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Class Information
Number: 33/384
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Liquid type, upper surface utilizing > Bubble > Liquid container adjustable on reference-surface section
Description: Device wherein the nearly filled receptacle is supported by a member having a surface of reference, usually adapted to be placed against a workpiece, the support being such as to provide for adjustment of the receptacle with respect to said surface.










Sub-classes under this class:

Class Number Class Name Patents
33/388 Adjustment indicium 16
33/385 Cam-type adjuster (e.g., gear, screw, wedge, etc. 15


Patents under this class:

Patent Number Title Of Patent Date Issued
7614662 Pipe fitting with orientation indicator Nov. 10, 2009
7600324 Level Oct. 13, 2009
7555842 Line leveling tool and method of use Jul. 7, 2009
7467475 Leveling device Dec. 23, 2008
7363719 Pocket level Apr. 29, 2008
7360317 Level having an adjustable mechanism for truing to acquire an exact reading Apr. 22, 2008
6990742 Wave level Jan. 31, 2006
6901671 Level capable to measure minute inclination Jun. 7, 2005
6782628 Level having rotatable vial support device Aug. 31, 2004
6591510 Method and apparatus for securing and aligning bubble vials Jul. 15, 2003
6477781 Angle spirit level device Nov. 12, 2002
6176020 Anti-thermal expansion vial mounting system Jan. 23, 2001
6158134 Equipment leveling device Dec. 12, 2000
6148530 Level with snap action vial holder Nov. 21, 2000
5992033 Shock absorbing, easily calibrated vial system for a carpenter's level Nov. 30, 1999
5966826 Dual usage level marking instrument Oct. 19, 1999
5755623 Level accessory for golf putters May. 26, 1998
5546670 Multi-purpose measuring instrument for wood working machines Aug. 20, 1996
5509657 Position indicator device for golf clubs Apr. 23, 1996
5444918 Arrangement for aligning an apparatus unit Aug. 29, 1995
5421094 Adjustable level Jun. 6, 1995
5359499 Vertical/horizontal indicator for a vehicular headlamp Oct. 25, 1994
5174572 Golf club having a position indicator mounted thereto Dec. 29, 1992
5103569 Multipurpose combination leveling tool Apr. 14, 1992
5063679 Protractor bubble level Nov. 12, 1991
5031081 Headlamp for power vehicle Jul. 9, 1991
5025568 Photographic enlarger alignment tool and method for aligning a photographic enlarger Jun. 25, 1991
5001838 Spirit level Mar. 26, 1991
4996777 Snap-in level vial cover Mar. 5, 1991
4989327 Adjustable side draft indicator Feb. 5, 1991
4964219 Combination plumb/level instrument for a try square Oct. 23, 1990
4932132 Electronic level apparatus and method Jun. 12, 1990
4848003 Positioning device Jul. 18, 1989
4791731 Vertical surface installing device Dec. 20, 1988
4774767 Water level Oct. 4, 1988
4635376 Angle measuring apparatus Jan. 13, 1987
4571845 Polycast level instruments with means for retaining level vials therein Feb. 25, 1986
4564322 Drill scope Jan. 14, 1986
4546549 Adjustable spirit level construction Oct. 15, 1985
4484393 Illuminated spirit level Nov. 27, 1984
4435908 Offset, extendable, quick-release plumbness indicating apparatus Mar. 13, 1984
4322890 Datum line gauge system Apr. 6, 1982
D257671 Adjustable level Dec. 23, 1980
4161299 Aircraft performance data qualifier Jul. 17, 1979
4079520 Level bubble for a golf club Mar. 21, 1978











 
 
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