The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
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| Number | Title | Issue Date |
| 7137323 | Replaceable and rotatable tool with function of measuring twisting forces A replaceable and rotatable tool with a function of measuring twisting forces comprises a tool body; a driving portion formed at one end of the tool body; the driving portion including a pivotal unit and an engaging unit; one end of the pivotal unit being secured to... | 11/21/2006 |
| 7111532 | Torque wrench A torque wrench includes a driving shank received in a handle and having an intermediate portion pivotally attached to the handle with a pivot axle, and having two projections, a follower is slidably received in the handle and biased to engage with the driving shank... | 09/26/2006 |
| 7047849 | Wrench capable of counting the number of times its torque reaches set values A wrench includes a pipe, a lever, a first wedge, a second wedge, an elastic element, a counter and a sensor. The lever includes a portion put in and pivotally connected with the pipe. The first wedge is attached to the portion of the lever. The second wedge is in c... | 05/23/2006 |
| 7021179 | Pressure-operated power screwdriver having a measuring section The power screwdriver comprises a functional part (11) with a housing (14) through which a shaft (17) passes. The shaft (17) is provided with a toothing (18), into which a ratchet lever of the functional part (11) engages. A... | 04/04/2006 |
| 6948410 | Torque wrench with sleeve for locking rotatable handle A torque wrench is provided having body and a handle that is rotatably mounted to the body for adjusting the torque setting, and an axially movable sleeve operable to selectively lock the handle. The sleeve includes a rigid member and an elastomeric member, such as ... | 09/27/2005 |
| 6945144 | Torque wrench with finite plurality of selectable torque values A manually operated torque wrench is capable of providing a finite plurality of selectable torque values. The torque wrench has a wrench head, a handle, and a torque-responsive mechanism for producing an indication when a torque value has been applied by the torque ... | 09/20/2005 |
| 6886434 | Wrench with a fixed maximum operational torque A wrench includes a drive member for driving a fastener, a retainer securely engaged with the drive member to move therewith, and a casing having a compartment for accommodating the retainer. The casing includes a retaining section defining a retaining space for ret... | 05/03/2005 |
| 6655242 | Torque wrench with variable-arm clicker mechanism A torque wrench (40) with a variable-arm clicker mechanism, comprises a substantially tubular body (41), equipped with a handgrip (18) from which protrudes a ratchet gear element (4), suited for engaging with the blocking device which must be tightened. I... | 12/02/2003 |
| 6463834 | Torque wrench A tang engaging and stability structure has a tang engaging portion and a pair of stabilizing ear members spaced apart from one another in the direction of the pivot axis. The ear members are positioned on opposing sides of a rear end portion of the tang ... | 10/15/2002 |
| 6162053 | Analog dental wrench There is provided an analog dental torque wrench in which, at a given level of torque imparted to a dental work object, force communicated by a compression spring through an interface impart against a ball bearing will cause rotation of a handle and media... | 12/19/2000 |
| 6062115 | Audible signal torque wrench An audible torque wrench including a head having a tool connecting part. A handle is operatively attached to the head in order to cause rotation thereof. A grip is pivotably attached at one of its ends to the handle. A spring is fastened between the grip ... | 05/16/2000 |
| 5156072 | Torque wrench A torque wrench capable of pre-setting specified torque values is disclosed which comprises an elongated housing and an output drive shaft. Pivotally secured to and located within the housing are a plurality of levers. A first lever is journalled to the o... | 10/20/1992 |