Patents by Inventor Tjeerd van Breest Smallenburg

Tjeerd van Breest Smallenburg 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).

  • Method for manufacturing a measuring capillary
    Patent number: 4477961
    Abstract: A method for manufacturing a measuring capillary, wherein in each of a number of substantially plate-shaped parts 1, a recess 2, 3 is formed. The shape of the recesses 2, 3 is such that when said plate-shaped parts 1 are superposed with the recesses 2,3 facing each other, said recesses 2,3 define the capillary. The walls of the recesses 2, 3 and at least the plate surface portions directly adjacent thereto are coated by a substance. The plate-shaped parts 1 are superposed such that the recesses 2, 3 formed therein together define a capillary and the plate-shaped parts 1 are secured to each other.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: October 23, 1984
    Assignee: Tjeba Holding BV
    Inventor: Tjeerd van Breest Smallenburg