Patents by Inventor Paul R. Darnell

Paul R. Darnell 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).

  • Container with cap attached by a double hinge
    Patent number: 5200153
    Abstract: A container or vessel useful in the preparation of bacterial extracts or similar analytical samples, constructed of resilient flexible plastics material and having a releasably engageable cap (3) incorporating a nozzle (8) through which liquid contents of the container may be expressed by squeezing the container, the cap being linked to the container by a double hinge comprising two strips (14a, 14b) of material which fold back upon themselves when the container is closed by the cap, the apices (18a, 18b) of the folded hinge strips together providing contact points upon which the capped end of the container may be rested on a horizontal surface such as a work bench.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: April 6, 1993
    Assignee: Unilever Patent Holdings, B.V.
    Inventors: Anthony H. Carr, Paul R. Darnell, Ian W. Davidson