Class 33/375 - Affecting level or plumb indication

Subclass of Class 33 - Geometrical instruments
Definition: Device wherein the members are moveable in such a manner,
No. of patents: 31
Last issue date: 01/31/2012

Number	Title	Issue Date
8104187	Window frame deflection measurement device and method of use A portable device for measuring deflection of a surface, comprising an elongate frame having a first end and a second end and a first datum surface, a first removable reference assembly adjacent the first end, a second removable reference adjacent the second end, a ...	01/31/2012
7367129	Hand-held laser level with retractable adhesive-type retention feature A leveling or plumbing device for indicating a line or a plane on a surface, such as wall or floor. The device includes a light beam generator that emits a light beam exteriorly of a body or housing. Level and/or plumb indicators, such as vials, are mounted to the h...	05/06/2008
7328516	Laser level A reflector for projecting a laser beam in a fan-shaped plane of light are provided. Associated with each reflector is at least one light source. Each light source is oriented relative to its associated reflector such that the axis of the beam of light hits the refl...	02/12/2008
7316073	Studfinder and laser line layout tool A layout tool includes an object detector constructed and arranged to detect the location of a vertically extending edge portion of an object hidden from view behind a generally vertically extending wall surface, a light source that is capable of projecting a line o...	01/08/2008
7237341	Studfinder and laser line layout tool A layout tool includes an object detector constructed and arranged to detect the location of a vertically extending edge portion of an object hidden from view behind a generally vertically extending wall surface, a light source that is capable of projecting a line o...	07/03/2007
7171755	Picture hanging level A level designed for use in hanging pictures is disclosed. The level is proportioned to be easy and convenient to use in conjunction with a picture frame, having a pair of perpendicular legs that can rest on a corner of a picture frame and a level vial positioned wi...	02/06/2007
7150106	Method of using a level A water or spirit level is composed of an elongated body, preferably of metal, at least one bubble mounted in the elongated body, and end caps, preferably of plastics material, at the end faces of the elongated body, wherein at least one outer surface of the elongat...	12/19/2006
7086166	Spirit level with integrated inclination adjustment mechanism The present spirit level has an elongated body with a longitudinal leveling face and at least one inclination peg retractably mounted in the body. The inclination peg is configured to selectably extend at least partially out from the leveling face by at least one pr...	08/08/2006
6935034	Laser line generating device A self-contained line generating device uses a laser diode and a lens to project a fan-shaped beam of visible light. The lens is useful for receiving light and transmitting light in an asymmetrical planar beam. The light is useful for aligning objects in a vertical ...	08/30/2005
6912794	Bricklayer's combination level and plumb A bricklayer's combination level and plumb having a first I-section beam, a second I-section beam, and a connector pivotally and slidably connecting the second I-section beam to the first I-section beam wherein the second I-section is angularly displaceable up to an...	07/05/2005
6694632	Level A level comprises a frame defining first and second parallel channels and first and second rails fitted slidingly in the first and second channels respectively. The level is adjustable in length by sliding the rails in the respective channels of the frame...	02/24/2004
6658752	Extensible carpenter's level The present invention is an extensible carpenter's level that is adjustable between a collapsed position and a fully-extended position. The level may be manufactured in a variety of sizes. An exemplary embodiment of the level is comprised of an innerslide...	12/09/2003
6640455	Sliding adjustable track level An extendable carpenter's level which comprises a pair of extending body members capable of adapting and mounting upon the standard "I" level frame configuration of a carpenter's level by sliding said extendable body members onto the frame of the standard...	11/04/2003
6550152	Adjustable spirit level for tile and cabinet installation A spirit level for the installation of tile and cabinets includes a rigid body having upper and lower parallel planar surfaces separated by a first predetermined width. The body includes a bubble vial oriented to verify the orientation of the level. An au...	04/22/2003
6427348	Slope block A slope block assembly having a bubble level with an eccentrically mounted slope block detachably carried on one end of the level. The slope block has an offset turning axis with a plurality of supporting surfaces, all located at different distances from ...	08/06/2002
6293024	Leveling device A leveling device has a housing, a support surface which is fixed with the housing, an adjusting device including at least one adjusting screw which is displaceable outwardly and has an adjusting thread which is engageable with a counter thread for adjust...	09/25/2001
6293023	Level A level comprises a frame defining first and second parallel channels and first and second rails fitted slidingly in the first and second channels respectively. The level is adjustable in length by sliding the rails in the respective channels of the frame...	09/25/2001
6279240	Extensible carpenter's level The present invention is an extensible carpenter's level that is adjustable between a collapsed position and a fully-extended position. The level may be manufactured in a variety of sizes. A preferred embodiment of the level is comprised of an innerslide ...	08/28/2001
6178649	Optical calibrating apparatus for emitting datum laser line An optical calibrating apparatus includes: a laser illuminator (6) disposed in an eccentric adjusting sleeve (5), an inner inclined adjusting sleeve (4) within a jacket (3), an outer inclined adjusting sleeve (2) outside the jacket (3), and a cylindrical ...	01/30/2001
5488777	Utility line angle measurement device A small, portable, lightweight device enabling one person to quickly and accurately measure the angle of a utility line at a given pole consists of a protractor rotatable about a central axis divided into quadrants with a rotatable pointer mounted on the ...	02/06/1996
5438761	Rotatable carpenter's level A level apparatus incorporates a ruler member for making linear measurements and a level support assembly which is rotatably mounted on the ruler member. The level support assembly is mounted in the center of the ruler member and includes a pair of bracke...	08/08/1995
4910876	Level attachment An attachment for connection with an elongated carpenter's level for forming an enlarged squaring tool, the level having a central web portion with spaced apart bubble indicators and parallel flanges at opposite end edges of the web portions. The attachme...	03/27/1990
4754553	One-man field survey instrument A one-man field survey instrument for conducting small scale engineering surveys. The instrument automatically measures relative vertical and horizontal angles as it is moved over the terrain. The measurements are thereafter processed to prepare a topogra...	07/05/1988
4635376	Angle measuring apparatus Angle measuring apparatus, particularly for measuring doctor blade angle, comprises an elongate support (1); a horizontal level detecting device (4) pivotally connected to an upper surface of the support (1); and means (5, 8) for determining the angle bet...	01/13/1987
4617820	Level calibrating device The invention is a level checking device having a pair of orthogonal surfaces which are positioned precisely as horizontal or vertical references, respectively. The device includes a mounting bracket which is used to mount the horizontal and vertical refe...	10/21/1986
4607437	Adjustable level An adjustable level apparatus (10) comprising a core level unit (11) provided with a pair of extension arm units (12) that are formed by upper (25) and lower (26) housing casings that are connected together through the core level unit (11), and the extens...	08/26/1986
4543731	Gradient measuring devices A gradient measuring device incorporating a conventional level such as a spirit level and having an end gauge member which is rotatable providing a lowermost reference by which when the level is horizontal there is a gauge reference to a slope position be...	10/01/1985
4255865	Camber aligning tool A tool for checking the angle of camber of a vehicle wheel which includes a frame, a plurality of upper pin members removable from the frame, a lower pin member mounted on the frame, and indicator means disposed on the frame and providing an indication of...	03/17/1981
4067117	Grade checking tool A spirit level having a measuring stick slidably mounted on one end of the level with means attached to the level for clamping and releasing the free transverse movement of said measuring stick from a position near the center of the level. A separate brac...	01/10/1978
3947970	Roll alignment gauge An alignment gauge for use in determining whether two elongated members, such as cylindrical rolls, are in parallel relationship. The gauge includes a rod or standard, and a pad is connected to a micrometer and is mounted for lateral movement with respect...	04/06/1976
3939571	Method and apparatus for aiming aircraft visual approach slope indicator An aiming bar is inserted through the aiming slit of an aircraft visual approach slope indicator housing and secured at its inner end to a cross bar in front of a horizontal row of landing lights so that the aiming bar assumes the vertical angle of the up...	02/24/1976

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Class 33/375 - Affecting level or plumb indication