Patents Assigned to David C. Nelson
  • Patent number: 5989093
    Abstract: A balloon weight and ribbon assembly includes a spool having a length of ribbon wound thereabout, the ribbon being secured at one end to the spool and at the other end to a breakaway tab which initially comprises a part and parcel of the spool. A dimple in the tab accommodates receipt of a double knot at one end of the ribbon, while a slot in the spool accommodates receipt of a double knot of the ribbon at the opposite end. A piece of double backed adhesive tape is provided on the breakaway tab to allow for securement of the tab to the neck or tail of an inflated balloon.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: November 23, 1999
    Assignee: David C. Nelson
    Inventors: David C. Nelson, Michael J. Frazier, Michael J. Fresh, John W. Schneiter
  • Patent number: 5944576
    Abstract: A stick and cup assembly for receiving and securing a balloon includes an elongated stick with a cup maintained at one end thereof. The cup is formed integrally with the stick. A collar is slidingly received upon the stick for selective locking engagement with the cup for securing a balloon thereto. The stick is preferably formed of a composition of polyester and rubber such that the stick is capable of being manually formed into any desired configuration and which retains that configuration once so formed.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: August 31, 1999
    Assignee: David C. Nelson
    Inventors: David C. Nelson, Bruce W. Walden
  • Patent number: 4921402
    Abstract: A valving mechanism for a balloon inflator is presented. The valving mechanism is attached to an inflator comprising a fan driven by a through-flow motor. A piston, received within a cylinder, has two bores passing therethrough, the first bore communicating with atmosphere, and the second bore communicating with a nozzle adapted for receipt of a balloon neck. When the balloon is placed on the nozzle and the piston is urged against a spring, an airstream passes through the second bore to inflate the balloon. When the balloon is removed, a spring urges the piston to a position in which the airstream passes through the first bore to atmosphere reducing the load on the motor and allowing the motor to run cooler.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: May 1, 1990
    Assignee: David C. Nelson
    Inventors: David C. Nelson, William E. Bartasevich, Robert L. Waldo