发明授权
- 专利标题: Low volumetric expansion hose
- 专利标题(中): 低体积膨胀软管
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申请号: US939232申请日: 1986-12-08
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公开(公告)号: US4699178A公开(公告)日: 1987-10-13
- 发明人: Donald E. Washkewicz , Harold Belofsky
- 申请人: Donald E. Washkewicz , Harold Belofsky
- 申请人地址: OH Cleveland
- 专利权人: Parker Hannifin Corporation
- 当前专利权人: Parker Hannifin Corporation
- 当前专利权人地址: OH Cleveland
- 主分类号: D04C1/06
- IPC分类号: D04C1/06 ; E21B34/16 ; F16L11/12 ; F16L11/02
摘要:
A high burst strength flexible composite hose having low volumetric expansion under pressure includes a thermoplastic core tube, one or more braided reinforcing layers of high strength aramid yarn having a tensile modulus of elasticity of about 17,000,000 psi and a tenacity of more than 20 grams per denier at room temperature, and an outer cover of elastomeric material.