Patents Assigned to ARO
  • Mechanical shift, pneumatic assist pilot valve
    Patent number: 5527160
    Abstract: A pneumatic assist valve receives constant air pressure from supply air to provide the pneumatic assist to shift the pilot, eliminating false signals acting on the trip rod and the design also assures the pilot has completely shifted before diaphragm reversal occurs.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: June 18, 1996
    Assignee: The Aro Corporation
    Inventors: Nicholas Kozumplik, Jr., Richard K. Gardner
  • Multiple valve manifold with plural power supplies
    Patent number: 5495871
    Abstract: A modular valve system in which individual valves are housed in individual, discrete, pluggable units so that they can easily be assembled. Each unit housing a valve also houses the necessary electrical circuity both to control and actuate the valves. The electrical circuit necessary to actuate a valve has its own power supply and is separate from the circuit that generates the control signal which also has its own power supply.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: March 5, 1996
    Assignee: The Aro Corporation
    Inventors: Joseph L. Meloche, Jeffery W. Smith
  • Pneumatic lift device for dual flow valve
    Patent number: 5494078
    Abstract: Positive adjustable flow is provided for a dual flow valve for paint dispensing or the like utilizing a sliding piston and a lost motion device in combination with an adjustable stop and wherein operating lift is provided by a single pressure source alternatively applied to a plurality of operating pistons.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: February 27, 1996
    Assignee: The ARO Corporation
    Inventor: Robert J. Schulte
  • "V" shaped check stop
    Patent number: 5477880
    Abstract: A "V" shaped check stop is provided formed of spring steel or the like having a substantially greater depth than thickness to minimize frontal area in the direction of flow and further to provide for added resistance strength in the direction of flow and ease of installation in a circumferential groove on assembly.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: December 26, 1995
    Assignee: The ARO Corporation
    Inventors: Raymond D. Carter, Kerry G. Vonalt
  • Overrun control device
    Patent number: 5474105
    Abstract: A pneumatic fluid flow limiting device which is pressure compensated and resets automatically when the pneumatic fluid driven device is shut off. Pressure compensation is accomplished by a vented differential diameter chamber and reset is accomplished by a bypass orifice in a spool valve which further may be variable in flow to accommodate different flow requirements for tool operation.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: December 12, 1995
    Assignee: The Aro Corporation
    Inventors: Stephen D. Able, Raymond D. Carter
  • Transition spool for pneumatic valve
    Patent number: 5404912
    Abstract: Disclosed is a means for conveying air required for pneumatic malfunction around an electrical connection, in particular where space is restricted to meet International standards. The invention is shown to provide manufacturing and assembly access while minimizing the occupied cross sectional area of the available passageway space in a stacked pneumatic valve.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: April 11, 1995
    Assignee: The Aro Corporation
    Inventors: Rick Hausler, Anthony Roshko
  • Air operated double diaphragm pump
    Patent number: 5391060
    Abstract: The design of an air operated double diaphragm pump provides improved assembly, mounting flexibility, multiple plumbing combination including check valves which allow the pump to be mounted in any position without effecting its ability to prime or pump. A two shell housing design provides an enclosure for the air motor and includes structural ribbing, internal baffling, and all connections are made on the end of the pump in line with the diaphragm centerline allowing the pump to be installed in any access in line with the plumbing system.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: February 21, 1995
    Assignee: The Aro Corporation
    Inventors: Nicholas Kozumplik, Jr., Gerald M. Distel
  • Spring check valve cartridge
    Patent number: 5348046
    Abstract: A reversible check valve cartridge wherein a sealing disk is urged to the shutoff position by means of a cage mounted umbrella spoke-like spring which is secured to the cage and is fully recessable therein so as to permit full travel of the sealing disk within the cage, thereby permitting increased flow for a given thickness of the valve cartridge.
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: September 20, 1994
    Assignee: The Aro Corporation
    Inventors: Nicholas Kozumplik, Jr., Gerald M. Distel
  • Air valving mechanism, in combination with a double diaphragm pump subassembly
    Patent number: 5334003
    Abstract: A double diaphragm pump subassembly, having a pair of diaphragm mounting plates, wholly confines an air valving mechanism between the plates. The mechanism is modular in nature, being substantially devoid of fasteners, and is nested in the plates for easy removal and parts replacement.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: August 2, 1994
    Assignee: The Aro Corporation
    Inventors: Richard K. Gardner, Gordon M. Schroeder
  • Installation for controlling tooling including a clamp for performing a determined operation on workpieces, relative displacement of the clamp and said workpieces being controlled by an automatic positioning system
    Patent number: 5321225
    Abstract: The welding operation performed by the clamp 12 is under the control of a welding cabinet 15 including a servo-control unit 16' and an electronic switch 17. The clamp is moved from one weld spot to another by a robot 13 under the control of a control unit 14 provided with a servo-control unit 16. The switch 17 is controlled in such a manner that the welding operation and the beginning of the clamp opening operation and the end of the clamp closing operation are under the control of the welding cabinet 15 (with the robot then remaining stationary), while displacement of the clamp synchronizing with wide opening and closing thereof are under the control of the control unit 14.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: June 14, 1994
    Assignee: Aro
    Inventor: Jean-Noel Boyer
  • Tooling comprising tongs with two pivoted arms, with a release system
    Patent number: 5299848
    Abstract: A tool comprising tongs with two pivoted arms and a release system. The two arms each bear, at their respective ends, pressure members. A drive motor causes the arms to pivot with respect to one another, either to close them and thus permit the pressure members to grip the part to be treated, or to open them and permit the release of the part with respect to the tongs after treatment. This tool in addition includes a release system which insures that the two pressure members are well separated from the part after actuation of the opening of the arms. The release system includes a coupling device adapted to actively control the opening and closing of the arms using a fraction of the power of the drive motor. Preferably, this coupling device is an electrically controlled clutch.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: April 5, 1994
    Assignee: ARO S.A.
    Inventor: Jean-Noel Boyer
  • Selection switch for fluid power motors
    Patent number: 5213136
    Abstract: A device for retaining a depressed reversing valve in the depressed position which is operable by the fingers or thumb of one hand to accomplish both the depressing and locking motions and the unlocking motion when it is desired to return the tool to conventional push to reverse operation. This is accomplished by a notched rotary sleeve mounted to the tool housing.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: May 25, 1993
    Assignee: The Aro Corporation
    Inventors: Phil D. Thorp, Stephen F. Sims
  • Valve construction for automatic shut-off screwdrivers and the like
    Patent number: 5159987
    Abstract: A valve construction for dual valve automatic and manual shut-off screwdrivers and the like wherein construction of the valve features both valve elements in a central axial bore having a unique valve block which is held in place by a screw in a transverse bore, the unique construction permits operation of the manual valve by a pin in the cross bore, aligns the stem of the manual valve, and permits ready access to the stem and valve of the automatic shut-off device as well as assembly of all of the components through access in a single longitudinal bore.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: November 3, 1992
    Assignee: The Aro Corporation
    Inventors: Phil D. Thorp, Stephen F. Sims
  • Torque sensing automatic shut-off and reset clutch for screwdrivers, nutsetters and the like
    Patent number: 5156244
    Abstract: An improved torque control and fluid shut-off mechanism for a fluid operated tool includes a driving clutch member and a driven bit holder connected by ball bearings retained by the clutch member which engages in pockets in the bit holder. The pockets include a specific ramp construction which insures that the threshold torque level of the tool in the forward direction is less than the threshold level in the reverse direction.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: October 20, 1992
    Assignee: The ARO Corporation
    Inventors: Douglas E. Pyles, Phil D. Thorp, Ward W. Harvey
  • Fluid pulsation dampener having spiral grooved bellows
    Patent number: 5133387
    Abstract: A bellows is comprised of a unitary body formed of relatively thin annular walls, open at one end and closed at the other. The walls are constructed and arranged as a spiral groove, whereby the bellows can be fabricated from plastic by injection molding in a relatively inexpensive fashion. The bellows can be formed of two layers joined to one another, a backup layer formed of metal or plastic and a protective layer formed of plastic such as PFA and PVDF.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: July 28, 1992
    Assignee: The Aro Corporation
    Inventors: Gabriel J. Pietrykowski, Lawrence W. White
  • Diaphragm pump
    Patent number: D347639
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: June 7, 1994
    Assignee: The ARO Corporation
    Inventors: Kelly Fast, John R. Shafer, Thomas E. Burton
  • Diaphragm pump
    Patent number: D370488
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: June 4, 1996
    Assignee: The Aro Corporation
    Inventors: Nicholas Kozumplik, Jr., Robert C. Elfers, Douglas D. Purdy
  • Pneumatic cylinder
    Patent number: D370683
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: June 11, 1996
    Assignee: The ARO Corporation
    Inventors: David B. Stahlman, Donald E. Marlow
  • Earring clip
    Patent number: D388357
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: December 30, 1997
    Assignee: Aro-Sac, Inc.
    Inventor: Robert A. Montaquila
  • Earring clip
    Patent number: D388734
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: January 6, 1998
    Assignee: Aro-Sac, Inc.
    Inventor: Robert A. Montaquila