Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7905151 | Snap chuck A device and method for measuring snap member detaching force, the snap member detaching force measurement device includes a cloth holding unit for holding cloth on the periphery of the snap member attached to the cloth; a snap chucking unit for chucking the snap me... | 03/15/2011 |
| 7866217 | Device and method for measuring snap member detaching force, and snap chuck A device and method for measuring snap member detaching force, the snap member detaching force measurement device includes a cloth holding unit for holding cloth on the periphery of the snap member attached to the cloth; a snap chucking unit for chucking the snap me... | 01/11/2011 |
| 7380467 | Bond integrity tool The present invention is directed to a bond integrity tool, which includes a shoulder housing, a collar shaft, and an end cap. The collar shaft has a neck portion and a mouth portion. The neck portion is disposed within the shoulder housing, and the mouth portion is... | 06/03/2008 |
| 7258022 | Micro-tensile testing system A micro-tensile testing system providing a stand-alone test platform for testing and reporting physical or engineering properties of test samples of materials having thicknesses of approximately between 0.002 inch and 0.030 inch, including, for example, LiGA enginee... | 08/21/2007 |
| 7201061 | Three dimensional, real time load frame alignment apparatus and method A system and method for assisting in real time alignment of an alignment specimen within a load frame. In one implementation an instrumented alignment specimen is used to provide information from which the deflection of the specimen at various points along the speci... | 04/10/2007 |
| 6938494 | Load test machine A load test machine includes a base block, at least a pair of posts rising from the base block, a cross head spanning between the pair of posts, and an actuator mounted on the base block or the cross head. The actuator is able to apply a load on a test piece positio... | 09/06/2005 |
| 6668231 | Sheet parameter measurement A measuring device useful for measuring mechanical properties of highly flexible or limp sheet materials. The device includes a base, a pair of clamping members, with one of the clamping members being movable away from and toward the second clamping membe... | 12/23/2003 |
| 6561019 | Method and apparatus for tensile testing a spliced connection of fibers in a fiber splicing device In a fiber splicing device, an adjustment apparatus for moving a first fiber-section perpendicular to its end face is designed such that it is composed of at least one piezo-actuator and a drive. After the splicing of the two fiber ends, the piezo-actuato... | 05/13/2003 |
| 6370962 | Dynamic high speed tensile tester A system is provided for determining the tensile characteristics of a sample under dynamic conditions. The system includes an apparatus adapted to accelerate the sample to a desired test velocity and maintain the test velocity through a predetermined test... | 04/16/2002 |
| 6148676 | Tensile testing machine Tensile testing device, which measures the strain for a tensile testing specimen (24) by means of the relative displacement of the fastening means (2, 14), as a result of that the attachment of the tensile testing specimen (24) is performed in such a mann... | 11/21/2000 |
| 6033913 | Detection of ligand Interaction with polymeric material A method and apparatus for measuring ligand binding to DNA or protein uses changes in the mechanical properties of strips of the DNA or protein to detect the formation of ligand complexes. Samples strips are prepared by pouring protein solution onto a gla... | 03/07/2000 |
| 5920482 | Methods and systems for varying parameters at a needle swaging station Methods and procedures for varying parameters at a work station where different size and/or type needles are automatically sutured to different size and/or type sutures, such as: a method and system for applying a predetermined, given tension to different... | 07/06/1999 |
| 5918284 | Pull test apparatus for permanently attached sutures A semi-automated machine for singulating individual surgical needles from an bulk supply and attaching a suture to the surgical needle is described. Each of the surgical needles has a suture receiving opening formed therein for receiving a suture. The mac... | 06/29/1999 |
| 5911166 | Tensile strength tester with clamping load application control A testing apparatus for measuring the tensile strength of a flat sheet of material with a set of clamping jaw members having respective clamping surfaces. A cylinder is provided for closing the first and second jaw members in a clamped position. Transitio... | 06/08/1999 |
| 5844142 | Pull test apparatus for permanently attached sutures A semi-automated machine for singulating individual surgical needles from an bulk supply and attaching a suture to the surgical needle is described. Each of the surgical needles has a suture receiving opening formed therein for receiving a suture. The mac... | 12/01/1998 |
| 5724257 | Foundry sand testing apparatus and system Foundry sand testing apparatus, method and system are provided for testing foundry sand. A computer foundry sand testing system includes at least one sensor for sensing predetermined characteristics of the foundry sand and for generating a signal. A proce... | 03/03/1998 |
| 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 |
| 5578762 | Method and device for the viscoelastic properties of polymeric coatings of optical fibers A method and device are provided for measuring the viscoelastic characteristics of polymeric coatings of optical fibers directed on a coated fiber. The ends of the fiber are inserted into a pair of clamps which are shaped in such a way as to hold the coat... | 11/26/1996 |
| 5481923 | Holder of fatigue test piece The improved sample holder comprises a cylinder portion 5 having a center hole through which a test piece is inserted, a reciprocating ram rod 7 that is inserted into said hole and which is vertically slidable under hydraulic pressure to push down the tes... | 01/09/1996 |
| 5421205 | Apparatus for the rapid ultimate material strength testing of test samples The ultimate tensile strength of a test sample is tested in a high speed testing machine having a frame (2), a force measuring device (9A), and a load application mechanism (3, 4) for applying a loading stroke to the test sample after a loading piston has... | 06/06/1995 |
| 5367900 | Can tester The present invention includes a can tester having a main body for holding a can, a mechanism for positioning and securing the can, a movable measuring portion and a mechanism for moving the movable measuring portion. The mechanism for moving the slidable... | 11/29/1994 |
| 5337614 | Fixture for testing mounting integrity of heat sinks on semiconductor packages, and method of testing A reliable, repeatable, well-characterized, safe technique for testing the mounting integrity of heat sinks adhered to semiconductor packages is disclosed. Generally, a semiconductor package is secured in a tensiometer, the heat sink is clamped and secure... | 08/16/1994 |
| 5329820 | Materials testing grip A materials testing grip for tensile testing of small fibers includes a pair of inwardlyconverging surfaces into which a fiber may be easily pressed, and which in fiber tension is characterized by increased gripping force.... | 07/19/1994 |
| 5271279 | Apparatus for measuring the elongation of sample strips An apparatus for measuring the respective elongations of several sample strips (13), comprises: a vertical frame (51) provided with a fixed upper gripping jaw (27) and a mobile lower gripping jaw (15) to maintain each of the strips (13), the lower grippin... | 12/21/1993 |
| 5259174 | Jaw for traction tests on test piece slivers without heels The linings of a jaw for traction tests on test piece slivers are made of a moulded material having evolutive hardness and shearing modulus with a variable thickness according to the height of the jaw so as to distribute the clamping forces over this heig... | 11/09/1993 |
| 5224386 | Tensile testing grip apparatus Grip apparatus for tensile strength testing of geosynthetic materials includes a pair of opposing first and second grip bars slidably mounted in a frame. Selectively operable locking elements carried on the frame and the first grip bar enable selective fi... | 07/06/1993 |
| 5193397 | Grip for tensile tests A grip for the performance of tensile tests on elongated specimens such as steel wires, wherein at least the face of the grip which has an engagement with the elongated specimen is provided with roughnesses. These roughnesses are virtual pyramids in shape... | 03/16/1993 |
| 4909085 | Mechanical property testing machine In accordance with the present invention an improved alignment assembly is provided wherein when a threaded fastener is the test specimen, the fastener is gripped by a collet made of two longitudinally split, threaded, and tapered pieces held together wit... | 03/20/1990 |
| 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 |
| 4452088 | Method and apparatus for gripping uniaxial fibrous composite materials A strip specimen is cut from a unidirectional strong, brittle fiber composite material, and the surfaces of both ends of the specimen are grit-blasted. The specimen is then placed between metal load transfer members having grit-blasted surfaces. Sufficien... | 06/05/1984 |
| 4292852 | Method and apparatus for physically testing the integrity of the connection between an electrode assembly and a terminal conductor of an electrochemical cell In the manufacture of electrochemical cells, the integrity of the mechanical joint between a coiled plate electrode assembly and a terminal conductor welded thereto is tested on the assembly line by applying to the terminal conductor a predetermined minim... | 10/06/1981 |
| 4107982 | Vessel for atmosphere for use with material testing device A vessel for holding the atmosphere in which a test piece is tested has a test atmosphere chamber and an auxiliary chamber intercommunicably formed in a casing and a piston disposed freely slidably in the casing with the upper portion inside the auxiliary... | 08/22/1978 |
| 4096741 | Materials testing device The invention provides a d.c. motor and motor control circuit to conduct characterization tests on materials by applying constant loads to or affecting constant displacements of physical samples of various materials for transient tests purposes. The actua... | 06/27/1978 |
| 4073185 | Test piece gripping device The housing of a test piece gripping device is rectangular and includes two raised pad surfaces extending across the width of the housing at different locations. One of the raised pad surfaces extends across the housing at its upper front face while the s... | 02/14/1978 |
| 4059992 | Apparatus for testing the tensile strength of sheet material An improved testing device for testing the tensile strength of sheet material, such as paper, including a first pair of vertically moving jaws mounted on a support and a second pair of vertically moving jaws hanging from the first support in a pendulum ma... | 11/29/1977 |
| 4044595 | Short span tensile tester system A short span tensile tester for testing a sheet such as a paper web is provided with two pairs of clamping jaws mounted in adjacent clamping relation, to clamp a portion of sheet material therebetween, one pair of jaws being pivotably mounted to swing und... | 08/30/1977 |
| 4041806 | Testing cord-to-elastomer adhesion The adhesion of cord or wire to the elastomer, rubber, or rubbery material is measured by exerting forces or loads collinear with the cords or wires such that one of the cords or wires is pulled from between a pair of cords. The three cords are embedded i... | 08/16/1977 |
| 4000644 | Method and apparatus for testing tensile properties A single ligament specimen is used to test the tensile properties in the short transverse direction of metal plate. A method of testing the specimen includes holding the specimen on one side of the ligament stationary and applying force to the other side ... | 01/04/1977 |
| 3954005 | Proof loading apparatus for testing rod-like articles Proof Loading apparatus for the non-destructive testing of rod-like articles, characterized in that it comprises a jack housing (1) incorporating at least one hydraulic ram (2, 3), first and second gripping devices (17) arranged at opposite ends of the ja... | 05/04/1976 |
| 3938373 | Method and apparatus for tensile testing of metal foil Accurate, reproducible results in the tensile testing of thin metal foils are obtained by a method which comprises before placing the test specimen in a tensile testing machine, working the side edges of the test specimen until the edges are parallel and ... | 02/17/1976 |
