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Class 33/454 - Parallel type


Subclass of Class 33 - Geometrical instruments
Definition: Subject matter comprising at least two straightedges linked
No. of patents: 24
Last issue date: 06/16/2009


NumberTitleIssue Date
7546688Parallel ruler device
To provide a parallel ruler device with which it is easy to obtain a plate material of a constant width having parallel sides. Also, to make it possible to easily carry out a precision adjustment of an amount of parallel movement of a ruler face by means of a visual...
06/16/2009
7302763Adjustable jig for use when installing bargeboards
An adjustable jig includes rigidly formed arms that have rectilinear shapes provided with opposite edges, an elongated central opening formed therein and opposed ends abutted with adjacent arm ends. Fasteners are interfitted within the arm openings such that the arm...
12/04/2007
7159328Measurement gauge incorporating a level
Apparatus 10 discloses a handle 32 for manipulating the device and an extending rule portion 18 having a series of markings or measurements 26 embossed along its edge serving as a base of spacing measurement for a pivotally mounted swing ...
01/09/2007
7094008Power driver bit self-centering and positioning apparatus
A portable combined clamp and bit guide assembly guides a bit, turned by a power driver, into the exact center between the opposing faces of the clamp. The clamp is designed to hold workpieces having substantially parallel edges and a substantially linear centerline...
08/22/2006
7082692Adjustable multifunction ruler
An adjustable ruler includes two elongate ruler members and an adjustable clamping member. Each of the ruler members includes a longitudinal slot, outwardly facing channels along opposite sides of the slot, parallel longitudinal sides, and measuring indicia marked a...
08/01/2006
6994403Apparatus and method for removing floor tile
An apparatus and a method that is used to mechanically remove flooring tiles intact from the foundation and then after the foundation and tile surfaces have been prepared, the same tile is reset undamaged. ...
02/07/2006
6986210Adjustable cutting template
An adjustable cutting template includes a plurality of leg members selectively engageable with each other for defining a cutting perimeter on a substantially solid surface. Each plurality of leg members includes a first portion and a second portion attached thereto ...
01/17/2006
6944964Adjustable template
A template includes a base on which a plurality of wings are slidably mounted to move with respect to each other. The base also includes locks for locking the wings in positions. Levels, tape measures and markings are also on the base to assist with placement of the...
09/20/2005
6934904Data integrity error handling in a redundant storage array
Data integrity errors in a redundant storage array are handled by storing a plurality of data blocks having a horizontal redundant relationship and storing a plurality of checksums, each checksum having a vertical redundant relationship with a corresponding one of t...
08/23/2005
6804894Parallel rule
A parallel rule is disclosed having two component rules (4, 6) each providing one of two opposed parallel straight edges. A linkage (10) allows relative movement of the rules in a direction orthogonal to the straight edges but prohibits relative moveme...
10/19/2004
6321459Device for assisting a user to draw a topographical contour map
A device for use in plotting equal spacings over a distance includes a frame comprising opposed first and second pairs of frame members with each frame member having opposed ends and pivotal connecting means for pivotally connecting adjacent frame members...
11/27/2001
6195903Tools for squaring ends of elongated objects
A tool for cutting the ends of conveyor belts square includes a T square having a cross leg standing transverse to the belt when the tool is used and a primary leg extending longitudinally along the belt. A pair of end links are adapted to engage opposite...
03/06/2001
6173503Adjustable gauge device for use in installing railing spindles
A gauge device for spacing railing spindles or other parallel building elements used in construction. The gauge device is a generally rectangular assembly having two long edges that are spaced a predetermined distance apart. An adjustment mechanism is emb...
01/16/2001
6119356Parallelogram tool for locating stairway and stair landing railings
Embodiments of a stairway or walkway handrail construction tool are shown and described, each embodiment comprising a frame of four outer members. The members are pivotally joined at or near each end and can thus be moved to form a square or rectangle and...
09/19/2000
5437105Center finding device
A center finding device for locating the geometric center of a workpiece having substantially parallel side surfaces including a pair of crossed arm members pivotally secured to each other by a tubular member with a marking pin received therein and secure...
08/01/1995
5410816Tile, angle-cutting gauge
A body, having a straight-edged rule fixed thereto, and transverse thereto, slidably receives a pair of blocks which also have straight-edged rules fixed thereto. All the rules are parallel, and one thereof is used to engage a proximate wall surface, whil...
05/02/1995
5361508Tile, angle-cutting gauge
A body, having a straight-edged rule fixed thereto, and transverse thereto, slidably receives a pair of blocks which also have straight-edged rules fixed thereto. All the rules are parallel, and one thereof is used to engage a proximate wall surface, whil...
11/08/1994
5241754Navigational aid for use with a map, chart, or the like
A pair of members (8) and (9) are joined by a pair of parallelograms (11) and (13) and when the members (8) and (9) are semi-circular in shape, they provide an apparatus and method whereby they may be positioned adjacent each other to form a circular memb...
09/07/1993
5152069Parallel rule
A parallel rule which includes a gripper body cover and a rule body, with a gripper body base positioned between them. A plurality of float-contact rollers are installed through respective openings in the rule body and gripper body base. The parallel rule...
10/06/1992
5107600Parallel measuring guide device
An apparatus for ensuring parallel measuring, alignment and minimum spacing of two objects, particularly for setting a rip fence in connection with a table saw or drill press, having a first rectangular end plate provided with at least two rods perpendicu...
04/28/1992
4601108Spacer device
A spacer device for use in placing contour lines between known points of elevation when plotting stadia, in spacing of architectural units, and in making perspective drawings, includes a parallelogramic frame comprising a plurality of frame elements pivot...
07/22/1986
4351117Drawing board apparatus
A drawing apparatus includes a base member of rectangular form with front, rear and opposite side margins and an upper surface with a compass rose plate for affixing a drawing sheet thereon and pivotally mounted to the base member upper surface. A carriag...
09/28/1982
4164249Method and apparatus for machining components for stairs
An apparatus that facilitates the manufacture of wooden stairs of the type having treads and risers extending between and affixed to side housings or stringers. The apparatus provides multiple, parallel guides for the router used to cut the grooves in the...
08/14/1979
4078312Drafting parallel bar
A parallel bar including a base member adapted to be flatly positioned on the surface of a drawing board in overlying relation for movement in opposing directions along guiding cables transversely of the board. The base member is provided with a scale and...
03/14/1978
 
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