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US 11,680,828 B2Granted
Sealed linear encoder and sealing lip for a sealed linear encoder
AssigneeRenishaw PLC
InventorFinlay Jonathan Evans
Life of this patent
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Abstract
A sealed linear encoder apparatus provides a measure of relative displacement of two relatively movable members. The sealed linear encoder apparatus includes at least one elongate sealing lip wherein at least a sealing portion of the elongate sealing lip is held in tension along its length.
Claims14
A sealed linear encoder apparatus for providing a measure of relative displacement of two relatively movable members, the sealed linear encoder apparatus comprising:
- a readhead assembly;
- a protective housing;
- and
- at least one elongate sealing lip, wherein:
- at least a sealing portion of the at least one elongate sealing lip is held in tension along a length of the sealing portion;
- the at least one elongate sealing lip has a natural curvature so as to be not straight;
- and
- the at least one elongate sealing lip is deformed away from the natural curvature into a less curved configuration by the protective housing so as to hold at least the sealing portion in tension.
5 more elements
An elongate sealing lip for a sealed linear encoder apparatus, the apparatus comprising:
- a readhead assembly;
- and
- a protective housing, wherein
- the elongate sealing lip has a natural curvature so as to be not straight and such that, when a seal root portion of the elongate sealing lip is pulled from the natural curvature into a straight configuration, at least a sealing portion of the elongate sealing lip is held in tension along a length of the sealing portion.
1 more element
Dependencies are inferred from the claim text.