公开(公告)号：US20050169735A1

公开(公告)日：2005-08-04

申请号：US10741826

申请日：2003-12-19

Applicant: Bradley Pelsue

Inventor： Bradley Pelsue

IPC: A62B1/04 ,  A62B1/06 ,  B60P1/00 ,  B60P1/54 ,  B60P3/055 ,  B62B1/00 ,  B66C23/48

CPC classification number: A62B1/04 ,  A62B35/0068 ,  B60P1/5471 ,  B60P3/055 ,  B66C23/48

Abstract: A confined space entry device has modularized components which allow the device to be readily reconfigured. In particular, the extension arm of the device is removably secured to one leg of an elbow, while a post or mast is removably secured to the other end of the elbow. The other end of the mast is removably secured to a base which supports the confined space entry device. In one version of the invention, the device includes tubular members made of a polymer composite material. In another version of the invention, the elbow is asymmetric about a central axis and is formed of cast aluminum. The device can include sets of different-length elongated members which can be interchanged with elongated members secured within the device. In yet another version of the invention, the device incorporates a safety line connected to a lower end of the davit assembly or member and extending to an upper end of the davit assembly or member. The safety line should have a tensile strength equal or greater than to the dynamic rating of the post; should the member break above the lower end, the safety line would arrest the fall of a worker or person secured to the confined space device.

Abstract translation: 限制空间进入装置具有模块化的部件，其允许容易地重新配置装置。 特别地，装置的延伸臂可移除地固定到肘部的一个腿部，而柱或桅杆可移除地固定到肘部的另一端。 桅杆的另一端可拆卸地固定到支撑密闭空间进入装置的基座上。 在本发明的一个版本中，该装置包括由聚合物复合材料制成的管状构件。 在本发明的另一种形式中，肘部关于中心轴线是不对称的并且由铸铝形成。 该装置可以包括一组不同长度的细长构件，其可以与固定在装置内的细长构件互换。 在本发明的另一个版本中，该装置包括连接到吊架组件或构件的下端并延伸到吊架组件或构件的上端的安全线。 安全线应具有等于或大于柱的动态额定值的拉伸强度; 如果该成员突破下端，安全线将阻止受保护的密闭空间装置的工人或人员的坠落。