Source: http://www.google.com/patents/US5398766?dq=6008737
Timestamp: 2016-02-09 23:36:44
Document Index: 766498997

Matched Legal Cases: ['Application No. 57', 'Application No. 57', 'Application No. 58', 'Application No. 58', 'Application No. 61', 'Application No. 61']

Patent US5398766 - Device for controlling height of blade of tracked vehicle - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA device for controlling the height of a blade of a tracked vehicle includes a blade height position detector, a blade height controller for raising and lowering the blade, and a device for setting an initial height of the blade. When the transmission of the vehicle is shifted from the reverse to the...http://www.google.com/patents/US5398766?utm_source=gb-gplus-sharePatent US5398766 - Device for controlling height of blade of tracked vehicleAdvanced Patent SearchPublication numberUS5398766 APublication typeGrantApplication numberUS 08/144,022Publication dateMar 21, 1995Filing dateNov 1, 1993Priority dateApr 24, 1990Fee statusLapsedPublication number08144022, 144022, US 5398766 A, US 5398766A, US-A-5398766, US5398766 A, US5398766AInventorsTetsuya Nakayama, Toshihiko Kohda, Tatsuro NakazatoOriginal AssigneeKabushiki Kaisha Komatsu SeisakushoExport CitationBiBTeX, EndNote, RefManPatent Citations (9), Non-Patent Citations (10), Referenced by (34), Classifications (9), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetDevice for controlling height of blade of tracked vehicle
US 5398766 AAbstract
1. A device for controlling height of a blade of a tracked vehicle, comprising:a lever for generating a first blade raising command signal used for raising or lowering the blade; initial blade height setting means for setting and storing an initial blade height; blade height detecting means for detecting a current blade height; manual operation detecting means for detecting the operation of the lever and for outputting an operation detection signal during a period when the lever is being operated; transmission position detecting means for detecting that speed stage of a transmission is shifted from a rearward movement stage to a forward movement stage; target blade height selecting means for selecting and outputting a blade height set by the initial blade height setting means as a target blade height when the transmission position detecting means detects that speed stage of the transmission is shifted from a rearward movement stage to a forward movement stage, and for selecting and outputting a blade height detected by the blade height detecting means as a target blade height when the manual operation detecting means outputs the operation detection signal; memory means for temporarily storing an output of the target blade height selecting means; blade raising command signal generating means for generating a second blade raising command signal used for making the blade height to the target blade height stored in the memory means; switching means for outputting the first blade raising command signal when the detection signal is outputted from the manual operation detecting means, and for outputting the second blade raising command signal when the detection signal is not outputted from the manual operation detecting means; and drive controlling means for controlling a blade raising actuator in accordance with the blade raising command signal outputting from the switching means. 2. A device for controlling height of a blade of a tracked vehicle as claimed in claim 1, further comprising means for indicating the data temporarily stored in the memory means.
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with component feedbackUS8042290Jul 26, 2010Oct 25, 2011Vermeer Manufacturing CompanyTrencher with auto-plunge and boom depth controlUS8347529Apr 14, 2009Jan 8, 2013Vermeer Manufacturing CompanyMachine attachment based speed control systemUS8406963Aug 18, 2009Mar 26, 2013Caterpillar Inc.Implement control system for a machineUS8700273Feb 21, 2013Apr 15, 2014Caterpillar Inc.Implement control system for a machineUS8762010Mar 15, 2013Jun 24, 2014Caterpillar Inc.Implement control system for a machineUS8819966Dec 10, 2012Sep 2, 2014Vermeer Manufacturing CompanyMachine attachment based speed control systemUS9199616 *Dec 12, 2011Dec 1, 2015Caterpillar Inc.System and method for determining a ground speed of a machineUS9222236 *May 28, 2013Dec 29, 2015Komatsu Ltd.Bulldozer and blade control methodUS20070022637 *Jul 26, 2006Feb 1, 2007Honda Motor Co., Ltd.Self-propelled snow removerUS20070028596 *Oct 5, 2006Feb 8, 2007Hitachi, Ltd.Diagnostic equipment for an exhaust gas cleaning apparatusUS20070235201 *Mar 31, 2006Oct 11, 2007Imed GharsalliMachine with automated linkage positioning systemUS20090000154 *Jun 29, 2007Jan 1, 2009Ty HartwickTrencher with Auto-Plunge and Boom Depth ControlUS20090000156 *Jun 29, 2007Jan 1, 2009Ty HartwickTrack Trencher Propulsion System with Load ControlUS20090000157 *Jun 29, 2007Jan 1, 2009Ty HartwickTrack Trencher Propulsion System with Component FeedbackUS20100257757 *Oct 14, 2010Vermeer Manufacturing CompanyMachine attachment based speed control systemUS20110035969 *Feb 17, 2011Vermeer Manufacturing CompanyTrencher with Auto-Plunge and Boom Depth ControlUS20110046857 *Aug 18, 2009Feb 24, 2011Caterpillar Inc.Implement Control System For A MachineUS20120158209 *Dec 12, 2011Jun 21, 2012Caterpillar Inc.System and method for determining a ground speed of a machineUS20140257646 *May 28, 2013Sep 11, 2014Komatsu Ltd.Bulldozer and blade control method* Cited by examinerClassifications U.S. Classification172/4.5, 701/50, 172/2International ClassificationE02F3/85, E02F3/84Cooperative ClassificationE02F3/844, E02F3/845European ClassificationE02F3/84B2, E02F3/84BLegal EventsDateCodeEventDescriptionSep 14, 1998FPAYFee paymentYear of fee payment: 4Oct 9, 2002REMIMaintenance fee reminder mailedMar 21, 2003LAPSLapse for failure to pay maintenance feesMay 20, 2003FPExpired due to failure to pay maintenance feeEffective date: 20030321RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services