Patents Represented by Attorney Walter C. Vliet

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  • Apparatus for reducing vibration transmission in hand-held tool
    Patent number: 5213167
    Abstract: An air-operated percussive tool incorporates apparatus for reducing vibration transmission from a working end portion to a hand grip, thereby to reduce vibration transmission to the hand/arm of the user. The apparatus includes a male frustoconical portion whose tip is located facing a female bed with the base of the frustoconical part attached to the handle grip while the bed is attached to the working end portion. Three rubber balls are trapped between the portion and bed and the balls are located in their mean positions under compression. Oscillatory movement of the female bed parallel to the longitudinal access of the frustocone causes the balls to roll on the male and female surfaces and effectively provide a rising spring rate or stiffness. Apparatus is also disclosed for reducing vibration transmissions from the working portion to a casing of the tool.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: May 25, 1993
    Assignee: Ingersoll-Rand Company
    Inventors: Anthony Best, Stephen J. Neads
  • 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
  • Belt sander mounting block and guard assembly
    Patent number: 5210981
    Abstract: A two-piece belt sander mounting block and guard assembly is provided which permits the mounting of the belt sanding attachment to a handheld power tool. The guard is separate from the mounting block and is attached thereto permitting variations in materials and guard design to effect economies in materials and manufacture while improving the respective functions of the mounting block and the guard by both material selection and design function.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: May 18, 1993
    Assignee: Ingersoll-Rand Company
    Inventor: Paul Urda
  • Swivel valve for fluid jet cutting
    Patent number: 5209406
    Abstract: A fluid activated valving apparatus for controlling a very high pressure liquid being adapted for serving as a focused jet liquid stream for use in cutting materials comprising an axially-aligned spindle located sealingly in a liquid delivery conduit adapted to introduce the high pressure liquid into a chamber. One or more bearings are disposed slidably about the free end of a spindle enclosed within the valve body, adapted for sealing engagement, and also to permit unstressed rotation of the spindle through a 360.degree. arc about the spindle longitudinal axis in response to torsional stresses being intermittently exerted on the exposed free end of the spindle.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: May 11, 1993
    Assignee: Ingersoll-Rand Company
    Inventor: Jack L. Johnson
  • Adjustable eductor
    Patent number: 5205489
    Abstract: A body, centrally bored, has a threaded inlet section which threadedly, and adjustably receives a through-bored nozzle. The nozzle has an inner end which intrudes into a transverse passage formed of two, communicating holes formed in the body. The holes ingest fluent material, and the nozzle is selectively locked in a given axial position, in the body, by an internally and externally threaded lock bushing. The bushing threadedly engages an end of the nozzle and is torqued up against the body to hold the nozzle in place.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: April 27, 1993
    Assignee: Silver Engineering Works, Inc.
    Inventor: Ted D. Milner
  • Trigger valve assembly
    Patent number: 5205540
    Abstract: A trigger and valve assembly for a power tool and the like wherein the trigger stem is provided with an aperture for receiving and capturing a valve stem upon assembly of the tool components. The aperture further prevents removal of the trigger assembly upon assembly.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: April 27, 1993
    Assignee: Ingersoll-Rand Company
    Inventor: John M. Clapp
  • Push button reverse valve for power tool
    Patent number: 5199460
    Abstract: A rotary spool reversing valve is described which is operated in rotation by two parallel opposed push buttons. The spool is positioned in line with the incoming air passage permitting incoming air to flow axially through the spool directly to forward or reverse motor ports with a minimum of pressure loss. Thumb operation of the push buttons in a pistol grip tool permits convenient one hand operation with simple molded mechanisms providing economy and ease of operation.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: April 6, 1993
    Assignee: Ingersoll-Rand Company
    Inventor: Robert E. Geiger
  • Fluid connection and control device for fluid machines
    Patent number: 5197711
    Abstract: A fluid connection and control device for fluid machines permtis fluid inlet or outlet connections without the necessity for threaded adapters. This is accomplished by a radially symmetrical body having first and second ends and a central axial fluid passage connecting the ends. The body is appropriately sized for the fluid channel of the fluid machine and has a provision at the first end for attachment of a flexible hose. The second end has a provision for a fluid tight seal between the body and the fluid channel as well as a mechanism by which the body is captured within the fluid channel of the fluid machine. Options are provided for incorporation of a valve mechanism for controlling the fluid flow. The valve mechanism may be incorporated as an integral part of the body or as a separate modular unit which is retained in the fluid channel by the connector body.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: March 30, 1993
    Assignee: Ingersoll-Rand Company
    Inventors: Robert E. Geiger, John M. Clapp
  • Means for producing a high brix lump-free magma
    Patent number: 5196068
    Abstract: A water-conducting lance, fitted with a spray nozzle at an end thereof, is fixed to the top of a massecuite-separating centrifuge which has a rotating basket, to dispose the nozzle in adjacency to the top of the basket. The nozzle addresses the top of the basket, perpendicularly, and sprays pre-wetting water onto sugar crystals thereat, to insure a good mix of the crystals with subsequent mixing liquid (also water) in a mixing liquid zone, in order that a lump-free high brix magma will be produced.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: March 23, 1993
    Assignee: Silver Engineering Works, Inc.
    Inventor: Ted D. Milner
  • Belt sander tensioner
    Patent number: 5183441
    Abstract: A belt tensioning device for a belt sander is disclosed in the form of a guided U shaped saddle permitting economies in manufacture associated with external milling of the cantilever extension bar of a small belt sander for use with handheld power tools.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: February 2, 1993
    Assignee: Ingersoll-Rand Company
    Inventor: Urda, Paul
  • Torque Control clutch
    Patent number: 5167309
    Abstract: A torque control shutoff clutch for power tools is provided with a torque recovery camming device which assists in decoupling the applied power of the clutch along with the shutting off of the motor driving the power tool. The clutch permits automatic reset of the device upon release of the throttle trigger and further throttles air flow to the power source just prior to shutoff thereby minimizing operator shutoff torque reaction.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: December 1, 1992
    Assignee: Ingersoll-Rand Company
    Inventors: Gregory P. Albert, Stephen J. Synoracki
  • 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
  • "V" filter cleaning lance
    Patent number: 5133105
    Abstract: A filter cleaning lance having a fast acting valve on a handle portion and an extension portion which terminates in a distributor disposed at essentially right angles to the extension portion. The distributor is further provided with a series of nozzles directed perpendicularly from a plane in which both the distributor and the extension handle lie so as to efficiently clean a filter surface having limited access.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: July 28, 1992
    Assignee: Ingersoll-Rand Company
    Inventor: Robert G. Littlefield
  • Integrated spindle actuator assembly for nut-runners
    Patent number: 5123309
    Abstract: Disclosed is an integrated spindle actuator assembly for nut-runners wherein the spindle is pneumatically operated to engage and retract from the intended work device including an internal piston formed on the spindle end in conjunction with a spline which permits the spindle to translate towards the work when pressure fluid is applied to the spindle assembly. In its extended position, rotation of the spindle is possible, the spindle requiring a minimum of radial clearance, thereby permitting close spacing of the nut-runners.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: June 23, 1992
    Assignee: Ingersoll-Rand Company
    Inventor: Thomas J. Moceri
  • Lubricator
    Patent number: 5123504
    Abstract: A lubricator for pneumatic driven power tools and the like is disclosed which operates on the principle of receiving impact air to pressurize an oil reservoir to provide a metered flow of lubricant in proportion to the amount of air flow in one direction and to bypass the pressure differential created during reverse flow so as to avoid lubricant delivery during reverse flow. The lubricator communicates between a delivery air passageway and a oil reservoir and is provided with parallel passages, one of which extends forward of the other into the air stream to produce a pressure differential.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: June 23, 1992
    Assignee: Ingersoll-Rand Company
    Inventors: Roy E. Oetting, John J. Pazzaglia, Duane S. Gable
  • Means for producing a high brix sugar liquid
    Patent number: 5114489
    Abstract: An annular compartment is disposed below the mixing ring of a rotating-basket, massecuite-separating centrifuge, to receive the magma therein. Eductors arrayed in the compartment receive hot water, and ingest magma, to eject the mix therethrough and to centrifuge the mix, while melting the sugar crystals in the magma. The melted crystals, now high brix sugar liquid, is overflowed into a companion compartment; from thence the liquid is passed over a weir, into a sub-compartment, for subsequent discharge.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: May 19, 1992
    Assignee: Silver Engineering Works, Inc.
    Inventors: Ted D. Milner, Robert V. Zimmerman
  • Valve assembly for fluid pressure regulation
    Patent number: 5113898
    Abstract: A valve assembly for fluid pressure regulation provides freedom from static pressure creep by eliminating distortions and stresses normally introduced to valve parts during assembly of the regulator. A floating valve seat permits normal installation of a valve seat housing in the regulator body with no transfer of stress or distortion to the valve seat. Thus statis pressure creep, normally attributable to micro distortions of the valve seat, is avoided. Options are also provided to install the floating valve seat directly in a regulator body without the valve seat housing.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: May 19, 1992
    Assignee: The Aro Corporation
    Inventors: Lawrence W. White, Gabriel J. Pietrykowski, Stephen D. Able
  • Conductive plastic fluid handling equipment
    Patent number: 5108270
    Abstract: A fluid handling apparatus having a casing constructed of a conductive corrosion resistant plastic material formed from acetal resin impregnated with conductive stainless steel wool. When grounded through use of a convenient bonding strap, the apparatus eliminates the buildup of electrostatic charge which may occur in combustible fluid transfer.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: April 28, 1992
    Assignee: The Aro Corporation
    Inventor: Nicholas Kozumplik, Jr.
  • Display rack
    Patent number: D330650
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: November 3, 1992
    Assignee: Ingersoll-Rand Company
    Inventors: Robert B. Staubitz, Kenneth D. Harris, Jr., Timothy C. Repp
  • Electric motor driven nutrunner
    Patent number: D335808
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: May 25, 1993
    Assignee: Ingersoll-Rand Company
    Inventors: Robert H. Bruno, Kenneth J. Dubuque, David R. Melrose