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Class Information
Number: 33/392
Name: Geometrical instruments > Indicator of direction of force traversing natural media > Level or plumb, terrestrial gravitation responsive > Pendulum > Plumb line (i.e., flexible, line suspended plumb bob)
Description: Device wherein the body is a plumb bob suspended by a flexible line.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7278220 |
Plumb bob with adjustable weights |
Oct. 9, 2007 |
| 7089679 |
Measuring apparatus and method therefor |
Aug. 15, 2006 |
| 7055256 |
Plumb bob square bracket |
Jun. 6, 2006 |
| 7036235 |
Vertical alignment device |
May. 2, 2006 |
| 6976316 |
Magnetic plumb bob holder |
Dec. 20, 2005 |
| 6948253 |
Plumb-bob |
Sep. 27, 2005 |
| 6906865 |
Light altering device |
Jun. 14, 2005 |
| 6898861 |
String line tool and sheaths therefor |
May. 31, 2005 |
| 6874239 |
Self-holding and self-leveling device for survey range pole and method of use |
Apr. 5, 2005 |
| 6742269 |
Verticality/horizon indicator for construction |
Jun. 1, 2004 |
| 6640453 |
Clinometer |
Nov. 4, 2003 |
| 6622393 |
Combined string line anchor and plumb bob |
Sep. 23, 2003 |
| 6604291 |
Self-leveling device |
Aug. 12, 2003 |
| 6539640 |
Plumb bob system |
Apr. 1, 2003 |
| 6490808 |
Topographic measuring device |
Dec. 10, 2002 |
| 6430826 |
Brick placement guiding apparatus and method of the same |
Aug. 13, 2002 |
| 6397484 |
Laser-emitting plumb-bob |
Jun. 4, 2002 |
| 6311407 |
Picture hanging aid |
Nov. 6, 2001 |
| 6202313 |
Pencil-type plumb-bob device |
Mar. 20, 2001 |
| 6023849 |
Laser beam focus and alignment method |
Feb. 15, 2000 |
| 6021578 |
Apparatus for aligning door pivots |
Feb. 8, 2000 |
| 5974676 |
Low profile plumb bob assembly |
Nov. 2, 1999 |
| 5950318 |
Laser beam focus and alignment method and apparatus |
Sep. 14, 1999 |
| 5933974 |
Combination square, level and plumbing tool |
Aug. 10, 1999 |
| 5799405 |
Vertical alignment tool for underground installation |
Sep. 1, 1998 |
| 5791061 |
Marking plumb bob |
Aug. 11, 1998 |
| 5720113 |
Apparatus designed for use as both a string line anchoring device and as a plumb bob |
Feb. 24, 1998 |
| 5720112 |
Asymmetrical plumb bob and method |
Feb. 24, 1998 |
| 5673491 |
Crane level indicator device |
Oct. 7, 1997 |
| 5621977 |
Plumb bob |
Apr. 22, 1997 |
| 5520384 |
Golf trajectory indicating device |
May. 28, 1996 |
| 5481809 |
Laser plumb bob and apparatus |
Jan. 9, 1996 |
| 5473819 |
Plumb bob string holder |
Dec. 12, 1995 |
| 5469633 |
Plumb bob |
Nov. 28, 1995 |
| 5426860 |
Plumb bob assembly |
Jun. 27, 1995 |
| 5406713 |
Apparatus for maintaining a scientific and measuring instrument or the like in a level plane |
Apr. 18, 1995 |
| 5392522 |
Plumb bob and cooperating reel |
Feb. 28, 1995 |
| 5323539 |
Plumb bob reel |
Jun. 28, 1994 |
| 5239761 |
Multiple-purpose measuring instrument |
Aug. 31, 1993 |
| 5225626 |
Azimuth determination method |
Jul. 6, 1993 |
| 5205042 |
Process for adjusting the verticality of an article disposed in a closed envelope and assembly for carrying this process |
Apr. 27, 1993 |
| 5201129 |
Vertical indicator unit |
Apr. 13, 1993 |
| 5163230 |
Chalk line apparatus |
Nov. 17, 1992 |
| 5157843 |
High accuracy self-setting plumb bob with slide hammer |
Oct. 27, 1992 |
| 5136785 |
Apparatus for constructing masonry corners |
Aug. 11, 1992 |
| 5079848 |
Base-point anchor |
Jan. 14, 1992 |
| 5077907 |
Pipe measuring apparatus |
Jan. 7, 1992 |
| 5077906 |
Surveying rod leveling device |
Jan. 7, 1992 |
| 4976041 |
Base-point anchor |
Dec. 11, 1990 |
| 4949467 |
Inclinometer including an apparatus for maintaining a scientific and measuring instrument or the like in a level plane |
Aug. 21, 1990 |
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