Patent ID: 11959810
Assignee: WIKA ALEXANDER WIEGAND SE & CO. KG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 23:
24. A protective tube for sealed introduction into a process space having a flow directed in a direction, the protective tube comprising:
a hollow body;
a closed lower end;
an upper end with an opening configured to introduce a temperature sensor; and
a contour formed at the upper end, the contour configured for sealing to a process space,
wherein the hollow body has an outer contour and an inner surface,
wherein the inner surface comprises a cylindrical shape,
wherein at least one section of the outer contour tapers toward the closed lower end,
wherein at least one helix structure is provided, the helix structure being arranged on the outer contour at least in sections or arranged in the outer contour at least in sections, and
wherein the protective tube is configured with at least one of;
a pitch of the at least one helix structure increasing toward an upper end of the hollow body;
a material thickness of the at least one helix structure decreasing toward the upper end of the hollow body; or
a height of the at least one helix structure increasing by half of a tapering of the hollow body toward the lower end of the hollow body.