Patents by Inventor Alan K. Rycroft

Alan K. Rycroft 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: 4865592
    Abstract: A container and needle assembly includes a container body portion having a proximal end, a distal end and a side wall therebetween defining a chamber for retaining fluid and a tip portion extending from the distal end of the body portion having a passageway therethrough. A projection extends outwardly from the tip portion. A pierceable barrier is provided for preventing fluid communication between the chamber and the passageway. A hub having a forward end, a rearward end and a conduit therethrough is movably positioned within the passageway. A first cannula extends outwardly from the forward end of the hub and a second cannula extends outwardly from the rearward end of the hub. A needle shield movably engaging the tip, covers the first cannula. This needle shield has an outer extension portion extending over a portion of the tip which is capable of contacting the projection for limiting the motion of the needle shield toward the proximal end of the body portion.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: September 12, 1989
    Assignee: Becton, Dickinson and Company
    Inventor: Alan K. Rycroft
  • Patent number: 4758230
    Abstract: A syringe barrel assembly includes a plurality of syringe barrels each containing a barrel portion having an open proximal end, a chamber for retaining fluid, and a tip portion extending from a distal end of the barrel portion having a passageway therethrough. The passageway is adapted to accept the hub and second cannula of the hypodermic needle assembly having a hub, a first cannula extending outwardly from a distal end of the hub and a second cannula extending outwardly from a proximal end of the hub wherein the cannulae are in fluid communication. Piercable barrier means is provided in each of said passageways for preventing fluid communication between the chamber and the passageway. A plurality of web portions extending radially outwardly from the tip portions connects the syringe barrel. The web portions are integrally formed from the same material as the syringe barrels.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: July 19, 1988
    Assignee: Becton, Dickinson and Company
    Inventor: Alan K. Rycroft
  • Patent number: 4639250
    Abstract: A syringe barrel and hypodermic needle assembly includes a barrel portion having a chamber for retaining fluid and a portion extending from the distal end of the barrel portion having a passageway therethrough. A projection extends outwardly from the tip portion. A piercable barrier is provided for preventing fluid communication between the chamber and the passageway. A hub having a forward end, a rearward end and a conduit therethrough is movably positioned within the passageway. A first cannula extends outwardly from the forward end of the hub and a second cannula extends outwardly from the rearward end of the hub. A needle shield movably engaging the tip, covers the first cannula. This needle shield has an outer extension portion extending over a portion of the tip which is capable of contacting the projection for limiting the motion of the needle shield toward the proximal end of the barrel.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: January 27, 1987
    Assignee: Becton, Dickinson and Company
    Inventor: Alan K. Rycroft