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Class 73/573 - Hardness or compliance


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the test body is subjected to means,
No. of patents: 64
Last issue date: 12/27/2011


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NumberTitleIssue Date
8082791Method and device for determining the softness of sanitary papers and textiles
The invention relates to an apparatus and a method for determining the softness of a hygienic paper or textile with at least one ply, wherein an element (106) is arranged relative to a positionally fixed sample (P), with at least one ply, of the hygienic pape...
12/27/2011
7987717Method for noncontact testing of the degree of hardening of ink and coating films
For more efficient and energy-saving drying of ink and/or coating films in printing machines, the drying or hardening process must be better monitored. Therefore a method is proposed for determining the degree of hardening of one or more printed ink and/or coating f...
08/02/2011
7565841Operating frequency selection method for hardness measurement system, operating frequency selection apparatus, and hardness measurement system
In a hardness measurement system, selecting an operating frequency is facilitated by using a phase shift circuit. A hardness sensor is connected to an operating frequency selection apparatus and in a free end state the amplitude versus frequency characteristic is ac...
07/28/2009
7365552Surface mount package fault detection apparatus
A fault detection apparatus for surface mount packages is provided. The apparatus can include a retainer for releasably securing a circuit board such as a printed circuit board having an electrical component mounted thereon via a ball grid array surface mount packag...
04/29/2008
7319043Method and system of trace pull test
The present invention provides an efficient test method and system for testing the IC package, such as BGA types of packages. With the present invention, manufacturer can have an easier way in testing various types of packages, including newer types. Manufacturer al...
01/15/2008
7228747Device for detecting rail movement
A device for holding a transmitter and a receiver for detecting a deformation state of a component. The device includes a first holding part and a first receptacle, the transmitter being disposed on the first holding part via the first receptacle, wherein the first ...
06/12/2007
7168885Control system and method for a vibratory mechanism
A method is provided for controlling a vibratory mechanism. The method includes sensing a vibratory amplitude of the vibratory mechanism and determining a decoupling point of the vibratory mechanism. An output signal is generated based on the determination of the de...
01/30/2007
7107159Systems and methods to determine elastic properties of materials
The present invention provides systems and methods to used a measured driving-point response of a nonlinear material to determined one or more elastic properties of the material. The present invention takes advantage of the full information represented by the transi...
09/12/2006
7089823Vibratory mechanism controller
A controller for use in a vibratory mechanism includes an amplitude control circuit that generates an amplitude control signal that varies from a minimum value to a maximum value. The vibratory mechanism is adapted to vibrate at an amplitude based on an amplitude co...
08/15/2006
7073374Soil compaction measurement on moving platform
An apparatus and method are provided for the in-situ measurement of the stiffness of a surface. The apparatus includes a platform, which is movable relative to the surface. A stiffness measurement device is supported by the platform in a stationary position relative...
07/11/2006
7026943Acoustic wave ice and water detector
An acoustic wave sensor utilizes one or more acoustic waves trapped in an acoustic wave cavity to detect the presence of one or more substances on a surface of the acoustic wave cavity. To detect the presence of ice, a trapped torsional acoustic wave is used. To det...
04/11/2006
6998559Detection system for sorting apparatus
The present invention relates to a system for determining characteristics of products of generally unequal size, e.g. apples, which are conveyed on product carriers, such as rollers of a conveying apparatus, and pass the system, the system comprising a detection dev...
02/14/2006
6976387Hardness measuring device comprising a housing and a penetration body in particular a manual device
The hardness measuring device (18) is provided with a) a penetration body (20), which penetrates a workpiece (28) along a penetration vector (58) during a measuring process, b) a housing (30) which embodies a guide track (32...
12/20/2005
6912903Soil compaction measurement
An apparatus and method are provided for the in-situ measurement of the stiffness of a layer of soil or other surface of interest. The apparatus includes a contact foot for engaging the surface and a drive transducer coupled to the contact foot for applying a vibrat...
07/05/2005
6895066Measuring head and measuring assembly for a nuclear fuel rod
A measuring head is used in measuring an assembly part of a nuclear facility, such as a fuel rod, a fuel assembly box, or a spacer of the fuel assembly. The measuring head is capable of augmenting a comparatively large data base representing the overall aging state ...
05/17/2005
6854331Substance characteristic measuring method and substance characteristic measuring instrument
The present invention facilitates measurement of characteristic values corresponding to hardness of a material to be measured inside a living body using the response of a vibration transmission characteristic without the need to remove other tissue materials of the ...
02/15/2005
6817246Distortion detector
A device for detecting different conditions of a component, such as distorted conditions, movements and loaded conditions. Said device comprises a transmitter and a receiver which are located independently on at least one component at a distance from one another and...
11/16/2004
6807861Instrument for noncontact measurement of physical property
A noncontact physical property measurement instrument which easily and accurately measures physical properties of an object using a nondestructive, noncontact sensor. A noncontact physical property measurement instrument 1 is provided with a transmitting sect...
10/26/2004
6790186Device for evaluating the dynamic, mechanical properties of materials
A device (10) for evaluating dynamic, mechanical properties of materials includes an elongate cylindrical housing (12) projecting from a handle (14). The housing (12) defines a passage (16). One end of the passage (16) is cl...
09/14/2004
6675112Cure monitoring
A method and apparatus for monitoring the progress of the solidification of a solidifying material involves using a transmitter to transmit a relatively low frequency compression wave to the solidifying material. A receiver is provided for detecting the r...
01/06/2004
6664067Instrument for high throughput measurement of material physical properties and method of using same
An apparatus and method for screening combinatorial libraries of materials by measuring the response of individual library members to mechanical perturbations is described. The apparatus generally includes a sample holder for containing the library member...
12/16/2003
6619125Method and device for determining the degree of compaction during ground compaction
A method and a device are provided for determining the degree of compaction during ground compaction with a roller or a vibrating plate compactor comprising a top section and a vibrating plate. The method involves determination of one or more amplitude va...
09/16/2003
6585666Arthroscopic diagnostic probe to measure mechanical properties of articular cartilage
A mechanical diagnostic probe is used to determine the thickness of articular cartilage, so that any degeneration in the articular cartilage can be detected at an early stage. The probe advantageously allows for calibrating the speed of the ultrasound in ...
07/01/2003
6551019Device for checking the compaction for vibration compaction devices
A device for checking the compaction, in particular, of black top pavement in street and roadway construction, using a vibration roller drum that is provided with a compaction checking device is provided. In the compaction of black top pavement, the measu...
04/22/2003
6539781Method and device for determining the hardness of products such as fruit
In a method for determining the hardness of a product, for instance fruit, during a measuring cycle, comprising: supporting the product, tapping the product with a tapping device at least one position of the product, as a result of which the product as a ...
04/01/2003
6405595Apparatus for measuring torsional stiffness of a golf shaft
An apparatus for determining the torsional stiffness of a shaft comprises a rigid frame having a collet for securing one end of the shaft to be measured the rigid frame. A second collet secures the opposite end of the shaft to an inertial weight, which is...
06/18/2002
6289734In-situ non-destructive audiosonic identification system for visco-elastic materials
The present invention provides a portable test system for in-situ, non-destructive identification of visco-elastic material. The system includes a probe-like member coupled to a controller, wherein the controller is responsive to an output signal from the...
09/18/2001
6173601Method and device for characterizing granule strength
The present invention provides a method and device for measuring granule impact strength by vibrating a small container of granules at a well-controlled amplitude in order to inflict reproducible damage to the granules. Damage to the granules is measured ...
01/16/2001
6004076Method and apparatus for monitoring soil compaction
A method of monitoring of the level of compaction of a soil surface undergoing compaction by an impact compactor which includes a rotatable, multi-sided compactor mass that applies periodic impact blows to the soil surface when rolled over that surface. I...
12/21/1999
5942679Compaction index
In compacting an asphalt layer which is continuously deposited by a paver machine, a compacting machine reciprocates behind the paver. With the aid of signals from sensors (3) for temperature, sensors (5) for movement velocity of the compacting machine, s...
08/24/1999
5918266Method and apparatus for non-destructive measurement of firmness index and calculation of firmness
A firmness measuring method and device for non-destructive testing of objects (such as fruits) is disclosed. The device comprises the following components: a means to affect the size and/or shape of the object(s) through application of a compressive force...
06/29/1999
5766137Frequency deviation detecting circuit and measuring apparatus using the frequency deviation detecting circuit
A hardness measuring apparatus in which a frequency deviation detecting circuit is used has a contact element, an oscillator, a self-oscillating circuit and a gain variation compensating circuit. The self-oscillating circuit feeds back oscillation informa...
06/16/1998
5691473Method and equipment for measuring firmness of fruits and vegetables
The invention relates to non-destructive measurement of the firmness of fruits and vegetables, particularly to methods and equipment for measuring the firmness of such edible objects in order to establish their ripeness or maturity stage, not only after t...
11/25/1997
5533398Method and apparatus for testing lead connections of electronic components
To test the quality of solder bonded lead connections of a package by applying a shearing force to the leads using ultrasonic vibration and by measuring the resultant strain. A probe 32 is pressed against the surface of a lead 12 and vibrated by a piezoel...
07/09/1996
5495771Elasticity measuring method and elasticity measuring apparatus
There are provided an elasticity measuring method of measuring an elastic constant of elasticity of an elastic body, for example, an elastic rubber, an organism or a living body, etc., which is soft and rather incompressible, by means of measuring an inte...
03/05/1996
5365457In situ dynamic material property measurement system
Material is periodically indented by a probe driven at an oscillation frency by a shaker regulated by an analyzer to which input measurement data is fed from a sensing head connecting the shaker to the probe for in situ measurement of material resistance...
11/15/1994
5359879Scanning micro-sclerometer
A scanning micro-sclerometer measures changes in contact stiffness and correlates these changes to characteristics of a scratch. A known force is applied to a contact junction between two bodies and a technique employing an oscillating force is used to ge...
11/01/1994
5177415Apparatus and method for controlling a vibratory tool
An apparatus 400 and a method are provided for increasing the density of a compactible material 10 while continuously evaluating the density of the material. The evaluation of material density is carried out by calculating the total of the static, dynamic...
01/05/1993
5164641Apparatus and method for controlling the frequency of vibration of a compacting machine
An apparatus and a method are provided for controlling the frequency of vibration of a compacting machine. The frequency control is carried out by the apparatus which determines the actual time at which a ground contacting member of the compacting machine...
11/17/1992
5161521Oscillation degree measuring apparatus
An oscillation degree measuring apparatus measures the fixing state of an object to be measured as a numerical value of the degree of oscillation and comprises an ultrasonic exciter for generating ultrasonic waves which shock the object and exciting oscil...
11/10/1992
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