Patents Assigned to Air-Mo Hydraulics, Inc.
  • Patent number: 5156043
    Abstract: A hydraulic chuck device for testing the integrity of a ferrule sealed to a tube proximate one end of the tube. The device includes a chuck body having an inlet end with an internal collet engaging surface and a second end. Collets are mounted inside the inlet end of the body. The collet has faces shaped to conform to a ferrule on a tube, and normally urges the collets against the engaging surface of the body. An actuator is connected to a source of fluid, and is mounted in the body. The actuator includes a ferrule seal which is normally in a ferrule engaging position for introducing the fluid to the tube. A handle is provided for inserting a ferrule and tube into the device to allow the collets to engage the ferrule on one side of its seal to the tube and the ferrule seal to engage the ferrule on the other side of its seal to the tube when fluid is introduced into the tube.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: October 20, 1992
    Assignee: Air-Mo Hydraulics Inc.
    Inventor: Paul N. Ose
  • Patent number: 5134872
    Abstract: A hydraulic chuck device for enlarging the end of a tube, which includes a chuck body having first and second inlets for a source of fluid under pressure. The device has a tube receiving end where the tube to be enlarged is inserted. Also included is a piston mounted in the body which is adapted to move toward the tube receiving end upon introduction of fluid under pressure to the first inlet and away from the tube receiving end upon introduction of fluid under pressure to the second inlet. The piston has a tube engaging sizing ball on one end for enlarging a tube inserted into the tube receiving end of the body when the piston moves toward that end. Also provided are collets mounted in the body at the receiving end to engage the tube and prevent movement thereof with respect to the body. The collets are cooperatively attached to the piston to engage and release the tube as the piston moves toward and away from the tube receiving end.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: August 4, 1992
    Assignee: Air-Mo Hydraulics Inc.
    Inventor: Paul N. Ose
  • Patent number: 4485653
    Abstract: A threaded coupling chuck device for use with a male threaded tube, including a body, a shaft for rotation, a sleeve and adaptor, nose cone, seal means, port means and a valve.The body is centered about an axis and has a sleeve rotably mounted inside the body. This sleeve is driven by the shaft means which rotates the sleeve in a first direction for coupling with the tube and the other direction to uncouple.Fixedly mounted in the sleeve is an adaptor means which has a nose cone supported on it. The nose cone has a threaded portion for forming a coupling with the male threaded tube upon rotation of the shaft in the first direction. The nose cone may also have a tapered surface adjacent the threaded portion to guide the tube into coupling contact with the threads.Seal means are provided generally at all junctions, and particularly for preventing passage of fluid between the tube and the nose cone coupling.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: December 4, 1984
    Assignee: Air-Mo Hydraulics Inc.
    Inventor: Robert Rasmussen
  • Patent number: 4485654
    Abstract: A threaded coupling chuck device for use with a female threaded tube, including a chuck body, adaptor means, probe means, seal means, and port means.The body has an axis of rotation and shaft means for rotation, centered about said axis. Adaptor means are mounted on the body and have a threaded portion for engagement with the threaded tube to form a threaded coupling upon rotation of the internal portion of said body in a first direction about said axis. Probe means are slideably mounted in contact with the adaptor means and are positioned to align the respective threaded portions of said adaptor and said tube.Seal means are included, and are positioned to prevent passage of fluid through the coupling. The seal includes a threaded annular portion of the adaptor means, which portion is adapted to expand into contact with the tube upon activation. The seal means includes piston means positioned to glide along the axis from a first position to a second position where the seal is activated.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: December 4, 1984
    Assignee: Air-Mo Hydraulics Inc.
    Inventor: Robert Rasmussen
  • Patent number: 4460200
    Abstract: A hydraulic chuck haging a piston means with an axially centered fluid passage and a tube seating means on one end thereof. Collet means are provided and are mounted on the piston means such that axial movement of the piston means operates the collet means. The chuck body is slideably mounted on the piston means and has a nose cone means fixedly mounted on the body means. The nose cone means includes a collet engaging surface to close the collet upon engagement of the surface and the collet means. Seal means for preventing passage of fluid between the tube and the collet means are provided and include a seal cartridge means adjacent to tube seating means on the piston means. Seal seat means are slideably contacting the cartridge means and keyed to the collet means to define a seal cavity between the seal seat and the seal cartridge. The cavity has a first size when the collets are open and a smaller second size when the collets are closed.
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: July 17, 1984
    Assignee: Air-Mo Hydraulics, Inc.
    Inventors: Robert F. Rasmussen, George R. Smida, Robert L. Wietecha, Gary L. Pearson
  • Patent number: 4432569
    Abstract: A chuck device for use with a flexible hose including a porting tube means for attachment at one end to a source of hydraulic fluid and having a central passage for the fluid. Attached on the other end of the porting tube is a seal cartridge means which has a hose engaging cylinder extending away from the porting tube to engage the interior of the hose. Collet means are mounted on the cartridge means and are positioned to engage the exterior of the hose when the hose is on said cylinder. A chuck body means is included which is slideably mounted on the porting tube and the cartridge means to define a power chamber. The porting tube has a fluid passage connecting the power chamber to the central passage of the porting tube. Finally, nose cone means are mounted on the body means and has a collet means engaging surface. The passage of fluid into the chamber forces the collets against the surface and causes them to urge the collets against the hose.
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: February 21, 1984
    Assignee: Air-Mo Hydraulics, Inc.
    Inventor: Robert L. Wietecha
  • Patent number: 4393674
    Abstract: A hydraulic chuck device for use with the inside of a tube. Included is a body defining a chamber and a piston slideably mounted in said chamber. An axially centered stem means is mounted at one of its end on said piston and has a passage along its axis, while sleeve means slideably cover said stem means and are mounted on said body. Collet means are operably connected to said stem means and said sleeve means such that relative movement of one with respect to the other causes activation of said collets. First fluid means are connected to said piston to cause relative movement between said stem and said sleeve, and second fluid means are connected to said stem means for passage of fluid through said passage of said stem means into the inside of said tube.
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: July 19, 1983
    Assignee: Air-Mo Hydraulics, Inc.
    Inventor: Robert Rasmussen
  • Patent number: 4189162
    Abstract: A hydraulic chuck having a piston means with an axially centered passage, the first end of which has a tube seating means associated therewith for engaging a tube. Collet means are provided and located at the first end of the piston means for engagement of the tube upon closure of the collet means. Biasing means operably connected to the piston means for normally forcing the surface means upon the collet means are also provided. Sealing means adjacent to tube feeding means for sealing the tube to the chuck, including seal seat means adjacent to collets and positioned to compress the seal radially inward under pressure of the biasing means, are provided. Finally, the handle or attachment means is provided to operably connect to the biasing means to remove the surface means from the collet means, thereby releasing the radially inward compression of the sealing means and permitting insertion of the tube.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: February 19, 1980
    Assignee: Air-Mo Hydraulics, Inc.
    Inventors: Robert F. Rasmussen, George R. Smida, Robert L. Wietecha, Gary L. Pearson