| 发明名称 |
ADJUSTABLE FAIL-SAFE ROTARY SPRING OPERATOR WITH A RETAINING BAND |
| 摘要 |
A rotary spring-return actuator operator is provided with a multi-slot shaft and a clock type spring retained by a retaining band which encircles the spring in such a manner as to insure that the potential energy within the spring is safely contained during all operations requiring disassembly of the actuator assembly, and wherein the retaining band facilitates the in-field reversal of the spring direction or the adjustment of the spring preload by securing the spring to one or more of the slots on the multi-slot shaft. |
| 申请公布号 |
US2016161016(A1) |
申请公布日期 |
2016.06.09 |
| 申请号 |
US201514873907 |
申请日期 |
2015.10.02 |
| 申请人 |
CONTROLS INTERNATIONAL, INC. |
发明人 |
Underwood, Jr. Frederick Rand;Underwood, III Frederick Rand;Price Kenneth Earl |
| 分类号 |
F16K31/12;F16F1/10 |
主分类号 |
F16K31/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method to safely reverse the direction of a spring-return operator comprising a coil spring retained by a band, wherein the spring is disposed in a spring housing, the method comprising the steps of:
releasing tension on the spring; removing the spring from the housing; rotating the spring 180 degrees; and inserting the rotated spring into the spring housing. |
| 地址 |
Dallas TX US |
