Patents by Inventor Steven P. Hellstrom

Steven P. Hellstrom has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6695829
    Abstract: A container closure system for delivering a fluid. The system includes a stopper constructed to seal fluidly a container. A closure member is mounted on an upper surface of the stopper. The closure member includes a base having an upper surface and a lower surface. The closure member further includes an outer wall and an inner wall extending from the upper surface of the base with the inner wall spaced from the outer wall. The base defines therethrough a needle access port between the inner and outer walls. The inner wall defines a chamber therein. The base further defines therethrough an aperture adjacent the chamber defined by the inner wall. A piercing member is movably disposed within the chamber defined by the inner wall. The piercing member has a first end portion and a second end portion, the first end portion being positioned proximally to the stopper. A piercing tip is mounted on the first end portion and is constructed to pierce the stopper.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: February 24, 2004
    Assignee: Abbott Laboratories
    Inventors: Steven P. Hellstrom, Peter J. Karas, John C. Tanner, II
  • Patent number: 6635043
    Abstract: A cap assembly for a container has a hollow housing with an upper end that receives a fluid transfer device and a lower end that engages a stopper on the container. The housing has an internal cavity open at the upper and lower ends and a radially outwardly extending portion at the lower end. A penetrator is received in the internal cavity. The penetrator has a pointed distal end opposite the stopper and an upper end constructed to be engaged by a fluid transfer device. A cap is constructed the hollow housing. The cap has a closed upper end, an open lower end, a radially outwardly extending portion at the open end, and a circumferential line of weakness connecting the upper and lower ends. A ferrule is over the radially outwardly extending portion of the hollow housing and the radially outwardly extending portion of the cap.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: October 21, 2003
    Assignee: Abbott Laboratories
    Inventors: Richard F. Daubert, Steven P. Hellstrom, Peter J. Karas, John K. Moore, John S. Norman, John C. Tanner, II, Donald Verlee
  • Patent number: 6610041
    Abstract: A penetrator for penetrating a stopper sealing an opening in a container. The penetrator includes a stamped piece of sheet material formed to define a shank having a length. A groove extends along the length of the shank. The shank has a pointed distal. The stamped piece of sheet material further includes a bearing plate extending from the shank at a proximal end opposite the distal end of the shank.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: August 26, 2003
    Assignee: Abbott Laboratories
    Inventors: Richard F. Daubert, Steven P. Hellstrom, Peter J. Karas, John K. Moore, John S. Norman, John C. Tanner, II, Donald Verlee
  • Patent number: 6524295
    Abstract: A penetrator for penetrating a stopper sealing an opening in a container. The penetrator includes a stamped piece of sheet material formed to define a shank having a length. A groove extends along the length of the shank. The shank has a pointed distal. The stamped piece of sheet material further includes a bearing plate extending from the shank at a proximal end opposite the distal end of the shank.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: February 25, 2003
    Assignee: Abbott Laboratories
    Inventors: Richard F. Daubert, Steven P. Hellstrom, Peter J. Karas, John K. Moore, John S. Norman, John C. Tanner, II, Donald Verlee
  • Publication number: 20020019622
    Abstract: A penetrator for penetrating a stopper sealing an opening in a container. The penetrator includes a stamped piece of sheet material formed to define a shank having a length. A groove extends along the length of the shank. The shank has a pointed distal. The stamped piece of sheet material further includes a bearing plate extending from the shank at a proximal end opposite the distal end of the shank.
    Type: Application
    Filed: April 1, 1999
    Publication date: February 14, 2002
    Inventors: RICHARD F. DAUBERT, STEVEN P. HELLSTROM, PETER J. KARAS, JOHN K. MOORE, JOHN S. NORMAN, JOHN C. TANNER, II, DONALD VERLEE
  • Publication number: 20010001116
    Abstract: A penetrator for penetrating a stopper sealing an opening in a container. The penetrator includes a stamped piece of sheet material formed to define a shank having a length. A groove extends along the length of the shank. The shank has a pointed distal. The stamped piece of sheet material further includes a bearing plate extending from the shank at a proximal end opposite the distal end of the shank.
    Type: Application
    Filed: January 4, 2001
    Publication date: May 10, 2001
    Inventors: Richard F. Daubert, Steven P. Hellstrom, Peter J. Karas, John K. Moore, John S. Norman, John C. Tanner, Donald Verlee
  • Publication number: 20010000793
    Abstract: A penetrator for penetrating a stopper sealing an opening in a container. The penetrator includes a stamped piece of sheet material formed to define a shank having a length. A groove extends along the length of the shank. The shank has a pointed distal. The stamped piece of sheet material further includes a bearing plate extending from the shank at a proximal end opposite the distal end of the shank.
    Type: Application
    Filed: December 20, 2000
    Publication date: May 3, 2001
    Inventors: Richard F. Daubert, Steven P. Hellstrom, Peter J. Karas, John K. Moore, John S. Norman, John C. Tanner, Donald Verlee
  • Publication number: 20010000794
    Abstract: A penetrator for penetrating a stopper sealing an opening in a container. The penetrator includes a stamped piece of sheet material formed to define a shank having a length. A groove extends along the length of the shank. The shank has a pointed distal. The stamped piece of sheet material further includes a bearing plate extending from the shank at a proximal end opposite the distal end of the shank.
    Type: Application
    Filed: December 20, 2000
    Publication date: May 3, 2001
    Inventors: Richard F. Daubert, Steven P. Hellstrom, Peter J. Karas, John K. Moore, John S. Norman, John C. Tanner, Donald Verlee
  • Publication number: 20010000347
    Abstract: A container closure system for delivering a fluid. The system includes a stopper constructed to seal fluidly a container. A closure member is mounted on an upper surface of the stopper. The closure member includes a base having an upper surface and a lower surface. The closure member further includes an outer wall and an inner wall extending from the upper surface of the base with the inner wall spaced from the outer wall. The base defines therethrough a needle access port between the inner and outer walls. The inner wall defines a chamber therein. The base further defines therethrough an aperture adjacent the chamber defined by the inner wall. A piercing member is movably disposed within the chamber defined by the inner wall. The piercing member has a first end portion and a second end portion, the first end portion being positioned proximally to the stopper. A piercing tip is mounted on the first end portion and is constructed to pierce the stopper.
    Type: Application
    Filed: December 12, 2000
    Publication date: April 19, 2001
    Inventors: Steven P. Hellstrom, Peter J. Karas, John C. Tanner
  • Patent number: 5954104
    Abstract: A cap assembly is provided for mounting over the mouth of a container which is occluded with a stopper. The cap assembly includes a housing, a moveable piercing member or penetrator within the housing, a removable overcap over the housing, and a ferrule connecting the housing to the container. A preferred form of the penetrator is fabricated from sheet metal in a progressive die stamping process. One form of the overcap includes a frangible construction that permits the upper part of the overcap to be torn away to expose the upper portion of the housing.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: September 21, 1999
    Assignee: Abbott Laboratories
    Inventors: Richard F. Daubert, Steven P. Hellstrom, Peter J. Karas, John K. Moore, John S. Norman, John C. Tanner, II, Donald Verlee
  • Patent number: 5924584
    Abstract: A closure is provided for mounting across the mouth of a container and through which liquid can be withdrawn with a fluid transfer device having a male member. The closure includes a body for being disposed on the container across the container mouth. The body defines a passage with an exterior opening for matingly receiving the male member of the fluid transfer device. A frangible seal initially extends across the passage in the body to occlude the passage. The seal is broken when it is engaged by the male member of the fluid transfer device, thereby establishing fluid communication between the fluid transfer device and the interior of the container.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: July 20, 1999
    Assignee: Abbott Laboratories
    Inventors: Steven P. Hellstrom, Peter J. Karas, John K. Moore, John S. Norman, John C. Tanner, II, Donald Verlee
  • Patent number: 5891129
    Abstract: A penetrator for penetrating a stopper sealing an opening in a container. The penetrator includes a stamped piece of sheet material formed to define a shank having a length. A groove extends along the length of the shank. The shank has a pointed distal. The stamped piece of sheet material further includes a bearing plate extending from the shank at a proximal end opposite the distal end of the shank.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: April 6, 1999
    Assignee: Abbott Laboratories
    Inventors: Richard F. Daubert, Steven P. Hellstrom, Peter J. Karas, John K. Moore, John S. Norman, John C. Tanner, II, Donald Verlee
  • Patent number: 5380173
    Abstract: A peristaltic pump constructed of a relatively small number of components so that performance and reliability criteria can be satisfied in a relatively economical and compact pump. In a preferred embodiment, the occlusion bed pivots about a pair of hinge pins integrally molded with the occlusion bed which are received in lugs integrally molded with the base of the pump. The occlusion bed also preferably includes an integral resiliently-biased latch member which cooperates with a latch plate integrally molded in the base of the pump. The pump preferably includes a rotor in which each of the roller support pins is molded integrally with one of the end plates. To secure tubing in place on the pump, a pair of cantilevered leaf springs urge tubing into slots on tubing retainer plates disposed adjacent the rotor. The roller pins and rollers may be made of a low friction composite material which eliminates the need for bearings therebetween.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: January 10, 1995
    Assignee: Cole-Parmer Instrument Company
    Inventor: Steven P. Hellstrom
  • Patent number: 5082429
    Abstract: A peristaltic pump providing a mechanism for varying tubing occlusion in combination with a camming mechanism which facilitates opening and closing of the pump.
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: January 21, 1992
    Assignee: Cole-Parmer Instrument Company
    Inventors: Charles E. Soderquist, Steven P. Hellstrom
  • Patent number: D421495
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: March 7, 2000
    Assignee: Abbott Laboratories
    Inventors: Steven P. Hellstrom, John K. Moore, John S. Norman
  • Patent number: D421496
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: March 7, 2000
    Assignee: Abbott Laboratories
    Inventors: Steven P. Hellstrom, John K. Moore, John S. Norman
  • Patent number: D425195
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: May 16, 2000
    Assignee: Abbott Laboratories
    Inventors: Steven P. Hellstrom, John K. Moore, John S. Norman