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Class 33/501.05 - Comparator


Subclass of Class 33 - Geometrical instruments
Definition: Subject matter having means for comparing an article or
No. of patents: 27
Last issue date: 03/25/2008


NumberTitleIssue Date
7346997Validating device for validating formed parts
This invention provides a validating device for validating at least one dimension of a part as being at least a minimum magnitude. It may also validate a dimension of a part as being no greater than a maximum magnitude or between a minimum magnitude and maximum magn...
03/25/2008
7100299Installation tool for aerospace fastening system
A system, for installation of fastening systems to a structure, includes a fastening system installation specification, which includes dimensional and qualitative requirements for components of the fastening systems; and a tool. The tool includes an outer housing ha...
09/05/2006
7080461Installation tool for aerospace fastening system
A system, for installation of fastening systems to a structure, includes a fastening system installation specification, which includes dimensional and qualitative requirements for components of the fastening systems; and a tool. The tool includes an outer housing ha...
07/25/2006
7051635Ball-lock insert assemblies
The invention provides a ball-lock insert assembly adapted to be mounted axially in a mount opening formed in a holder plate having a desired thickness. The ball-lock insert assembly comprises an insert body having an axis and an elongated interior recess extending ...
05/30/2006
7040032Method and device for measuring whether a process kit part meets a prescribed tolerance
A go no-go gauge and method for verifying whether a process kit part used within a plasma chamber of a plasma processing tool has accumulated excessive wear or deposits. The gauge includes a component for verifying whether a dimension of a process kit part feature v...
05/09/2006
6532677Measuring apparatus for planer
A molded limit gauge for measuring workpiece thicknesses. The limit gauge includes a body having one or more elongate ridges extending longitudinally therealong. Each ridge has a plurality of notches extending laterally through its upper portion. Each not...
03/18/2003
6513256Device for moving objects in order to compare the dimensions of said objects and method for comparing dimensions using same
The invention relates to a device for displacement of blocks, with a view to comparison of their dimensions by means of a measuring apparatus, which device includes a support, referred to as the measuring table, which defines a supporting and sliding plan...
02/04/2003
6449862Rolling weld support gauge block for transmission assembly
A weld support gauge block for setting a fused distance between a plate portion and a hat portion of a planetary gear carrier is provided, which includes a first side plate for insertion into and removal from a window cut out in a cylindrical wall of the ...
09/17/2002
6389704Thread ring gauge holder with torque control
A thread ring gauge holder that is used with a thread ring gauge to eliminate the variance in applied torque from different people using the thread ring gauge. This device allows the thread ring gauge to be protected from an excessive amount of torque and...
05/21/2002
6360447Empty envelope assurance apparatus and method
An empty envelope assurance system is provided. The system includes a conveyor for conveying an opened envelope having a front face and a rear face along a path of movement. The conveyor is arranged such that any contents of the envelope rests against one...
03/26/2002
6334258Inspection device for examining a piece of aperture graphite of an extraction electrode
An inspection device for examining a piece of aperture graphite of an extraction electrode, and the aperture graphite includes a to-be-examined curve and a to-be-examined engagement portion. The inspection device includes a sidewall surface having a stand...
01/01/2002
6332275Margin inspector for IC wafers
A margin inspector for IC wafers includes an upper plate and a supporting portion. The upper plate, which is formed as a transparent plate, has a plurality of concentric circular segments thereon for establishing a set of reference lines to examine the pe...
12/25/2001
6324768Ball lock punch retainer and checking gage system
A ball lock punch retainer system, including a punch, with a ball receiving grooved seat therein, a punch retainer body, a backing plate, a spring hole located in the retainer body, a ball positioned within said spring hole, a spring located in said sprin...
12/04/2001
5761821Gauging the diameter of eccentric cylindrical workpiece parts
A gauge for determining the diameter of an eccentric cylindrical workpiece part during grinding. The measurement is effected by a pair of fingers adapted to engage diametrically opposite regions of the part. The fingers are carried at the ends of a pair o...
06/09/1998
5718055Interlock gauge
A gauge for installation and adjustment of an interlock mechanism in elevator systems includes a gauge body with a horizontal line level and a first and a second arms protruding from the gauge body. The first arm is sized to establish a horizontal distanc...
02/17/1998
5665973Penetrant transparent comparator
A plurality of transparent members are provided each of which has an elongated flat portion with a tip portion at one end forming an obtuse angle relative to the elongated flat portion with the tip portion having a narrowed end, and a spot of material loc...
09/09/1997
5165176Gage for measuring outer diameters
An improved gage for measuring the diameters of threaded members comprises a frame having two platforms extending therefrom, and a support member mounted to the frame for receiving threaded members to be measured. A gage member having a plunger is mounted...
11/24/1992
5109609Ball-point surface checking device and method
A device and method for checking the roundness of ball-point type contacts associated with a measuring device and used to engage a threaded surface of a specific thread type to facilitate measurement of critical dimensional parameters of a threaded member...
05/05/1992
4779350Conveyor gage apparatus
An alignment gage (1) for use in aligning rails (2) of conveyor systems. The apparatus comprises a pair of plate members (10) each configured for mounting on and riding finger members (21) attached to a moving carrier (20) positioned in a channel (22) of ...
10/25/1988
4777731Taper-measuring device and method
The measuring bar consists of an elongated rigid sectional shaft to the ends of which are secured two identical diametrically larger spherical bodies. Adjacent and inwardly of each body, there is provided a pair of stabilizer discs eccentrically connected...
10/18/1988
4633590Tube wall thickness measurement apparatus
An apparatus for measuring the thickness of a tube's wall for the tube's entire length and circumference by determining the deviation of the tube wall thickness from the known thickness of a selected standard item. The apparatus comprises a base and a fir...
01/06/1987
4333237Apparatus for comparing the distance of two balls from a third ball
An apparatus for comparing the distances of two balls from a third ball which all lie on a horizontal plane comprises a telescopic rod pivotally mounted to swing around the vertical axis of a stand which rests on the same plane as the balls. At the free e...
06/08/1982
4227310Heads for gaging devices and fixture for setting same
A gaging head for the in process gaging of a surface such as a cylindrical surface while it is being honed, ground, or machined by a device which increases the diameter thereof, said head having a work engaging portion of a size and shape to accurately te...
10/14/1980
4176461Device for measuring the deviation of object with nominally circular cross-section from the round shape
The device has a base mounting a support which constantly contacts the surface of an object being measured, the object having a nominally circular cross-section. The support is a plurality of essentially self-adjusting balance beams arranged in steps or i...
12/04/1979
4064632Tire caliper
A tire caliper that can be made of very few parts and that can be very quickly and easily used to compare the diameters of the road engaging tread portions of a plurality of tires....
12/27/1977
3974569Automatic station for measuring the sizes of mechanical workpieces
An automatic measuring station for measuring the dimensions of workpieces comprising a conveyor for loading and unloading workpieces; a slide supporting, through parallel leaf springs having the ends clamped to the slide, positioning and reference element...
08/17/1976
3940856Micrometer calipers
There is disclosed in the present application a micrometer caliper or gage of the comparator type including an expansible measuring member detachably coupled to an amplifying and indicating mechanism. The mechanism includes an index pointer and a dial whi...
03/02/1976
 
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