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1. 发明授权

US4271933A Wheelchair brake attachment 失效
标题翻译：轮椅刹车附件
公开(公告)号：US4271933A
公开(公告)日：1981-06-09
申请号：US816396
申请日：1977-07-18
申请人： James C. Pearce , Richard L. Williams
发明人： James C. Pearce , Richard L. Williams
IPC分类号： B62B5/04 , B60T1/04
CPC分类号： A61G5/1018 , A61G5/101 , A61G5/1037 , A61G5/1008 , B62B5/0485
摘要： A wheelchair with two large rear wheels, two swiveling front wheels and an open front has handgrips located vertically above the two rear wheels. A connecting rod pivoted to a handle attached to each of the handgrips extends downward to a plunger slidably located within a sleeve removably connected to the frame. An adjustable arm extends from the plunger through a slot in the sleeve to a position proximate yet not contacting each of the rear wheels. When a lever on the handle and each handgrip are squeezed the lever pivots and forces the rod and plunger downward within the sleeve. The arm on the plunger contacts each wheel and brakes the wheelchair.
摘要翻译：具有两个大后轮的轮椅，两个旋转前轮和一个开放的前轮具有位于两个后轮上方的手柄。连接到连接到每个手柄的手柄的连杆向下延伸到可滑动地位于可移除地连接到框架的套筒内的柱塞。可调节臂从柱塞延伸穿过套筒中的狭槽至接近但不接触每个后轮的位置。当手柄和每个手柄上的杠杆被挤压时，杠杆枢转并迫使杆和柱塞在套筒内向下。柱塞上的手臂接触每个车轮并制动轮椅。

2. 发明授权

US4245929A Arctic multi-angle conical structure 失效
标题翻译：北极多角锥形结构
公开(公告)号：US4245929A
公开(公告)日：1981-01-20
申请号：US34085
申请日：1979-04-27
申请人： James C. Pearce , Paul M. Aagaard , Gordon E. Strickland
发明人： James C. Pearce , Paul M. Aagaard , Gordon E. Strickland
IPC分类号： E02B17/00
CPC分类号： E02B17/0021
摘要： An offshore structure which is able to withstand the ice forces imposed thereon by impinging ice sheets and other larger masses of ice wherein the structure has an upper conical portion coaxially positioned relative to a lower conical portion. The walls forming both the upper and lower portions are inclined at an angle to the horizontal to receive ice masses moving into contact with the structure. The angle of inclination from the horizontal of the upper portion is greater than the angle of inclination of the lower portion, and the cross-sectional diameter of the upper conical portion is no greater than that at the top of the lower conical portion.
摘要翻译：能够承受通过撞击冰盖和其他较大块冰的冰而施加的冰力的近海结构，其中该结构具有相对于下锥形部分同轴定位的上锥形部分。形成上部和下部两者的壁相对于水平面倾斜一定角度，以接收与结构接触的冰块。与上部的水平面的倾斜角度大于下部的倾斜角度，并且上部锥形部分的横截面直径不大于下部锥形部分顶部的截面直径。

3. 发明授权

US4239418A Arctic multi-angle conical structure having a discontinuous outer surface 失效
标题翻译：北极多角锥形结构具有不连续的外表面
公开(公告)号：US4239418A
公开(公告)日：1980-12-16
申请号：US34046
申请日：1979-04-27
申请人： James C. Pearce
发明人： James C. Pearce
IPC分类号： E02B17/00
CPC分类号： E02B17/0021
摘要： An offshore structure which is able to withstand the ice forces imposed thereon by impinging ice sheets and other larger masses of ice wherein the structure has an upper conical portion coaxially positioned relative to a lower conical portion. The walls forming both the upper and lower portions are inclined at an angle to the horizontal to receive ice masses moving into contact with the structure. The angle of inclination from the horizontal of the upper portion is greater than the angle of inclination of the lower portion, and the cross-sectional diameter of the upper conical portion is less than that at the top of the lower conical portion so that there exists a step-like section between the upper conical portion and the lower conical portion.
摘要翻译：能够承受通过撞击冰盖和其他较大块冰的冰而施加的冰力的近海结构，其中该结构具有相对于下锥形部分同轴定位的上锥形部分。形成上部和下部两者的壁相对于水平面倾斜一定角度，以接收与结构接触的冰块。与上部的水平面的倾斜角度大于下部的倾斜角度，并且上部锥形部分的截面直径小于下部锥形部分的顶部处的横截面直径，因此存在在上锥形部分和下圆锥形部分之间的阶梯状部分。

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