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| Number | Title | Issue Date |
| 7272916 | Method and device for inspecting and monitoring the seal integrity of sterile packages A system for inspecting seal integrity of a sealed package including a visual inspection system and a medical packaging system having an integral peel testing device. ... | 09/25/2007 |
| 7036287 | Method and device for inspecting and monitoring the seal integrity of sterile packages A system for inspecting seal integrity of a sealed package including a visual inspection system and a medical packaging system having an integral peel testing device. ... | 05/02/2006 |
| 6952959 | Method of designing a heat seal width This invention provides a method of designing a suitable heat seal width which is more resistant to unsealing than conventional heat-sealing, which involves the steps of; (1) heat-sealing a test piece of a sheet to be heat-sealed at a temperature lower than the fusi... | 10/11/2005 |
| 6931942 | Panel bending and testing device A panel testing device includes a frame, a first roller assembly pivotally mounted to the frame including a first roller and a second roller spaced apart from and substantially parallel to the first roller. The panel testing device also includes a second roller asse... | 08/23/2005 |
| 6763728 | Evaluation of burst test results A method for evaluating a seal on a package is disclosed. The method includes determining the value of a burst test force parameter. The burst test force parameter being a parameter that results from a force placed on the package during a burst test. The method also... | 07/20/2004 |
| 6299104 | Method and apparatus for evaluating parachutes under load A system and method for evaluating flexible structures such as textiles under load generally. A specific embodiment is shown for parachutes. A plurality of first sensors and second sensors are attached to the parachute on its canopy and suspension lines. ... | 10/09/2001 |
| 6176141 | Method for stud pull test for film formed on semiconductor device A test sample with a film and an underlying substrate representing part of a semiconductor wafer is prepared for a stud pull test by a process that includes maintaining the sample in boiling salt water for a few hours. When an epoxy stud is attached to th... | 01/23/2001 |
| 5902936 | Compression test device for paper strips The present invention relates to a compression test device for a paper strip, including means for laterally holding the strip to limit its buckling during the testing. The lateral holding means include a tube in which the strip is freely rolled with more ... | 05/11/1999 |
| 5813277 | Apparatus and method for measuring the tensile strength of fabric An apparatus for measuring the tensile strength of a textile fabric comprises a measuring system having electromagnet, a mass capable of being held in place by the electromagnet, a piezoelectric force sensor connected to said mass, and a rounded-off impac... | 09/29/1998 |
| 5616848 | Plate testing apparatus and method of testing An apparatus for evaluating the ultimate strength of a plate of material includes a fixture for holding the plate and a loading element for applying a load to the plate, The fixture has a support element for supporting the plate at first and second points... | 04/01/1997 |
| 5507189 | Apparatus for evaluating plane strain stretch formability, and method therefor Apparatus and a method for evaluating the plane strain stretch formability for thin steel sheets used in automotive bodies to provide easy evaluation of the plane strain stretch formability. The apparatus includes: a lower die and an upper die with a lock... | 04/16/1996 |
| 5465605 | Floor covering foot impact simulator A reciprocating pneumatic cylinder is mounted to drive a simulated heel at an angle of 15 to 20 degrees into a floor covering system which is mounted to move back and forth and rotate with respect to the heel impacts. The impacts are thereby varied in ang... | 11/14/1995 |
| 5424634 | Non-destructive flex testing method and means Describes a process for applying non-destructive cyclical mechanical stress to planar items in order to simulate the effects of cyclical thermal stresses. Latent defects are accelerated and screened early in a manufacturing process.... | 06/13/1995 |
| 4928533 | Burst testing apparatus A burst testing apparatus is provided. The apparatus includes a burst tester for determining the burst strength of sheet material such as paper. An automatic feeder is provided for advancing the sheet material after each successive test. A photo-optical s... | 05/29/1990 |
| 4817435 | Shear pressure gage A shear gage for measuring the pressure reached in a firearm cartridge loed within the barrel when a high caliber gun is fired. The design of the shear gage involves the shearing of a uniformly distributed loaded circular plate at its circumferential sup... | 04/04/1989 |
| 4750369 | Method and device for determining the environmental stress cracking resistance of plastic articles A method and device are disclosed for the determination of the environmental stress crack resistance (ESCR) of polymer articles made from polymers such as acrylonitrile-butadiene-styrene copolymers, polycarbonate, polystyrene and blends thereof. The metho... | 06/14/1988 |
| 4404857 | Seam tester A portable seam tester is provided for testing the seam strength, on the job site, of large sections of flexible sheet material formed by seaming together smaller size panels. The tester has a piston and cylinder mechanism carrying spaced toggle action cl... | 09/20/1983 |
| 4395917 | Apparatus for testing glass Apparatus for the destructive testing of glass sheets. The sheets to be tested are subjected to a differential pressure condition by establishing a vacuum on one side thereof and lowering the pressure on such side until the glass deflects to its breaking ... | 08/02/1983 |
| 4365638 | Apparatus for ascertaining the firmness of tissue Apparatus for measuring the firmness of tissue, for example of skin in vivo, comprises a compartment open at one end and having a deformable bulb at the other end to allow the compartment near the open end to be subject to internal suction deforming a por... | 12/28/1982 |
| 4133203 | Apparatus for testing the burst strength of a line of perforations Apparatus for testing the burst strength of a line of perforations in a sheet of paper. The testing apparatus comprises a first means fixedly mounted in a frame for gripping a sheet of paper on one side of a line of perforations extending across the paper... | 01/09/1979 |
| 4055071 | Method and apparatus for determining the wet strength of paper An apparatus and method are disclosed for determining the wet strength of paper. It is necessary to know the wet strength of paper in order to determine the runnability of pulp in the papermaking machine. Present devices for measuring the wet strength of ... | 10/25/1977 |
