Patents by Inventor Edward C. Duwe

Edward C. Duwe 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: 4132046
    Abstract: A method of casting a plurality of differently configured reinforced concrete crypt modules for use in constructing a substantially monolithic mausoleum edifice is disclosed. A single, universal casting form and a plurality of removable inserts, each adapted to be connected to the casting form are provided. Selected predetermined combinations of the removable inserts are secured to the casting form to alter the exterior configurations of the crypt modules cast in the form in such a way that each differently configured crypt module is provided with interlocking surfaces which are adapted to interlock with complementary interlocking surfaces of another such crypt module.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: January 2, 1979
    Inventors: Edward C. Duwe, William E. Duwe
  • Patent number: 4102098
    Abstract: A lightweight closure panel for a crypt opening and a method of closing and sealing a crypt opening are disclosed. The closure panel is fabricated of synthetic plastic of substantially uniform thickness and comprises a central panel bounded about the perimeter thereof by a relatively resilient edge preferably in the form of a substantially U-shaped groove. The resilient edge of the closure panel is sufficiently flexible to form an interference fit between the closure panel and crypt opening when inserted therein so that a fluid-tight seal can be obtained.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: July 25, 1978
    Inventors: Edward C. Duwe, William E. Duwe
  • Patent number: 3938773
    Abstract: An apparatus for casting reinforced concrete modular crypts for use in constructing a substantially monolithic mausoleum edifice. The casting apparatus includes a frame having a plurality of vertically disposed generally U-shaped brackets attached thereto and a plurality of longitudinal members connecting the brackets which support a flexible, shaped sheet metal casting form. The frame is provided with upright sides or doors, at least one of which is hingedly mounted to the frame. A plurality of arm members attached exteriorly to the casting form engage slots or openings in the hingedly mounted door which is forcibly urged into engagement with the edges of the casting form to enclose the form prior to introduction of a fluent casting material. The casting form is sufficiently rigid to support the casting material without deformation, yet sufficiently flexible to permit rapid extraction of the cast element therefrom with no damage to either the form or element.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: February 17, 1976
    Assignee: Duwe Precast Concrete Products, Inc.
    Inventors: Edward C. Duwe, William E. Duwe