Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7739919 | Test specimen holder A test specimen holder includes at least one pair of wedges, a plurality of pistons and a tie bar connected to each of the pistons. A single cylinder body is operable with each of the pistons and the wedges. The cylinder body is adapted to urge the wedges together w... | 06/22/2010 |
| 7587946 | Method and apparatus for testing roof edge components A testing apparatus and method for simulating wind loads and evaluating wind resistance of a building component test specimen such as a sheet-metal roofing component. One or more arrays of pneumatic cylinders apply forces according to a specified test protocol to de... | 09/15/2009 |
| 7337648 | Clamp and repair tool A tool for gripping, clamping or holding an object, wherein the tool has a handle portion, a linkage portion and a working portion, and wherein the working portion includes two workpiece contacting surfaces, at least one of the surfaces shaped to generally conform t... | 03/04/2008 |
| 7320242 | Tensile impact apparatus The present invention generally relates to a tensile impact apparatus that is designed to give dynamic stress-strain curves and fracture characteristics for a rubber specimen undergoing tensile impact loading. More particularly, this invention relates to a tensile i... | 01/22/2008 |
| 7086325 | Single sensor press system A tortilla press utilizing a single sensor provides improved efficiency and accuracy. The press has a belt driven by a motor and a platen driven by a hydraulic cylinder. The motor is controlled by an AC inverter. A programmable logic controller (PLC) controls the AC... | 08/08/2006 |
| 7014235 | Inertia actuation for robotic gripper mechanism A method for gripping objects by means of a robotic gripper mechanism is provided, wherein the gripping mechanism comprises gripping jaws, a wedge actuator between the gripping jaws, wherein the wedge actuator moves the gripping jaws together and apart as it slides ... | 03/21/2006 |
| 6912916 | Polyvalent test stand A test stand for allowing the testing of both a pull-type lifting apparatus and a push-type lifting apparatus. The test stand includes a base and a carriage component, the carriage component including a load transmitting section and a sensor receiving section. The l... | 07/05/2005 |
| 6629466 | Test specimen holder A test specimen holder for holding a test specimen in a material testing machine includes a base member having a piston chamber, a valve chamber fluidly coupled to the piston chamber, a port fluidly coupled to the valve chamber and an end couplable to a m... | 10/07/2003 |
| 6301972 | Substantially frictionless bearing device for supporting and testing small captured members An apparatus for applying a frictionless normal or radial force to a captured member. The apparatus has a fixed fluid bearing and a preloading, axially movable fluid bearing spaced apart from the fixed fluid bearing. A captured member is positioned betwee... | 10/16/2001 |
| 6247370 | Two dimensional stress relaxation testing device The present invention relates to a two dimensional stress relaxation testing device in which a plus shaped sample is stretched in mutually perpendicular directions simultaneously to monitor the stress and also the relaxation process of any sheet material ... | 06/19/2001 |
| 6050148 | Dynamic strength tester for paper cores A testing apparatus for determining dynamic strength of sample paper cores includes a rotatably driven pneumatic chuck for engaging the inner surface of a sample core to rotatably drive the sample core, and a variable-tension belt assembly having a flexib... | 04/18/2000 |
| 5948994 | Multi-functional test machine A multi-functional test machine is provided. The machine includes a frame with a pair of upright columns parallel extended upward from a foundation, an upper crosshead system slidably engaged on the columns and actuated by a pair of hydraulic jacks buttin... | 09/07/1999 |
| 5945607 | Test specimen holder A test specimen holder for holding a test specimen in a material testing machine that applies force loads to the test specimen includes a base member having a first end coupleable to the material testing machine and a second end remote from the first end.... | 08/31/1999 |
| 5641912 | Method for remote application of variable load and/or displacement to specimens, components, or systems A method and apparatus for applying a force, displacement, or both to specimens, components, or systems by using a remote variable load/deflection device. The method enables testing of materials under actual in-service conditions. A displaceable container... | 06/24/1997 |
| 5581040 | Multi-functional hydraulic grip A hydraulic grip suitable for use in both tensile and compressive loading of a specimen comprises generally a main body and an outer housing to form a pair of annular chamber thereinbetween. Hydraulic fluid under pressure alternately introduced into the c... | 12/03/1996 |
| 5490432 | Kit for operating upon bearings A first kit includes a manually operable hydraulic pump, a hose and a fitting for transferring the pressure in the pump to the hose. A second tool kit for bearings of relatively small size includes a fitting for coupling to the hose in the first kit and a... | 02/13/1996 |
| 5322301 | Chucking tool with a wedging action for testing machines A clamping or chucking tool for clamping a test sample in a testing machine has a clamping housing for applying a wedging action to the sample with the aid of one or two clamping jaws that are activated by an operating member that is inserted into the cla... | 06/21/1994 |
| 5095757 | Specimen grip with remote actuation A specimen grip for a test specimen that has an actuator for operating the grip remotely mounted and coupled to the grip through a tubular housing which provides for temperature isolation between the grip and the actuator. The grip is specifically adapted... | 03/17/1992 |
| 5060521 | Reverse-direct stress testing device A clamping device for applying loads to a test specimen including spherical egments connected to ends of the specimen. The spherical segments are in turn gripped by a race which allows pivotal movement of the segment. When the system is activated the race ... | 10/29/1991 |
| 4762011 | Electronic gage A gage for quickly testing complex articles for conformance to a standard comprises a fixture configured according to the standard for holding the article and clamping the article into engagement with bearing surfaces. The bearing surfaces are instrumente... | 08/09/1988 |
| 4721000 | Axial loading material testing A grip for a material testing load frame including a grip plate for engaging the end of an elongated sample having a longitudinal axis and a grip body having one end for connecting to the grip plate and another end for connecting to a loading component of... | 01/26/1988 |
| 4537080 | Side loading specimen grip Hydraulically actuated grips are constructed to permit loading of specimens from either side of the grips. The grips are particularly adapted for use with flat specimens, are easily actuated, and are symmetrically designed so that when actuated, the grips... | 08/27/1985 |
| 4063453 | Adjustable space frame for testing machine A load frame used for testing purposes which includes means for reacting side loads between upper and lower cross heads of platens of a press or load frame.... | 12/20/1977 |
| 4026145 | Hydraulic grip for tubular mechanical properties specimen A hydraulically actuated collet type grip with an elastic support structure to allow for the axial bending needed to compensate for diametral dimension changes in the specimen gage section to be accomodated within the grip rather than within the tubular s... | 05/31/1977 |
| 4019378 | Hydraulic chucking head This hydraulic chucking head, especially for testing machines wherein the test sample must be held without play in the direction of load application, includes at least two test sample holding pistons movable along a common axis toward each other and towar... | 04/26/1977 |
