Patent ID: 6871704
Filing Date: 2005-03-29
Classification: E21B

Abstract:
1. A well shut off device for use with a well casing of a well, comprising: an upper face plate having a centrally-located upper coupling; a lower face plate having a centrally-located lower coupling; a shaft passing through said centrally-located upper coupling and said centrally-located lower coupling; said upper face place and said lower face place are provided with a plurality of electrical wire apertures for accommodating electrical wires to pass therethrough; a center seal member disposed between said upper face plate and said lower face plate; and a plurality of adjustable fastening members for holding together said face plates and said central seal member for pressing in on said central seal member to tightly and quickly completely seal said centrally-located upper and lower couplings and said electrical wire apertures, and for urging said central seal member into intimate quick and complete sealing contact with said well casing of said well and with said centrally-located upper and lower couplings when said fastening members are tightened.