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Patent No. 5277148

Wearable Pet Enclosure

An enclosure for small animals which is wearable on the front or back of an animate being.

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Class 60/466 - Of braking or holding valve in motor discharge line


Subclass of Class 60 - Power plants
Definition: Apparatus having a means sensing the pressure or rate of
No. of patents: 50
Last issue date: 02/26/2008


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NumberTitleIssue Date
7334403Brake valve for a hydraulic transmission
The invention relates to control of a hydrostatic gearbox, comprising a hydraulic pump (2), provided for pumping in a first pump-side main line (5a) or a second pump-side main line (6a). The hydrostatic gearbox further comprises a ...
02/26/2008
7328646Hydraulic valve arrangement
The invention concerns a hydraulic valve arrangement (1) with a control valve module (2) comprising a supply connection arrangement with a high-pressure connection (P) and a low-pressure connection (T) and a working connection arrangement with two work...
02/12/2008
7249640Highly mobile robots that run and jump
The present invention relates to novel, highly mobile small robots called “Mini-WHEGS™” that can run and jump. They are derived from our larger WHEGS™(“wheel-like lecis”) series of robots, which benefit from abstracted cockroach locomotion principles. Pa...
07/31/2007
7231763Hydraulic apparatus
A hydraulic system 10 of the present invention has a hydraulic pump driven by a driving source 14, a hydraulic pump motor 52 driven by an operating oil discharged from the hydraulic pump and flowing in an oil path 50, an inertial body ...
06/19/2007
7121297Valve arrangement in a hydraulic circuit, use of the same and arrangement for controlling a hydraulic vehicle drive
Arranged in a hydraulic circuit is a valve with an L-shaped duct arrangement, which is formed by a transverse duct 2 and a longitudinal duct 3. Formed in extension of the longitudinal duct 3 is a holding and guiding bore 4, in which a thr...
10/17/2006
7121970Control system for a hydro-mechanical transmission
A variable relief valve is inserted in a hydraulic piping for connecting a first pump/motor to a second pump/motor. The variable relief valve is controlled such that when shifting the transmission from forward to reverse or vice versa, a relief set pressure of the v...
10/17/2006
7055318Drive mechanism
A drive mechanism is disclosed which includes a hydraulic pump whereby at least two hydraulic motors may be supplied with pressure medium. The drive mechanism in accordance with the invention has on the meter-in side or on the meter-out side of each hydraulic motor ...
06/06/2006
7032332Method of controlling a backhoe
An electronic control for damping oscillation of a swinging backhoe assembly includes a crossover valve that connects the hydraulic lines that supply hydraulic fluid to the boom swing cylinders to each other whenever an electronic controller senses incipient oscilla...
04/25/2006
6978609Electrohydraulic servo door drive for operating a door, a window, etc.
The invention pertains to an electrohydraulic servo door drive for operating a door, a window, or the like, with a hold-open function, where a valve is installed in the hydraulic circuit to implement the hold-open function. To create an electrohydraulic servo door d...
12/27/2005
6871494Hydraulic type brake apparatus
The present invention relates to a hydraulic type brake system which includes a unit for adjusting a back pressure in a turn driving hydraulic circuit mounted in a construction heavy equipment such as an excavator, etc., and in particular to a hydraulic type brake a...
03/29/2005
6865886Hydraulic control system
A hydraulic control system (1) has a hydraulic motor (10), which is connected with a control valve (2) via two working lines (8, 9), the control valve (2) being connected with a low-pressure connection (T) and, via a compensation v...
03/15/2005
6499296Hydraulic circuit
A hydraulic circuit for controlling a consumer of a mobile work tool, wherein the pressure in supply and outlet lines towards the consumer is limited by means of pilot-controlled pressure control valves. The pilot control stage of these pressure control v...
12/31/2002
6435310Hydraulic elevator system
A hydraulic elevator system of an inverter control method directly controlling a flow amount of a pressed oil discharged from a hydraulic pump by a speed control of a motor driving the hydraulic pump, which can improve energy efficiency and stability. The...
08/20/2002
6338247System for controlling a hydraulic vehicle drive
A hydraulic vehicle drive, having a closed hydraulic circuit consists of a variable displacement pump and one or several hydraulic motors. The variable displacement pump is driven by a diesel engine. During the braking or pushing operation of the vehicle,...
01/15/2002
6267163Method and apparatus for operating a hydraulic drive system of a feller-buncher
A feller-buncher includes a first axle having a number of first wheels attached thereto and a second axle having a number of second wheels attached thereto. The feller-buncher also includes a first hydraulic motor operable to rotate the first axle and a s...
07/31/2001
6256986Hydrostatic drive system
A hydrostatic drive system with a pump and at least one consuming device that is connected to the pump can be actuated by a control valve. The control valve can be actuated as a function of an actuator that specifies a desired speed of movement and a dire...
07/10/2001
6035909Hydraulic drive for a feller-buncher
An apparatus for felling and bunching trees is disclosed. The apparatus includes a front frame and a front axle supported by the front frame. The apparatus further includes a number of front wheels mounted on the front axle and a work tool supported by th...
03/14/2000
5860351Hydraulic steering arrangement
A hydraulic steering arrangement with a steering device (2) and an oil tank (3) which are connected with each other via a supply line (5) and a return line (6), wherein a hydraulic pump (1) is integrated into the supply line (5), has an oil reservoir (7) ...
01/19/1999
5636516Swing hydraulic circuit in construction machine
The present invention provides a swing hydraulic circuit for use in a construction machine, which is free from a shock upon the starting and stopping of the turning frame even though the reach of the working machine is small and from a delay upon the star...
06/10/1997
5433077Actuator control device with meter-out valve
A control valve feeds pressurized fluid for moving an actuator in first and second directions. A meter-out valve controls return flow of pressurized fluid from the actuator during actuation in the second direction. The meter-out valve is controlled by a p...
07/18/1995
5427195Hydraulic drive and steering systems for a vehicle
Front and rear wheeled units of vehicle are connected together for articulated steering. Wheels on at least one unit are mounted for swivelling relative to the respective unit to provide kingpin steering in combination with articulation steering. A first ...
06/27/1995
5400694Hydraulic cylinder with internal safety valve
An internal safety valve for preventing the discharge chute from rapidly falling due a sudden loss of hydraulic fluid pressure. A safety valve assembly for use in a hydraulic cylinder consisting of a safety valve located in the barrel of a hydraulic cylin...
03/28/1995
5361584Hydrostatic drive system
A hydrostatic drive system including a pump and a hydraulic motor in an open circuit which includes a feed line and a control valve in the feed line on the inflow side of the hydraulic motor to control the quantity of hydraulic pressure medium supplied to...
11/08/1994
5335495Brake valve
Described herein is a brake valve which is arranged to prevent low pressure relief actions by relief valves (59A) and (59B) at the time of starting an actuator, for improving the response characteristics and the safety of operation. This brake valve has r...
08/09/1994
5272877Method and apparatus for controlling swing stop of upper swing body in construction machine
Herein described is a method and apparatus for controlling braking and stopping of the slewing of an upper slewing body which is slewingably provided on a construction and hoists a load, represented by a rotary crane, wherein the braking torque for brakin...
12/28/1993
5197284Hydraulic motor deceleration system
A hydraulic control system includes a pump, a hydraulic motor and a motor hydraulic circuit interconnecting the pump and the motor. The circuit includes a first hydraulic fluid line extending between the pump and an inlet of the motor and a first control ...
03/30/1993
5191826Hydraulic control device
In the case of a hydraulic control device for an oscillating load moving system comprising a double-acting hydroconsumer (V), which is adapted to be selectively connected to a pressure source (P) or to a reservoir (T) via two separate main lines (9, 10) a...
03/09/1993
5167291Hydrostatic drive system for vehicles
A hydrostatic drive system for vehicles including a hydromotor with a control unit forming together a drive unit which in the assembled state can be inserted in the seat of the centering device of the drive system, the configuration and arrangement of the...
12/01/1992
5159813Slewing control device for crane
A slewing control device for a hydraulic slewing crane adapted to supply a discharge oil from a hydraulic pump through a slewing control valve to a slewing motor and control a rotational direction and a rotational speed of the slewing motor. The slewing c...
11/03/1992
5111658Method of braking a vehicle
A method a braking a vehicle which has a drive motor, a hydrostatic drive unit including adjustable hydraulic machines having adjusting devices, and an electronic subassembly controlling the adjusting devices of the hydraulic machines. Continuous adjustme...
05/12/1992
5101630Braking valve arrangement for a hydrostatic drive
The invention relates to a braking valve arrangement for a hydrostatic drive operated in open circuit, in particular for vehicle drives, wherein a hydraulic pressure medium is supplied to the hydraulic motor from the hydraulic pump via a reversing directi...
04/07/1992
5065577Hydromechanical displacement control for a power drive unit
The problem of energy wastage in power drive units having fixed displacement hydraulic motors is avoided in a system having a variable displacement hydraulic motor (10) without the expense normally associated with such variable displacement systems by a c...
11/19/1991
5063742Method of controlling swing motion of a revolving superstructure and hydraulic control system for carrying out same
A method of controlling the slewing of a revolving superstructure of a hydraulic backhoe includes setting a swing mode selector valve in a driving position to supply fluid discharged from a pump through a supply-and-discharge line to a hydraulic motor to ...
11/12/1991
5058383Hydraulic motor control circuit
A hydraulic motor control circuit for use in a device for driving construction equipment, such as shovel loader, which comprises a hydraulic driving motor, a pump for feeding compressed oil to the hydraulic motor and a tank for receiving the compressed oi...
10/22/1991
5048644Method for improving the performance of a motor controlled hydraulic elevator
The invention concerns a method and apparatus for improving the performance of a motor-controlled hydraulic elevator, in which oil is pumped using an hydraulic pump controlled by an electric motor from a container via a main supply duct into a lifting cyl...
09/17/1991
5048295Hydrostatic transmission
In a hydrostatic transmission comprising a pump and a hydraulic motor arranged in a main line having low pressure and high pressure sections, wherein an oil drain line of the hydraulic motor is connected to the low pressure section of the main line, the h...
09/17/1991
5025626Cushioned swing circuit
Cushioned swing circuits sometimes have a restricted passage between the motor conduits to allow the implement controlled by the swing circuit to coast to a stop. However, opening and closing of the restricted passage was manually controlled, thereby requ...
06/25/1991
4941371Hydraulic continuously variable speed transmission with direct clutch valve
A hydraulic continuously variable speed transmission with a direct clutch valve comprises a hydraulic pump, a hydraulic motor, a hydraulic closed circuit for hydraulically connecting the both, a direct clutch valve placed in the closed circuit, a speed re...
07/17/1990
4930311Exhaust and inlet line brake valves for hydrostatic motor
The invention relates to a safety arrangement for a controlled drive which is connected to a conduit with impressed pressure. When the safety arrangement responds the machine is separated via shutoff valves from the inlet and outlet and a via a switchover...
06/05/1990
4916897Exhaust gas purifying apparatus built-in to a muffler for a diesel engine
An exhaust gas purifying apparatus comprising a first and a second casings having expansion chambers, respectively, a third casing arranged between the first and second casings to form a passage therebetween, an inlet pipe introducing the exhaust gas into...
04/17/1990
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