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| Number | Title | Issue Date |
| 7278220 | Plumb bob with adjustable weights A plumb bob with adjustable weights for suiting different applications is disclosed that includes, in one embodiment, a bottom point; a shank extended upward from the point and having a lower portion and an upper threaded section; hollow first weight elements adapte... | 10/09/2007 |
| 7178754 | Balloon anchor The present invention provides a balloon anchor including a spool having opposing sides, a pair of flanges, one flange extending from each opposing side of the spool, at least one of the flanges having a cutout section, the cutout section having a first side and a s... | 02/20/2007 |
| 7134212 | Laser level A laser level disposable on a reference surface includes a housing, a pendulum pivotably connected to the housing, a first laser diode disposed on the pendulum for emitting a first laser beam along a first path, a first lens disposed on the pendulum in the first pat... | 11/14/2006 |
| 7055256 | Plumb bob square bracket A plumb bob bracket is disclosed for use in building construction having a first stud wall and a second stud wall each having an upper beam, a lower beam, and a plurality of vertical beams therebetween. The plumb bob bracket includes a first leg, a second leg attach... | 06/06/2006 |
| 6976316 | Magnetic plumb bob holder An inspection tool for measuring the true of metal door frames uses a plumb bob. The plumb bob is suspended from a holder which may be attached to a door frame by magnets in the body of the holder. The relationship of the holder dimensions models the relationship of... | 12/20/2005 |
| 6910396 | Hand-held multi-task device for detecting warfare and strategic traps A hand-held multi-task device comprising a handle, a pendulum pivotally attached to the handle, an adjustable-length rod attached to the handle, and at least one prodder attached to the handle. ... | 06/28/2005 |
| 6745485 | Chalk line device A chalk line device for marking straight lines in construction applications. The chalk line device includes a housing with a pair of separable sections and a pair of openings. Each of the sections has a sidewall, a pair of opposite ends, and a pair of side edges ext... | 06/08/2004 |
| 6539640 | Plumb bob system A plumb bob system for allowing an individual to easily utilize a plumb bob in determining whether a wall is plumb. The plumb bob system includes a pole, an engaging structure attached to an upper end of the pole, a pulley rotatably positioned within the ... | 04/01/2003 |
| 6481110 | Plumb bob A plumb bob which may be used in combination with a measuring tape for gauging the vertical height of a liquid, such as oil, stored in a tank. The plumb bob comprises a weight which is cushioned at its lower end by a elastomeric bumper. The bumper, which ... | 11/19/2002 |
| 5924643 | Construction line holder A light weight construction line holder having an elongated shaft which terminates at each end in a spiral configuration or coil. The shaft is provided with a through hole for securing an inner end of a construction line. The construction line is wrapped ... | 07/20/1999 |
| 5644852 | Chalk line reel A chalk line reel includes an opening in the housing that permits access to a powdered chalk storage area. A movable door is mounted on the housing, and the door is movable to a closed position in which the door obstructs the opening. A first element on t... | 07/08/1997 |
| 5444919 | Battery powered chalk line systems A battery powered chalk line comprising a housing having a top and bottom face and side walls forming a chamber therein. A drive shaft is secured within the side walls for rotational movement and extends across the width of the chamber. A spindle is mount... | 08/29/1995 |
| 5426860 | Plumb bob assembly A plumb bob assembly including a bob, a collet for suspending the bob from a drill press chuck, and a housing within which the collet and bob may be stored and around which a plumb bob cord may be wrapped when the bob is not in use. The housing protects t... | 06/27/1995 |
| 5392522 | Plumb bob and cooperating reel A plumb bob having a central body portion and at least three substantially identical webs extending outwardly from the body portion along respective radial axes. The angles separating each successive web must be equal to maintain vertical symmetry, and an... | 02/28/1995 |
| 5195248 | Plumb-bob The present invention relates to a plumb-bob and magnet combination for attachment to a beam. The plumb-bob and magnet combination for attachment to a beam includes a magnet having a top flat surface that is connected to the base, the magnet having two op... | 03/23/1993 |
| 5163230 | Chalk line apparatus A chalk line assembly includes a housing formed with a cavity therewith to receive powdered chalk, with a chalk line wound within the housing about a central spool. A crank handle is directed into the housing to effect winding and reeling of a chalk line ... | 11/17/1992 |
| 4934060 | Golfer's aid A golfer's aid for helping a golfer determine the contour of a putting green and a method of assembling the golfer's aid are disclosed. The aid includes a plumb bob and a plumb line having a first end secured to the plumb bob and a second end secured to a... | 06/19/1990 |
| 4920657 | Assembly for plumb bob and line The assembly includes the plumb bob and line, and a cylindrical rotor mounted eccentrically for eccentric rotation about an axis of rotation. The line is connected at one end to the rotor and at the other end to the plumb bob. The rotor may be rotated to ... | 05/01/1990 |
| 4697349 | Multi-function measuring apparatus A housing substantially with a rectangular-box shape containing a flexible measuring tape stored therein and a tape-opening provided on the upper face thereof. An ink box containing ink and an ink thread is provided on the front face of the housing. The o... | 10/06/1987 |
| 4459761 | Retractable plumb and chalk line The invention contemplates a plumb-indicating and marking tool whereby marking a plumb line on a wall or other structure is a simple one-handed operation, so that the user, who may be in an otherwise precarious position on a ladder, may have one hand free... | 07/17/1984 |
| 4321755 | Plumb bob holder An improved plumb bob holder, comprising a stiff wire frame formed to provide a spool section for the cord, a storage rack section to hold the plumb bob, and a clip section to clip the plumb bob holder to a workman's belt.... | 03/30/1982 |
| 4266347 | Holder for a plumb bob A holder for a plumb bob, comprising a frame formed from a continuous length of relatively stiff but bendable wire to provide a spool portion for the plumb bob cord, and a storage rack to hold the plumb bob. A cord play-out stop member is included to anch... | 05/12/1981 |
| 3977088 | Vertical positioning device A device adapted for use in the building construction industry for shooting a stud or other fastener into a ceiling in predetermined relation to a known point on a floor below. The device comprises an adjustable telescopic pole with a hanger arm extending... | 08/31/1976 |
