arrangement for aligning an apparatus unit |
Aug. 29, 1995 |
| 5421094 |
Adjustable level |
Jun. 6, 1995 |
| 5408752 |
Plumb tool kit attachable to the ends of a common level, or the like, used to determine vertical alignment |
Apr. 25, 1995 |
| 5255443 |
Post level with detent |
Oct. 26, 1993 |
| 5235755 |
Angle finding device |
Aug. 17, 1993 |
| 5174572 |
Golf club having a position indicator mounted thereto |
Dec. 29, 1992 |
| 5174034 |
All-purpose level |
Dec. 29, 1992 |
| 5157842 |
Level with ball rolling on arcuate surfaces |
Oct. 27, 1992 |
| 5127167 |
Multi-function spirit-level |
Jul. 7, 1992 |
| 5079847 |
Two axis inclination sensor |
Jan. 14, 1992 |
| 5025568 |
Photographic enlarger alignment tool and method for aligning a photographic enlarger |
Jun. 25, 1991 |
| 4986002 |
Quick setting angle device for a welding torch |
Jan. 22, 1991 |
| 4912854 |
Cross vial liquid bubble illuminated level |
Apr. 3, 1990 |
| 4908949 |
Air-bubble level for portable tools |
Mar. 20, 1990 |
| 4794701 |
Level device for a chainsaw |
Jan. 3, 1989 |
| 4785544 |
Spirit level accessory for the electric drill |
Nov. 22, 1988 |
| 4754553 |
One-man field survey instrument |
Jul. 5, 1988 |
| 4745687 |
Level indication device and method for providing a level indication of up to three degrees accuracy |
May. 24, 1988 |
| 4662265 |
Arrangement for horizontally orienting a rotatable platform for a weapon |
May. 5, 1987 |
| 4583296 |
Electrical inclination sensor and method for its manufacture |
Apr. 22, 1986 |
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