发明名称 STRIPPER RUBBER POT MOUNTING STRUCTURE AND WELL DRILLING EQUIPMENT COMPRISING SAME
摘要 An upper stripper rubber canister system comprises a canister body and a canister body lid. The canister body includes an upper end portion, a lower end portion and a central passage extending therebetween. The central passage is configured for having a stripper rubber assembly disposed therein. The upper end portion of the body includes a plurality of bayonet connector structures. The canister body lid includes an exterior surface, an upper end portion, a lower end portion and a central passage extending between the end portions thereof. The exterior surface is configured for fitting within the central passage of the canister body. The canister body lid includes a plurality of bayonet connector structures integral with its exterior surface. Each canister body lid bayonet connector structure is configured for being engaged with one of the canister body bayonet connector structures for interlocking the canister body lid with the canister body.
申请公布号 CA2697061(A1) 申请公布日期 2009.03.05
申请号 CA20082697061 申请日期 2008.07.08
申请人 WILLIAMS, JOHN R. 发明人 WILLIAMS, JOHN R.
分类号 E21B33/06 主分类号 E21B33/06
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