Cylinder having a floating piston, swivel cap, and lubricated rod
US9856892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2014 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Dec 15, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32606
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An actuator has: a rod having a socket portion at one distal end of the rod; and a swivel cap including: a base portion having an inner surface and an outer surface having an origin of the radius at the center of the plane that defines the outer surface; a raised domed portion disposed on the inner surface of the base portion and mounted in the socket portion of the rod; a raised region located on at least one of the raised domed portion or the socket portion; wherein the swivel cap tilts relative to the rod in response to angular misalignment with a load to a tilt angle; a housing having an interior elongated hole wherein the rod is dimensioned to fit in the elongated hole; a piston dimensioned to fit in and move along the elongated hole while connected to the rod; and mating structure located on at least one of the piston and rod, the mating structure configured to allow the rod to attach to the piston in a manner to create clearance between the rod and the piston to allow the rod and piston to move with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.