Patents by Inventor Sean P. Callahan

Sean P. Callahan 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: 6062428
    Abstract: A sanitary self sealing viscid product dispenser includes a storage chamber, having an upper end and a lower end, for storing a product to be dispensed; a dispensing device, adjacent the lower end, for dispensing the product; a plunger device, having a piston and a shaft, for compressing the product within the storage chamber toward the dispensing device; a ratchet driven transmission system engaging the shaft to dispense a predetermined amount of the product; a top portion, for covering the upper end and housing the transmission system; a self-cleaning cutting device, adjacent the dispensing device, for simultaneously cutting the product and sealing the dispensing device; and a dual action lever for actuating the transmission system in a first position to dispense the predetermined amount of the product and a second position for actuating the cutting device to cut the product, sealing the dispensing device.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: May 16, 2000
    Inventor: Sean P. Callahan