Patents by Inventor Bradley A. Otis

Bradley A. Otis 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).

  • Non-polluting sampler
    Patent number: 4587856
    Abstract: Solids are sampled without releasing dust and fumes by bolting to a solids chute a sampling arrangement including a knife gate valve, a sampler housing and a sliding sampler canister that maintains a seal along the housing wall when the valve is open.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: May 13, 1986
    Assignee: Shell Oil Company
    Inventor: Bradley A. Otis