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1. 发明授权

US4347024A Tension indicating and lock cone washer 失效
标题翻译：张力指示和锁定锥形垫圈
公开(公告)号：US4347024A
公开(公告)日：1982-08-31
申请号：US180289
申请日：1980-08-22
申请人： Chester P. Coldren
发明人： Chester P. Coldren
IPC分类号： F16B31/02 , F16B39/24 , F16B43/00
CPC分类号： F16B39/24 , F16B31/028 , F16B43/00
摘要： A tension indicating and cone lock washer (10) for use in connection with a headed fastener (B) and a bearing surface (S) is provided. The washer has a generally annular body (12) with an aperture (14) therethrough. The body is of a generally frustoconical cross-section. A generally radially extending through slot (22) is provided and the remaining material aligned with the slots define at least one web (24 or 26). The washer is intended to crack along the webs at a first compression force and to act as a lock washer and not completely flatten until a second compression force, greater than the first compression force, is applied thereto.
摘要翻译：提供了用于与头部紧固件（B）和支承表面（S）连接的张力指示和锥形锁定垫圈（10）。垫圈具有大致环形的主体（12），其具有穿过其中的孔（14）。身体是一个大致截头圆锥形的横截面。提供通常径向延伸的通孔（22），并且与狭槽对准的剩余材料限定至少一个腹板（24或26）。垫圈旨在以第一压缩力沿着腹板裂开，并且用作锁紧垫圈并且不完全变平，直到施加大于第一压缩力的第二压缩力。

2. 发明授权

US4000681A Mine bolt tension indicator 失效
标题翻译：矿用螺栓张力指示器
公开(公告)号：US4000681A
公开(公告)日：1977-01-04
申请号：US576416
申请日：1975-05-12
申请人： Chester P. Coldren
发明人： Chester P. Coldren
IPC分类号： E21D20/00 , E21D21/02 , F16B31/02 , G01L5/00
CPC分类号： F16B31/028 , E21D21/02
摘要： A mechanical device for visually indicating the tension in a monitored bolt or the like. The device will visually indicate if the monitored bolt is subject to greater than a predetermined maximum tension or is subject to less than a predetermined minimum acceptable tension. The device will also give visual indication, generally proportional to the tension in the monitored bolt, when the tension in the monitored bolt is at less than the predetermined maximum but more than the predetermined acceptable minimum. The device includes a spring washer, preferably a helical washer, which is inserted inbetween the head of the bolt and the surface or backing plate against which the head of the bolt will bear for substantially resilient compression therebetween. The washer is selected with a spring constant such that the washer will be substantially flattened between the bolt head and the plate only upon the application of a tension to the bolt exceeding the predetermined maximum. The washer includes a pivot member, preferably a pivot pin, which will move axially away from the plate as the washer expands in response to less than predetermined maximum tension in the bolt. The pivot member will be axially spaced a known distance from the plate when the tension in the bolt is equal to the predetermined acceptable minimum tension. An elongated indicating member, or flag, is pivotally mounted at one end thereof to the pivot member.
摘要翻译：用于在监视的螺栓等中可视地指示张力的机械装置。该装置将在视觉上指示所监视的螺栓是否经受大于预定的最大张力，或者受到小于预定的最小可接受张力的影响。当监测的螺栓的张力小于预定的最大值但大于预定的可接受的最小值时，该装置还将给出视觉指示，通常与被监视的螺栓中的张力成比例。该装置包括弹簧垫圈，优选地是螺旋垫圈，该弹簧垫圈插入在螺栓的头部和螺栓的头部将承受的表面或背板之间，以在它们之间实现基本弹性的压缩。以弹簧常数选择垫圈，使得只有在对螺栓施加超过预定最大值的张力时，垫圈将基本上平坦化在螺栓头和板之间。垫圈包括枢转构件，优选地枢转销，当垫圈响应于螺栓中预定的最大张力而膨胀时，该枢转构件将轴向移动离开板。当螺栓中的张力等于预定的可接受的最小张力时，枢转构件将与板的轴向间隔已知距离。细长的指示构件或标记在其一端枢转地安装到枢转构件。

3. 发明授权

US4047463A Tension indicator 失效
标题翻译：张力指示器
公开(公告)号：US4047463A
公开(公告)日：1977-09-13
申请号：US708446
申请日：1976-07-23
申请人： Chester P. Coldren
发明人： Chester P. Coldren
IPC分类号： E21D21/02 , F16B31/02
CPC分类号： E21D21/02 , F16B31/028 , Y10S116/34 , Y10S411/96
摘要： A one-piece mechanical device for visually indicating the tension in a monitored bolt, such as a mine bolt or the like, is provided. The device comprises a specially configured spring washer, preferably a helical washer, which is inserted in between the head of the monitored bolt and the surface or backing plate against which the head of the bolt will bear for substantially resilient compression therebetween. The washer is selected with a spring constant such that substantial axial compression of the washer will occur only upon the application of a compressive force in the range of tensile forces to monitored in the monitored bolt. Preferably, the washer will only completely flatten between the bolt head and the bearing plate when the compressive force applied thereto exceeds the predetermined maximum tensile force in the bolt. The two adjacent free ends of the washer carry indicia on the outer wall thereof, such as etched or raised lines, easily seen stripes or the like, which will be axially aligned when the tensile force in the bolt is within predetermined limits. The outer circumferential wall of the bolt is of a substantially constant axial length, greater than the axial length of the remainder of the washer, so that the outer circumference of the washer is always the contact surface with both the bolt head and the bearing surface.
摘要翻译：提供了用于在监视的螺栓（例如矿井螺栓等）中可视地指示张力的单件机械装置。该装置包括特别配置的弹簧垫圈，优选地是螺旋垫圈，其被插入在被监视的螺栓的头部和表面或背板之间，螺栓的头部将与该表面或背衬板头部保持基本上弹性的压缩。选择具有弹簧常数的垫圈，使得仅当在被监测的螺栓中监测的拉伸力范围内施加压缩力时才会发生垫圈的实质轴向压缩。优选地，当施加到其上的压缩力超过螺栓中的预定最大拉力时，垫圈仅将完全变平在螺栓头和支承板之间。垫圈的两个相邻的自由端在其外壁上带有标记，例如蚀刻或凸起的线条，容易看到的条纹等，当螺栓中的拉伸力处于预定限度内时，其将被轴向对准。螺栓的外周壁的轴向长度基本上恒定，大于垫圈的其余部分的轴向长度，使得垫圈的外周总是与螺栓头和支承表面两者的接触表面。

4. 外观设计

USD245067S Tamper resistant nut 失效
公开(公告)号：USD245067S
公开(公告)日：1977-07-19
申请号：US588280
申请日：1975-06-19
申请人： Chester P. Coldren
设计人： Chester P. Coldren

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