Patent
Battery pack and cordless power tool using the same as power source
Nobuhiro Takano,Hidekazu Harada +1 more
- 21 Nov 2002
641
TL;DR: In this article, a microcomputer was used to prevent a battery from being over-discharged and to improve a cycle life of the battery by electrically interrupting connection between the battery and a cordless power tool to compulsorily stop driving the tool when the battery voltage has become equal to or fallen below a first predetermined value.
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Abstract: To prevent a battery from being over-discharged and to thus improve a cycle life of the battery, a microcomputer electrically interrupts connection between the battery and a cordless power tool to compulsorily stop driving the tool when the battery voltage has become equal to or fallen below a first predetermined value. Also, to enable an operator to know that the battery is in a near over-discharge condition, the microcomputer performs a switching control of a load current when the battery voltage is above the first predetermined voltage but has become equal to or falls below the second predetermined voltage. As a result, the rotation of the motor of the tool goes abruptly slow down or the motor rotates in an irregular fashion, whereby the operator recognizes that the battery is in a charge-need condition.
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Citations
Patent
Surgical instrument with an anvil that is selectively movable about a discrete non-movable axis relative to a staple cartridge
Iv Frederick E. Shelton,Iii Chester O. Baxter +1 more
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TL;DR: In this paper, a surgical instrument that includes an elongate channel that is configured to operably support a surgical staple cartridge therein is presented, where an anvil is pivotally coupled to a proximal end of the channel such that the anvil axis defined by the elongate channels is pivotal.
549
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Signal and power communication system positioned on a rotatable shaft
Frederick E. Shelton,David C. Yates,Jason L. Harris +2 more
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TL;DR: A surgical instrument assembly can comprise a handle including an electric motor, a shaft assembly including a drive member, and a magnet configured to generate a magnetic field as mentioned in this paper, which is used to detect strain created within the output shaft.
545
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Secondary battery arrangements for powered surgical instruments
David C. Yates,Steven G. Hall,Emily A. Schellin,Frederick E. Shelton +3 more
- 15 Aug 2014
TL;DR: In this paper, a power system for powering a surgical instrument including an end effector and a motor configured to generate at least one motion to effectuate the end-effector, was presented.
545
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System for detecting the mis-insertion of a staple cartridge into a surgical stapler
Frederick E. Shelton,Jerome R. Morgan,Jeffrey S. Swayze,Andrew T. Beckman,Jason L. Harris,Brett E. Swensgard +5 more
- 01 Mar 2016
TL;DR: In this article, a surgical instrument system can include an end effector and a staple cartridge which is removably insertable into the end-effector, and a sled movable from an unfired position to a fired position to eject staples.
543
Patent
Tissue thickness compensator configured to redistribute compressive forces
Tamara Widenhouse,Frederick E. Shelton,Gary W. Knight,Chester O. Baxter,Kreena R. Modi,Katherine J. Schmid +5 more
- 20 Mar 2014
TL;DR: A tissue thickness compensator may generally comprise a compressible core comprising a plurality of crushable particles, and a wrap surrounding the compressable core as discussed by the authors, and the plurality of movable particles may comprise at least one medicament.
543
References
Patent
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Kazuhiko Matsuda
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TL;DR: In this article, a remaining capacity estimation system and method for an automobile battery capable of estimating and displaying an accurate remaining battery capacity by calculating an internal resistance value of the battery based on a terminal voltage in a disconnected state to electrical loads.
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Patent
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Gunther Bergk,Jochen Cimbal +1 more
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TL;DR: In this article, a method of determining and displaying the charge status of a storage battery of a battery-operated appliance, such as a razor, is presented, based on the cumulative operating time of the appliance since recharging.
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Patent
Method and apparatus for adaptive and corrective determination of battery run-time in uninterruptible power systems
Frederick A. Stich,Thomas G Hubert,Timothy Walsh +2 more
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TL;DR: In this paper, the run-time available from an uninterruptible power system is accurately determined both during supply of power from the battery to the load and during the time where power is supplied directly from an AC power system to the loads.
20
Patent
Circuit arrangement for judging the lifetime of a battery in a no-break power supply system
Ohnari Eiji
- 28 Aug 1986
TL;DR: In this article, a circuit arrangement for judging the lifetime of a battery used in a no-break power supply system includes a step-down transformer connected to an AC power source, a first switch connected between the transformer and a rectifier, a voltage detector connected to one electrode of the battery, an auto-timer connected to the voltage detector, and a second switch connected with the auto timer and interlocked to the first switch.
17
Patent
Method and arrangement for disconnecting consumers
Hartmut Loth-Krausser
- 27 Aug 1997
TL;DR: In this paper, a method and arrangement for disconnecting consumers who are connected to a voltage source, specially a direct voltage source was proposed, based on the knowledge that several consumers are often present in a voltage system, apart of which can be disconnected immediately when one or several conditions for disconnection are fulfilled, while another part of the consumers should be gradually disconnected due to technical safety reasons or psychological aspects.
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