Communicable Through Small, Openable Aperture In Disk-type Closure Patents (Class 215/310)
  • Patent number: 4954149
    Abstract: A septum for an injection port of a gas chromatograph includes interlocked syringe and duckbill seals. The syringe seal prevents fluid leakage during injection by syringe. The duckbill seal prevents fluid leakage after the syringe needle is withdrawn from the septum. A spring clip is used to urge the duckbill closed as the needle is withdrawn. An advantage of this two component septum is that the duckbill slit can be precisely formed in the duckbill seal before the seals are engaged.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: September 4, 1990
    Assignee: Merlin Instrument Company
    Inventor: James S. Fullemann
  • Patent number: 4872572
    Abstract: A lyophilization stopper made of a rubber elastic material is composed of a shank (1) and a circular disc shaped flange (2) made in one piece with the shank. The shank includes a cavity (4) which surrounds the longitudinal axis (A) of the shank and is open toward the free end face (3) of the shank, while extending toward a central closed wall portion (2b) of the flange. A first section (Z.sub.1) of the shank disposed between a first transverse plane (Q.sub.1) and a second transverse plane (Q.sub.2) has a closed outer circumferential face which has a maximum diameter (D). A subsequent second section (Z.sub.2) includes a passage which communicates with the cavity as well as a plurality of projecting blocking elements (14a-14c). The inner wall surface (19) which laterally delimits the cavity (4) and has an increasing diameter with increasing approach to the free shank end face lies completely outside a cone (K) whose axis is the longitudinal axis (A) of the shank, whose tip (K.sub.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: October 10, 1989
    Assignee: Helvoet Pharma N.V.
    Inventor: Rik Schrooten
  • Patent number: 4355111
    Abstract: A device for culturing microorganisms includes a vessel having a mouth for containing a culture medium and a stopper member for hermetically sealing the vessel. The stopper member is provided with a through hole on its peripheral wall for communicating with the inner atmosphere of said vessel.
    Type: Grant
    Filed: May 28, 1980
    Date of Patent: October 19, 1982
    Assignee: Terumo Corporation
    Inventors: Masaki Shimizu, Takeo Nomura
  • Patent number: 4210255
    Abstract: An end unit intended for packaging products in an associated can or container wherein the product is of the type producing gases so as to normally increase the internal pressure within the can after the closing of the can. The end unit has a vent opening therethrough and is normally closed by a closure member which is held in contact with the container wall surrounding the vent opening by a strip of stretchable material having a memory. When pressure within the container exceeds a predetermined pressure, the closure will move out of the container sealing position under the restraint of the strip, and the container will be vented to the atmosphere.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: July 1, 1980
    Assignee: The Continental Group, Inc.
    Inventor: Peter N. Y. Pan
  • Patent number: 4121730
    Abstract: The invention relates to screw closures for thermally-insulating containers. Each closure has a portion adapted to project into an opening of an inner, thermally-insulating vessel of the container, there being a flexible part provided on said portion, this part being intended to occupy substantially completely the opening of the inner vessel when the screw closure is introduced into the opening to reduce the possibility of heat transfer occurring in the region of the screw closure.
    Type: Grant
    Filed: October 12, 1976
    Date of Patent: October 24, 1978
    Assignee: Dr. Anso Zimmermann Isolierflaschen
    Inventor: Horst Dammer
  • Patent number: 4081107
    Abstract: A venting closure assembly extending across an access opening on the top part of a milk tank. There is a venting closure member having perimeter flange members which fit against a support ring of the milk tank to form one or more circumferential venting channels. A cover having a vent opening fits over the closure member and engages the peripheral portions thereof to form a circumferential seal against the support ring. The venting channel or channels connect to circumferentially spaced openings on the flanges to provide venting from inside the tank to the area outside the tank, while preventing both spilling of the milk and contamination from outside sources.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: March 28, 1978
    Assignee: Light Industrial Design Co., Inc.
    Inventors: Timothy J. Martin, Jr., David C. Waschke