Invention Grant
- Patent Title: Reducing spring load prior to maintenance on an actuator
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Application No.: US15361427Application Date: 2016-11-27
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Publication No.: US10197045B2Publication Date: 2019-02-05
- Inventor: Kurt Douglas Regenbrecht
- Applicant: Natural Gas Solutions North America, LLC
- Applicant Address: US TX Houston
- Assignee: Natural Gas Solutions North America, LLC
- Current Assignee: Natural Gas Solutions North America, LLC
- Current Assignee Address: US TX Houston
- Agency: Paul Frank + Collins P.C.
- Main IPC: F03G1/06
- IPC: F03G1/06

Abstract:
A safety device that is useful to release load on a spring found in an actuator. In one embodiment, the actuator can have a housing comprising a pair of housing members and a fastening device coupling the pair of housing members to one another. The embodiment can also have an output shaft extending longitudinally in the housing, the output shaft having an end configured to couple with a process device. The embodiment may also have a spring coupled with the output shaft. The embodiment can further have a safety device coupled to the spring and configured to operate to reduce loading of the spring from a first load to a second load. In one example, the safety device is in position to prevent access to the fastening device at the first load and to allow access to the fastening device at the second load so that the pair of housing members can separate to allow access to the spring in the housing.
Public/Granted literature
- US20180149140A1 REDUCING SPRING LOAD PRIOR TO MAINTENANCE ON AN ACTUATOR Public/Granted day:2018-05-31
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