Valve handwheel and a valve arrangement comprising such a valve handwheel
AssigneeImi Hydronic Engineering International SA
InventorLeif Marstorp
Life of this patent
Estimating the term…
Abstract
The invention relates to a valve handwheel, comprising a first handwheel part comprising a first position-indicating window, a second handwheel part comprising a second position-indicating window, and a geometrical centre axis extending through the first and second handwheel parts. The first handwheel part is rotatably connected to the second handwheel part. When a user turns the first handwheel part around said geometrical centre axis, the first position-indicating window rotates with the first handwheel part while the second position-indicating window remains stationary with the second handwheel part. The invention also relates to a valve arrangement comprising such a valve handwheel.
Claims11
A valve handwheel, comprising:
- a first handwheel part comprising a first position-indicating window,
- a second handwheel part comprising a second position-indicating window,
- a geometrical centre axis (X) extending through the first and second handwheel parts,
- wherein the first handwheel part is rotatably connected to the second handwheel part,
- wherein the first handwheel part comprises a grip portion for enabling a user to turn the first handwheel part around said geometrical centre axis (X) while the second handwheel part remains stationary relative to said geometrical centre axis (X), such that the first position-indicating window rotates with the first handwheel part while the second position-indicating window remains stationary with the second handwheel part,
- a first indicator wheel provided with positional symbols, such as numbers, which are sequentially displayable through the first position-indicating window,
- a first engagement element which is stationary relative to the second handwheel part,
- wherein the first indicator wheel is aligned with the first position indicating-window and is connected to the first handwheel part so as to follow the movements of the first handwheel part around said geometrical centre axis (X),
- wherein when the first engagement element becomes engaged with and is passed by the first indicator wheel, then the first indicator wheel is caused to move clockwise or anticlockwise around its own axis so as to display a subsequent symbol through the first position-indicating window.
Dependencies are inferred from the claim text.