Patents by Inventor Ulick Stafford

Ulick Stafford 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: 9102557
    Abstract: An un-pressurized chlorination device comprises a container having an open top closed by a removable lid. The container defines an inner chamber for a plurality of chlorination tablets. The container has a lower inlet spigot for receiving a water supply inlet pipe. The container also has a lower water outlet through which chlorinated water is delivered. There is a water flow path between the inlet and the outlet. The tablet chamber is not pressurized and the outlet discharges to atmosphere pressure. The device of the invention is useful for dissolving, dispersing and dispensing soluble material in tablet form into a liquid. There is a substantially horizontal fluid path with just enough fall to the outlet to allow the device to drain down out of the outlet when there is no inlet flow.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: August 11, 2015
    Assignee: MEDENTECH LIMITED
    Inventor: Ulick Stafford
  • Publication number: 20120152813
    Abstract: An un-pressurised chlorination device comprises a container having an open top closed by a removable lid. The container defines an inner chamber for a plurality of chlorination tablets. The container has a lower inlet spigot for receiving a water supply inlet pipe. The container also has a lower water outlet through which chlorinated water is delivered. There is a water flow path between the inlet and the outlet. The tablet chamber is not pressurised and the outlet discharges to atmosphere pressure. The device of the invention is useful for dissolving, dispersing and dispensing soluble material in tablet form into a liquid. There is a substantially horizontal fluid path with just enough fall to the outlet to allow the device to drain down out of the outlet when there is no inlet flow.
    Type: Application
    Filed: August 18, 2010
    Publication date: June 21, 2012
    Inventor: Ulick Stafford
  • Publication number: 20120015948
    Abstract: A water soluble effervescent disinfecting tablet comprises a chlorinated isocyanurate such as anhydrous sodium dichloroisocyanurate. The tablet also comprises an alkali metal bicarbonate such as sodium bicarbonate, an aliphatic carboxyl acid such as adipidic acid, and a dessicant base such as sodium carbonate. The tablet contains a masking agent, especially isoamyl acetate and/or L-methone in an amount to mask taste and/or odour characteristics of the chlorinated isocyanurate.
    Type: Application
    Filed: March 31, 2010
    Publication date: January 19, 2012
    Inventor: Ulick Stafford
  • Publication number: 20050258096
    Abstract: A process for treating biomedical devices, especially contact lenses, involves contacting polymeric devices containing extractables with a solvent that dissolves and removes the extractables from the devices. The devices are subjected to at least two treatments with solvent to remove extractables in the devices. One of the treatment steps involves solvent used as a final rinse for a prior batch of devices. The solvent may be circulated through a series of tanks, in which case the devices are first extracted in the downstream tanks, followed by extraction in the first tank containing fresh incoming solvent.
    Type: Application
    Filed: May 3, 2005
    Publication date: November 24, 2005
    Inventors: Ulick Stafford, Sanjay Rastogi, Mahendra Nandu, William Appleton
  • Patent number: 6601315
    Abstract: A combined fluidized bed dryer and absorption bed allows an absorbant to be dried to remove any moisture therefrom immediately followed by treating a product material with the dried absorbant, all in the same vessel, such that the absorbant is at its optimum dryness prior to treating the product material therewith The invention has particular application in the ophthalmic lens production where the absorbant is alumina and is used to remove methacrylic acid from liquid monomer prior to using the monomer in producing lenses.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: August 5, 2003
    Assignee: Bausch & Lomb Incorporated
    Inventor: Ulick Stafford
  • Patent number: 6581761
    Abstract: A tray assembly for holding small devices such as polymeric ophthalmic lenses includes a mesh insert having a plurality of wells for containing individual lenses. The assembly may also include a support tray having a perimeter substantially conforming in shape to the outer edge of the mesh insert. Contact is maintained between the support tray and the mesh insert to confine the lenses within the assembly. A stack assembly includes a plurality of multiwell circular mesh trays and corresponding mesh tray covers stacked and secured on a center shaft and provides substantially enhanced efficiency and productivity in processes such as extraction or hydration. Additionally, portions of the mesh insert and support tray may be used with such processes such as lens coating and surface treatment.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: June 24, 2003
    Assignee: Bausch & Lomb Incorporated
    Inventors: Ulick Stafford, Larry C. Hovey, Madhu Ayyagari
  • Publication number: 20020073572
    Abstract: A combined fluidized bed dryer and absorption bed allows an absorbant to be dried to remove any moisture therefrom immediately followed by treating a product material with the dried absorbant, all in the same vessel, such that the absorbant is at its optimum dryness prior to treating the product material therewith The invention has particular application in the ophthalmic lens production where the absorbant is alumina and is used to remove methacrylic acid from liquid monomer prior to using the monomer in producing lenses.
    Type: Application
    Filed: December 14, 2000
    Publication date: June 20, 2002
    Inventor: Ulick Stafford