Rzt Zelpy 5260 (Proprietary) Limited

South Africa

Back to Profile
1-1 of 1 for Rzt Zelpy 5260 (Proprietary) Limited Sort by
Query
Aggregations
IPC Class
E21D 15/48 - Chocks or the like 1
E21D 15/51 - Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves 1
E21D 21/00 - Anchoring-bolts for roof, floor, or shaft-lining protection 1
Found results for  patents

1.

A PRESSURE INDICATING DEVICE

      
Application Number ZA2010000074
Publication Number 2011/063433
Status In Force
Filing Date 2010-11-23
Publication Date 2011-05-26
Owner RZT ZELPY 5260 (PROPRIETARY) LIMITED (South Africa)
Inventor Tyrer, David, Charles

Abstract

The invention provides an indicator mechanism for a hydraulic valve (14) of a hydraulically inflated device (12) which includes a body (41) which has a bore (44) through which a fluid flows from a source to an interior (34) of the device (12) and which is configured to deform, when a fluid pressure from the source reaches a predetermined level.

IPC Classes  ?

  • E21D 15/48 - Chocks or the like
  • E21D 15/51 - Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
  • E21D 21/00 - Anchoring-bolts for roof, floor, or shaft-lining protection