Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7392125 | Working unit control apparatus of excavating and loading machine The invention provides a working unit control apparatus of an excavating and loading machine which can always judge a start of an excavation control at a proper timing. The working unit control apparatus has excavating state detecting means (43, 44) detecting... | 06/24/2008 |
| 7379806 | Method of controlling travel of construction heavy equipment with electronic joysticks Disclosed is a method for controlling travel of construction heavy equipment with electronic joysticks. The method includes the steps of; inputting a joystick travel function selection signal, first manipulation signals of the joysticks and second manipulation signa... | 05/27/2008 |
| 7293376 | Grading control system A grading control system for a work machine having a work implement for grading along a grade defined by a laser plane generator is disclosed. The system includes tilt and lift actuators associated with the work implement and configured to selectively tilt, raise an... | 11/13/2007 |
| 7284346 | Systems and methods for controlling the removal of soil from an earth moving scraper Hydraulic systems for controlling movement of an apron and a bucket of earth moving apparatuses are disclosed. The hydraulic system includes a hydraulic fluid supply, a hydraulic cylinder for moving the apron, a hydraulic cylinder for moving the bucket and a valve f... | 10/23/2007 |
| 7222444 | Coordinated linkage system for a work vehicle A work vehicle with a tool pivotally attached to a linkage, an actuator for controllably moving the tool about its pivot, and a tilt angle sensor for sensing the absolute angle of the work tool relative to the earth. A controller is adapted to perform an auto-hold f... | 05/29/2007 |
| 7185449 | System for controlling the hydraulic actuated components of a truck A system for controlling the hydraulically actuated components, including snow-ice control components carried by a truck. The system employs a hermetically secure composite housing mounted externally of the truck cab on the truck frame which retains a unique hydraul... | 03/06/2007 |
| 7142967 | Features of main control computer for a power machine The present invention is directed to a computer based control system for controlling hydraulic and electromechanical actuators on a power machine, such as a skid steer loader. The computer based control system is configured to implement a number of features to enhan... | 11/28/2006 |
| 7121355 | Bulldozer autograding system A dozer blade control system controls the position of a bulldozer blade, maintaining the blade at a constant position as the dozer travels through a worksite. The control system monitors the angle of the dozer blade with respect to the earth and when it senses that ... | 10/17/2006 |
| 7113105 | Work machine display system A display system and method for a work machine is provided. A terrain map indicative of a current surface configuration for a geographic location is displayed. The display of the terrain map includes a plurality of elevation segments. Each of the plurality of elevat... | 09/26/2006 |
| 7093383 | Automatic hydraulic load leveling system for a work vehicle A machine has a boom, that is pivotally raised and lowered by a first cylinder, and has a load carrier that is pivoted at the end of the boom by a second cylinder. As a machine operator commands movement of the boom, the position of the load carrier is automatically... | 08/22/2006 |
| 7089721 | Modular vehicle system having engine unit and mower unit for communication therewith A modular vehicle system comprises an engine unit and an engine management controller associated with the engine unit. A throttle actuator is associated with the engine management controller to control a throttle setting of an engine unit. A mower unit is associated... | 08/15/2006 |
| 7079931 | Positioning system for an excavating work machine A system and method for determining a position of a work tool of a work machine is provided. A desired surface configuration for a geographic location is identified. A mode of operation for the work machine is selected from one of a first mode and a second mode depe... | 07/18/2006 |
| 7076896 | Control for an operating arm of an earthmoving vehicle An earthmoving vehicle has an operating arm that is raised and lowered by a hydraulic system. The hydraulic system includes a drain line and at least one actuator connected to the operating arm. The actuator defines a variable-volume chamber connectable to the drain... | 07/18/2006 |
| 7069673 | Hybrid construction equipment power control apparatus Maximum charging power of a battery (63) is set by a battery-charging power setting unit (75), while maximum discharging power of the battery (63) is set by a battery-discharging power setting unit (76). Lower and upper limit of generator... | 07/04/2006 |
| 7047687 | Fishing float for positioning, detecting fish catch and lighting An inductive device for fishing. The device includes an inductive circuit board, an inductive coil, an inductive shaft and a spring. The device includes of a lighting circuit board, a plurality of LEDs and a pedestal. In the process of sea fishing, since the float b... | 05/23/2006 |
| 7040044 | Method of modulating a boom assembly to perform in a linear manner A method of modulating a boom assembly to perform in a linear manner. The boom assembly includes a boom and a stick. The method comprising the steps of sending at least one lever signal to a control device indicative of operator desired direction and desired velocit... | 05/09/2006 |
| 6980895 | Electronic control system for agricultural vehicle An electronic control system for use in an agricultural vehicle having a hitch for towing an implement. The control system controls any one or more of a plurality of sub-systems relating to the vehicle operation. The electronic control system includes a memory, a re... | 12/27/2005 |
| 6971195 | Hydraulic circuit of excavating and slewing working vehicle A hydraulic circuit of a excavating-and-slewing working vehicle, comprising: actuators for a boom, a bucket, slewing and an arm; directional control valves for the respective actuators; a pair of first and second hydraulic pumps for supplying pressure oil to the act... | 12/06/2005 |
| 6970801 | Control system or process for the automatic control of a moveable bucket wheel device A control system, or process for the automatic control of a moveable bucket wheel device for the reducing of a stockpile and/or for the piling up of bulk goods, whereby the bucket wheel device has a least one bucket wheel for the takeup of bulk goods, at least one m... | 11/29/2005 |
| 6968241 | Device and method for controlling the position for working devices of mobile machines The invention relates to a device for controlling the position for work devices (41) of mobile machines (40). The inventive device comprises a measuring device (1,2) for measuring an angle (α) which is formed between a level (42) that is... | 11/22/2005 |
| 6968264 | Method and system for controlling a mechanical arm A system and method for controlling a mechanical arm comprises planning a desired path of a mechanical arm. An actual path segment of the mechanical arm is measured. An error is determined between the measured actual path segment and the planned desired path. A corr... | 11/22/2005 |
| 6951067 | Method and apparatus for controlling positioning of an implement of a work machine An apparatus for controllably positioning a work implement of an earth moving machine is disclosed. The work implement includes a boom and an attachment being attached thereto where the boom is actuated by a hydraulic lift cylinder and the attachment is actuated by ... | 10/04/2005 |
| 6931772 | Hydraulic shovel work amount detection apparatus, work amount detection method, work amount detection result display apparatus During transfer of a material by a hydraulic excavator, load computing means periodically computes the weight of the material in a bucket of the excavator. Average value computing means computes an average value of weights of the material including a currently compu... | 08/23/2005 |
| 6934616 | System for determining an implement arm position A control system for determining a position of an implement arm having a work implement is disclosed. The implement arm includes mating components connected by at least one joint. The control system includes at least one position sensor operably associated with the ... | 08/23/2005 |
| 6915600 | Hydraulic circuit of excavating and slewing working vehicle A hydraulic circuit of an excavating and slewing working vehicle of two pump system, wherein a directional control valve for slewing and a directional control valve for arm are tandem-connected to the upstream side and downstream side of the delivery oil passage of ... | 07/12/2005 |
| 6898877 | Heavy equipment safety device A backhoe (100) has a hydraulic cylinder (316, 317) with a piston (318, 319) that rotates a rotatable boom (108). A lockable slider block (322) slides on the piston. Movement of the lockable slider block in one direction is caused ... | 05/31/2005 |
| 6895699 | Heavy equipment safety device A backhoe (100) has a hydraulic cylinder (316, 317) with a piston (318, 319) that rotates a rotatable boom (108). A lockable slider block (322) slides on the piston. Movement of the lockable slider block in one direction is caused ... | 05/24/2005 |
| 6851207 | Construction machinery First and second hydraulic pumps each adapted to operate plural actuators are activated by separate electric motors respectively. In accordance with signals provided from a controller on the basis of operations of levers, the number of revolutions of the electric mo... | 02/08/2005 |
| 6836982 | Tactile feedback system for a remotely controlled work machine A control system for a work machine having a hydraulic actuator is provided. An input device generates a movement signal to control the movement of the hydraulic actuator. A sensor senses a parameter indicative of a magnitude of a force exerted by the hydraulic actu... | 01/04/2005 |
| 6836981 | Hydraulic control circuit for boom cylinder in work machine A hydraulic control circuit for a boom cylinder in a work machine, which, when controlling supply and discharge of pressurized oil with respect to a boom cylinder, improves fuel efficiency, work efficiency in combined operations, and improves work efficiency and ope... | 01/04/2005 |
| RE38665 | Wireless snow plow control system A snow plowing system utilizing a wireless radio remote control to control a snow plow mounted to the front of a vehicle. The plowing system comprises a snow plow blade, mounting mechanism connected to the vehicle for mounting the snow plow blade to the vehicle, the... | 12/07/2004 |
| 6820356 | Hybrid powered construction equipment Hybrid powered construction equipment is capable of making effective use of the output energy of an engine; increasing operating speed while keeping noise level low, and assuring operation power more than the performance of the engine. To this end, the hybrid powere... | 11/23/2004 |
| 6820355 | Hydraulic control circuit of boom cylinder in work machine A hydraulic control circuit of a boom cylinder for a work machine, which, when controlling the supply and discharge of pressurized oil with respect to a boom cylinder, improves fuel efficiency, work efficiency in combined operations, and work efficiency and operatio... | 11/23/2004 |
| 6819993 | System for estimating a linkage position A system and method for estimating the position of a mechanical linkage is disclosed. An estimated position of a mechanical linkage is set to an initial position. The movement of the mechanical linkage is controlled based on a signal from an input device. The estima... | 11/16/2004 |
| 6739078 | Machine control over the web A system to control a piece of construction equipment or other piece of heavy equipment at a remote location via a data network in which a user provides movement instructions via a graphical user interface at a user PC to a programmable controller interfaced to the ... | 05/25/2004 |
| 6732458 | Automatically operated shovel and stone crushing system comprising same An automatically operated shovel, which includes a power shovel and an automatic operation controller 50 for making the power shovel reproduce a series of taught operations ranging from digging to dumping, is characterized in that the automatic operation cont... | 05/11/2004 |
| 6718245 | Electronic control system for construction machinery A system having a monitoring function in addition to a control function is able to suppress an increase in the amount of data communication and the communication frequency via a common communication line, and is flexibly adaptable for the addition of a new function ... | 04/06/2004 |
| 6701239 | Method and apparatus for controlling the updating of a machine database A method and apparatus for updating a machine database. The database includes data representing the desired and actual terrain of a work site. Additional data represents portions of the work site which have been further worked. An indicator detects the ma... | 03/02/2004 |
| 6691435 | Plow system including a hydraulic fluid diverter A snow plow system for use with a skid steer loader includes a V-plow blade that is repositionable by a hydraulic actuator operated by pressurized hydraulic fluid supplied to the actuator from the auxiliary hydraulic output of the skid steer loader. A nor... | 02/17/2004 |
| 6691010 | Method for developing an algorithm to efficiently control an autonomous excavating linkage The present invention is a control system for controlling movement of a work implement from a dig location to a dump location. The work implement has at least four degrees of freedom defined by a swing joint angle θswing, a boom joint angle θ... | 02/10/2004 |