Roll bladder support structure
US5499780A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 1994 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | Sep 2, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H75/2437
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A removable bladder assembly for insertion into the core of a roll support sleeve having roll gripping lugs radially displaced by the bladder assembly includes an outer flexible bladder tube and an inner rigid tube for supporting the outer tube. A coupling member is secured to the tubes at each of the tube ends to seal and clamp the tubes together. The member includes a nut axially threaded to the inner tube bore and having an outwardly extending flange. A T-shaped cap has a section over the outer tube and a section over the nut flange. The cap has a flange depending from between the sections and located between the nut flange and the ends of the two tubes. An O-ring and washer like ring are in a rigid tube recess between the rigid tube end and the cap flange. An annular wedge shaped recess is in the cap section overlying the outer tube radially aligned with the O-ring. Axially compression of the O-ring by the nut flange radially expands the O-ring deforming the outer tube into the recess to effect a clamping seal between the outer and inner tubes. A plug is secured in each end of the sleeve and include a pilot pin for receiving the nut bore. A journal extends from each plug beyond…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.