US2323519A - Vacuum operated window regulator - Google Patents

Vacuum operated window regulator Download PDF

Info

Publication number
US2323519A
US2323519A US375710A US37571041A US2323519A US 2323519 A US2323519 A US 2323519A US 375710 A US375710 A US 375710A US 37571041 A US37571041 A US 37571041A US 2323519 A US2323519 A US 2323519A
Authority
US
United States
Prior art keywords
vacuum
motor
engine
operated
window
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US375710A
Inventor
Roy H Dean
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ternstedt Manufacturing Co
Original Assignee
Ternstedt Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ternstedt Manufacturing Co filed Critical Ternstedt Manufacturing Co
Priority to US375710A priority Critical patent/US2323519A/en
Application granted granted Critical
Publication of US2323519A publication Critical patent/US2323519A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/57—Power-operated mechanisms for wings using fluid-pressure actuators for vertically-sliding wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S60/00—Power plants
    • Y10S60/911—Fluid motor system incorporating electrical system

Definitions

  • the figure is largely a diagrammat c view showing the apparatus applied to a front door equipped with the Fisher No Draft venti ating system.
  • I designates the door which is shown fragmentarily.
  • 2 is the front swinging panel and window opening.
  • 3 is the division pillar in which is guided the vertically sliding glass 4 which is raised and lowered by a lifting arm 5 fulcrumed at 6.
  • Almost any form of window regulator can be used.
  • a common form of lift ing arm which has a sliding connection in the channel I at the bottom of the window.
  • the power arm of the bell crank is pivoted to the end of the piston rod 8 which has a connection at its other end to the piston 9 which is guided in cylindcr ID.
  • This cylinder is pivoted at H to the front door pillar so that it may accommodate itself to the arc of swing of the power arm of the regulator.
  • a flexible tube l2 connects with the right hand end of the cylinder and a flexible tube l3 with the left hand end of the cylinder to put these two ends of the cylinder alternately in communication with the source of vacuum or the atmosphere.
  • This is controlled by a valve M in valve casing I5.
  • Tube I2 is in communication with the atmosphere which enters through port I6 in the valve casing and tube I3 is also in communication with the atmosphere through the passageways I! through the center of the valve which lead from below the valve to above.
  • the valve stem I8 is pulled up, th piston valve closes the communication of passageways H with tube 13 and the vacuum tube I9 is placed in communication with tube l3 by means of the annular groove 20. It is also placed in communication with tube 21 which leads to the diaphragm motor 22.
  • the application of the vacuum to motor 22 causes the two plates 23 of a transom rod type of clutch to release the piston rod 8.
  • the vacuum is applied to the right hand side of the piston 9 through tube l3 and the atmosphere to the left hand side. This will cause the piston 9 to travel from the left to the right hand end of the cylinder i0, thereby lifting window 4.
  • valve stem i8 If the valve stem i8 is pushed down from the neutral position shown in the drawing, then first the tube 2
  • the tube i3 now is in communication with the atmosphere by being open to the space in the top of the valve chamber which is in communication with the atmosphere through the passageway II to the chamber in the bottom of the valve casing.
  • the vacuum is applied to the left of the piston and the atmosphere to the right. If the piston is in a position towards the right hand end of the cylinder, it will travel to the left of the cylinder and pull the window down.
  • the conduit l9 leads to engine manifold 25.
  • Another conduit 26 leads to the diaphragm motor 21.
  • the diaphragm 28 is pushed to the right by spring 29 closing switch 30 in the motor control circuit 3
  • valve stem i8 is pushed either down or pulled up
  • the vacuum operated switch 30 is adjustable.
  • a vacuum operated window regulator operated from internal combustion engines
  • a vacuum operated window regulator operated from internal combustion engines
  • the motor an electric circuit and vacuum-controlled switch for so controlling the electric motor and a valve for controlling the application of the vacuum, produced in either way, to the motor to raise or lower the window.
  • a vacuum operated window regulator operated by engine suction.
  • a vacuum operated window re ator operated by engine suction the combination of means for raising and lowering the window, a control therefor which controls both the engine vacuum and the hereinafter-mentioned independent vacuum producer, a vacuum operated motor having a connection with the engine manifold for causing atmospheric pressure to operate the motor, means connecting with said motor for producing a vacuum wholly independent of the engine suction when the vacuum in the manifold becomes ineffective to operate: the motor and only when the control is actuated to operate the window regulator, and means automatically setting said last mentioned means in operation when the depression in the manifold falls below a given point.
  • a vacuum operated window regulator operated by engine suction.
  • a lifting mechanism for raising and lowering the window by means of said lifting mechanism, conduits between the vacuum motor and the source of vacuum from the engine, a valve for controlling said conduits to apply the vacuum to either one side or the other of the motor and a pump and electric motor for making connection with the vacuum motor when the vacuum in the engine fails and only when the control is actuated to operate the window regulator.
  • a' lifting mechanism for raising and lowering the window by means of said lifting mechanism, conduits between the motor and the source of vacuum from the engine, a valve for controlling said conduits to apply the vacuum to either one side or the other of the motor, a pimp and electric motor for making connection with the vacuum motor when the vacuum in the ergine'

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)

Description

July 6, 1943. I R E 2,323,519
VACUUM OPERATED WINDOW REGULATOR Filed Jan. 24, 1941 Q INVENTOR. J g /?0 r h. 0mm
BY ag gwxw Patented July 6, 1943 VACUUM OPERATED WINDOW REGULATOR Roy H. Dean, Detroit, Mich, assignor to Ternstedt Manufacturing Company, Detroit, Mich., a corporation of Michigan Application January 24, 1941, Serial No. 375,710
7 Claims. (Cl. 268-125) This invention relates to vacuum operated window regulators. Vacuum powered window regulators are old in the art. On of the drawbacks of this system of raising and lowering the windows is that, when the engine stops, the vacuum fails and the windows cannot be operated.
It has already been proposed to provide vacuum storage tanks to furnish a vacuum even when the engine has ceased to operate butthese are effective only for a few hours as there are always leaks which tend to equalize the pressures and then the storage tank becomes ineffective. Then, the only way that windows can be raised and lowered is to start the engine or provide an alternati e operating handle and suitable gear connections. The latter is undesirable as it involves mechanical complications and expense in providing the necessary mechanism and, furthermore, a handle has to be provided on each door. Body designers and engineers have desired to eliminate some of the control handles on an automobile door as they are quite a problem in getting in the way of the steering mechanism and also the knees of an occupant of the seat. One advantage of the power operated window regulator is that the window regulator handle can, ordinarily, be eliminated.
It is the object of the present invention to provide vacuum power for automatically operating the window regulators and to have this power always available even when the motor has stopped, thus making the windows operable with out starting the engine and without providing optional hand operators.
In the drawing:
The figure is largely a diagrammat c view showing the apparatus applied to a front door equipped with the Fisher No Draft venti ating system.
I designates the door which is shown fragmentarily. 2 is the front swinging panel and window opening. 3 is the division pillar in which is guided the vertically sliding glass 4 which is raised and lowered by a lifting arm 5 fulcrumed at 6. Almost any form of window regulator can be used. Here is shown a common form of lift ing arm which has a sliding connection in the channel I at the bottom of the window. The power arm of the bell crank is pivoted to the end of the piston rod 8 which has a connection at its other end to the piston 9 which is guided in cylindcr ID. This cylinder is pivoted at H to the front door pillar so that it may accommodate itself to the arc of swing of the power arm of the regulator. A flexible tube l2 connects with the right hand end of the cylinder and a flexible tube l3 with the left hand end of the cylinder to put these two ends of the cylinder alternately in communication with the source of vacuum or the atmosphere. This is controlled by a valve M in valve casing I5. This happens to be shown as a sliding valve but any suitable form of valve to accomplish this purpose may be used.
As shown in the drawing: Tube I2 is in communication with the atmosphere which enters through port I6 in the valve casing and tube I3 is also in communication with the atmosphere through the passageways I! through the center of the valve which lead from below the valve to above. When the valve stem I8 is pulled up, th piston valve closes the communication of passageways H with tube 13 and the vacuum tube I9 is placed in communication with tube l3 by means of the annular groove 20. It is also placed in communication with tube 21 which leads to the diaphragm motor 22. The application of the vacuum to motor 22 causes the two plates 23 of a transom rod type of clutch to release the piston rod 8. At the same time, the vacuum is applied to the right hand side of the piston 9 through tube l3 and the atmosphere to the left hand side. This will cause the piston 9 to travel from the left to the right hand end of the cylinder i0, thereby lifting window 4.
If the valve stem i8 is pushed down from the neutral position shown in the drawing, then first the tube 2| is brought into communication with the vacuum through passageway 24 registering with the annular groove 20 and then tube I2 is brought into communication with the vacuum by the inlet of tube l2 registering with the annular groove 20. The tube i3 now is in communication with the atmosphere by being open to the space in the top of the valve chamber which is in communication with the atmosphere through the passageway II to the chamber in the bottom of the valve casing. Hence, now, the vacuum is applied to the left of the piston and the atmosphere to the right. If the piston is in a position towards the right hand end of the cylinder, it will travel to the left of the cylinder and pull the window down.
The conduit l9 leads to engine manifold 25. Another conduit 26 leads to the diaphragm motor 21. When the vacuum in the manifold fails, the diaphragm 28 is pushed to the right by spring 29 closing switch 30 in the motor control circuit 3|. The switch is shown closed in the drawing. If
valve stem i8 is pushed either down or pulled up,
it will contact terminal 32 or 33, thus closing the circuit to ground through the winding 34 of the I solenoid, closing a motor switch 35 and startin the electric motor M which operates Vacuum pump P. Hence, when there is not suflicient vacuum in the manifold, an operation of the valve immediately starts the motor and the pump, creating a vacuum to furnish the vacuum to raise or lower the window. When the engine motor is running, the vacuum in the left hand chamber of the diaphragm motor 2'! will always keep the diaphragm 28 to the left and the switch stays open so that the motor M is cut out, even though the valve I8 is operated. A check valve 40 keeps the line to the manifold closed when pump P is working.
, The vacuum operated switch 30 is adjustable.
What I claim is:
1. In a vacuum operated window regulator operated from internal combustion engines, the combination of means for raising and lowering the window, a control therefor which controls both the engine vacuum and the hereinafter-mentioned independent vacuum producer, a vacuum operated motor having a connection with the engine manifold for causing the atmospheric pressure to operate said motor when the control is actuated and means connecting with said vacuum motor for producing a vacuum wholly independent of the engine suction when the vacuum in the manifold be'comes ineffective to operate the motor and only when the control is actuated to operate the window regulator.
2. In a vacuum operated window regulator operated from internal combustion engines, the combination of means for raising and lowering the window, a control therefor which controls both the engine vacuum and the hereinaftermentioned independent vacuum producer, a vacuum operated motor having a connection with the engine manifold for causing the atmospheric pressure to operate the motor when the, control is actuated and electrically powered means conmeans for raising and lowering the window, a vacuum operated motor having a connection with the engine manifold for causing atmospheric pressure to operate the mechanism, means including an electric motor and pump connecting with said motor for producing a vacuum wholly independent of the engine suction when the vacuum in the manifold becomes ineflective to operate. the motor, an electric circuit and vacuum-controlled switch for so controlling the electric motor and a valve for controlling the application of the vacuum, produced in either way, to the motor to raise or lower the window.
5. In a vacuum operated window regulator operated by engine suction. the combination of means for raising and lowering the window, a vacuum operated motor having a connection with the engine manifold for causing atmospheric pressure to operate the mechanism, supplementary means connecting with said motor for producing a vacuum wholly independent of the engine suction when the vacuum in the manifold becomes ineffective to operate the motor, a valve for controlling the application of the vacuum to the motor to raise or lower the window and means for automatically causing the operation of the supplementary means when the vacuum in the manifold becomes ineffective, comprising an elecnecting with said motor for producing a vacuum wholly'independent of the engine suction when the vacuum in the manifold becomes ineffective to operate the motor and only when the control is actuated to operate the window regulator.
3. In a vacuum operated window re ator operated by engine suction, the combination of means for raising and lowering the window, a control therefor which controls both the engine vacuum and the hereinafter-mentioned independent vacuum producer, a vacuum operated motor having a connection with the engine manifold for causing atmospheric pressure to operate the motor, means connecting with said motor for producing a vacuum wholly independent of the engine suction when the vacuum in the manifold becomes ineffective to operate: the motor and only when the control is actuated to operate the window regulator, and means automatically setting said last mentioned means in operation when the depression in the manifold falls below a given point.
4. In a vacuum operated window regulator operated by engine suction, the combination of tric circuit controlling the operation of said supplementary means and including two switches, one of which is closed when the vacuum from the engine fails and the other is closed when the said valve is operated.
6. In a vacuum operated window regulator operated by engine suction. the combination of a lifting mechanism, a vacuum motor for raising and lowering the window by means of said lifting mechanism, conduits between the vacuum motor and the source of vacuum from the engine, a valve for controlling said conduits to apply the vacuum to either one side or the other of the motor and a pump and electric motor for making connection with the vacuum motor when the vacuum in the engine fails and only when the control is actuated to operate the window regulator.
'7. In a vacuum operated window regulator operated by engine suction, the combination of a' lifting mechanism, a vacuum motor for raising and lowering the window by means of said lifting mechanism, conduits between the motor and the source of vacuum from the engine, a valve for controlling said conduits to apply the vacuum to either one side or the other of the motor, a pimp and electric motor for making connection with the vacuum motor when the vacuum in the ergine'
US375710A 1941-01-24 1941-01-24 Vacuum operated window regulator Expired - Lifetime US2323519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US375710A US2323519A (en) 1941-01-24 1941-01-24 Vacuum operated window regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US375710A US2323519A (en) 1941-01-24 1941-01-24 Vacuum operated window regulator

Publications (1)

Publication Number Publication Date
US2323519A true US2323519A (en) 1943-07-06

Family

ID=23481981

Family Applications (1)

Application Number Title Priority Date Filing Date
US375710A Expired - Lifetime US2323519A (en) 1941-01-24 1941-01-24 Vacuum operated window regulator

Country Status (1)

Country Link
US (1) US2323519A (en)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524714A (en) * 1944-11-18 1950-10-03 Trico Products Corp Window system
US2596566A (en) * 1949-07-01 1952-05-13 Harry L Lacy Changeable color automobile body
US2734353A (en) * 1956-02-14 Refrigerating device for automobiles
US2746251A (en) * 1951-08-01 1956-05-22 Electrol Inc Self-contained power actuator
US2844003A (en) * 1953-08-31 1958-07-22 Kelsey Hayes Co Emergency power hook-up for booster brake mechanism
US2863286A (en) * 1954-06-07 1958-12-09 Gen Motors Corp Control system for power brake system utilizing auxiliary vacuum pump
US2887849A (en) * 1957-03-22 1959-05-26 Vac U Lift Company Vacuum control lifting apparatus
US2911212A (en) * 1954-07-01 1959-11-03 Daimler Benz Ag Power-driven window-actuating mechanism for motor vehicles
US2935951A (en) * 1953-01-29 1960-05-10 Daimler Benz Ag Pump means for hydraulic servo systems
US2954671A (en) * 1958-07-14 1960-10-04 Le Tourneau Westinghouse Compa Power steering means
US2974742A (en) * 1959-04-24 1961-03-14 Robertshaw Fulton Controls Co Motor vehicle door lock system
US2977764A (en) * 1959-04-15 1961-04-04 Gen Motors Corp Actuator and control system therefor
US3030778A (en) * 1958-05-27 1962-04-24 Dole Valve Co Pneumatic relay
US3053044A (en) * 1958-11-07 1962-09-11 Ready Mixed Concrete Ltd Hydraulic transmission systems
US3080718A (en) * 1961-08-01 1963-03-12 Thompson Ramo Wooldridge Inc Hydraulic brake system
US3104529A (en) * 1961-02-13 1963-09-24 John B Goss Hydraulic motor device
US3180017A (en) * 1962-02-12 1965-04-27 Townsend Company Lock bolt gun
US3190073A (en) * 1963-03-13 1965-06-22 Havaca Inc Automatic valve and clutch arrangement
US3228193A (en) * 1963-11-05 1966-01-11 Herbert H Schmiel Fluid system with valve actuated pump motor switch
US3230714A (en) * 1963-12-26 1966-01-25 Emil J Paidar Company Power operated chair with fluid brake
US3280557A (en) * 1965-03-11 1966-10-25 Ford Motor Co Safety control circuit for power steering unit
US3433017A (en) * 1967-11-02 1969-03-18 Caterpillar Tractor Co Safety override for hydraulic cable control unit
US3443380A (en) * 1968-01-02 1969-05-13 Allis Chalmers Mfg Co Two-pump system for lift cylinder
US3469399A (en) * 1968-02-16 1969-09-30 Templeton Kenly & Co Concrete stressing apparatus and remote control unit therefor
US3677002A (en) * 1971-02-04 1972-07-18 Bendix Corp Subsidiary supply for hydraulic brake booster
US3686861A (en) * 1971-03-19 1972-08-29 Bendix Corp Electrical control for vacuum pump
US3688498A (en) * 1970-09-21 1972-09-05 Bendix Corp Auxiliary fluid supply for brake booster
US3696613A (en) * 1968-09-27 1972-10-10 Ford Motor Co Hydraulic steering system having auxiliary power source
US3727404A (en) * 1971-12-08 1973-04-17 Gen Motors Corp High pressure steering system
US3911679A (en) * 1974-12-26 1975-10-14 Allis Chalmers Closed center hydraulic system with pump and accumulator output for high speed lift
US3916624A (en) * 1973-11-14 1975-11-04 Massey Ferguson Services Nv Hydraulic controls
EP0017357A1 (en) * 1979-03-30 1980-10-15 Thermoforce Limited Temperature responsive control device
US4270371A (en) * 1978-02-06 1981-06-02 Vdo Adolf Schindling Ag Device for unlocking and locking of doors, particularly of motor vehicle doors
US4358928A (en) * 1980-08-28 1982-11-16 General Motors Corporation Altitude compensation vacuum pump control
US4412416A (en) * 1980-10-20 1983-11-01 General Motors Corporation Altitude compensated vacuum supply system and control
US6230608B1 (en) * 1997-07-25 2001-05-15 Mtd Products Inc Vacuum actuated control mechanism
US20040053742A1 (en) * 2002-07-11 2004-03-18 Axel Schaedler Vacuum actuated direction and speed control mechanism

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734353A (en) * 1956-02-14 Refrigerating device for automobiles
US2524714A (en) * 1944-11-18 1950-10-03 Trico Products Corp Window system
US2596566A (en) * 1949-07-01 1952-05-13 Harry L Lacy Changeable color automobile body
US2746251A (en) * 1951-08-01 1956-05-22 Electrol Inc Self-contained power actuator
US2935951A (en) * 1953-01-29 1960-05-10 Daimler Benz Ag Pump means for hydraulic servo systems
US2844003A (en) * 1953-08-31 1958-07-22 Kelsey Hayes Co Emergency power hook-up for booster brake mechanism
US2863286A (en) * 1954-06-07 1958-12-09 Gen Motors Corp Control system for power brake system utilizing auxiliary vacuum pump
US2911212A (en) * 1954-07-01 1959-11-03 Daimler Benz Ag Power-driven window-actuating mechanism for motor vehicles
US2887849A (en) * 1957-03-22 1959-05-26 Vac U Lift Company Vacuum control lifting apparatus
US3030778A (en) * 1958-05-27 1962-04-24 Dole Valve Co Pneumatic relay
US2954671A (en) * 1958-07-14 1960-10-04 Le Tourneau Westinghouse Compa Power steering means
US3053044A (en) * 1958-11-07 1962-09-11 Ready Mixed Concrete Ltd Hydraulic transmission systems
US2977764A (en) * 1959-04-15 1961-04-04 Gen Motors Corp Actuator and control system therefor
US2974742A (en) * 1959-04-24 1961-03-14 Robertshaw Fulton Controls Co Motor vehicle door lock system
US3104529A (en) * 1961-02-13 1963-09-24 John B Goss Hydraulic motor device
US3080718A (en) * 1961-08-01 1963-03-12 Thompson Ramo Wooldridge Inc Hydraulic brake system
US3180017A (en) * 1962-02-12 1965-04-27 Townsend Company Lock bolt gun
US3190073A (en) * 1963-03-13 1965-06-22 Havaca Inc Automatic valve and clutch arrangement
US3228193A (en) * 1963-11-05 1966-01-11 Herbert H Schmiel Fluid system with valve actuated pump motor switch
US3230714A (en) * 1963-12-26 1966-01-25 Emil J Paidar Company Power operated chair with fluid brake
US3280557A (en) * 1965-03-11 1966-10-25 Ford Motor Co Safety control circuit for power steering unit
US3433017A (en) * 1967-11-02 1969-03-18 Caterpillar Tractor Co Safety override for hydraulic cable control unit
US3443380A (en) * 1968-01-02 1969-05-13 Allis Chalmers Mfg Co Two-pump system for lift cylinder
US3469399A (en) * 1968-02-16 1969-09-30 Templeton Kenly & Co Concrete stressing apparatus and remote control unit therefor
US3696613A (en) * 1968-09-27 1972-10-10 Ford Motor Co Hydraulic steering system having auxiliary power source
US3688498A (en) * 1970-09-21 1972-09-05 Bendix Corp Auxiliary fluid supply for brake booster
US3677002A (en) * 1971-02-04 1972-07-18 Bendix Corp Subsidiary supply for hydraulic brake booster
US3686861A (en) * 1971-03-19 1972-08-29 Bendix Corp Electrical control for vacuum pump
US3727404A (en) * 1971-12-08 1973-04-17 Gen Motors Corp High pressure steering system
US3916624A (en) * 1973-11-14 1975-11-04 Massey Ferguson Services Nv Hydraulic controls
US3911679A (en) * 1974-12-26 1975-10-14 Allis Chalmers Closed center hydraulic system with pump and accumulator output for high speed lift
US4270371A (en) * 1978-02-06 1981-06-02 Vdo Adolf Schindling Ag Device for unlocking and locking of doors, particularly of motor vehicle doors
EP0017357A1 (en) * 1979-03-30 1980-10-15 Thermoforce Limited Temperature responsive control device
US4358928A (en) * 1980-08-28 1982-11-16 General Motors Corporation Altitude compensation vacuum pump control
US4412416A (en) * 1980-10-20 1983-11-01 General Motors Corporation Altitude compensated vacuum supply system and control
US6230608B1 (en) * 1997-07-25 2001-05-15 Mtd Products Inc Vacuum actuated control mechanism
US20040053742A1 (en) * 2002-07-11 2004-03-18 Axel Schaedler Vacuum actuated direction and speed control mechanism
US7044260B2 (en) 2002-07-11 2006-05-16 Mtd Products Inc. Vacuum actuated direction and speed control mechanism

Similar Documents

Publication Publication Date Title
US2323519A (en) Vacuum operated window regulator
US4347049A (en) Balance hydraulic pumping unit
US2311864A (en) Regulator for vehicle windows or the like
US2301576A (en) Window actuating mechanism
US2009659A (en) Control apparatus
US2345213A (en) Fluid pressure motor system
US2609665A (en) Accessory control system
GB473296A (en) Improvements relating to suction operated wind screen wipers for motor vehicles
US1476703A (en) Door-operating mechanism
US2641107A (en) Accessory system
US2276511A (en) Window regulator
US1864132A (en) Compressor system
US2773353A (en) Window operating or accessory system
US2087387A (en) Clutch control mechanism
US2453125A (en) Vacuum breaker
US2282240A (en) Hydraulic window regulator mechanism
US2378103A (en) Window operator
US1577908A (en) Door-motor control
US2528145A (en) Window operating system
GB402625A (en) Lifting jack apparatus for vehicles
US1868922A (en) Air-motor jack
US2436462A (en) Remote controlled parking windshield wiper motor
US689565A (en) Regulator for air-compressors.
US2654036A (en) Engine starter control
US2438427A (en) Control apparatus