Patent · US Active

Drive shaft universal joint assembly with radial elliptical projections

US8342970B2 · kind B2 · utility

15Cited by

23References

10Claims

0Family size

Assignee

Precision Energy Services, Inc. · US

Inventors

Gregory Richard Altimas · Nisku, CA
Rishi Gurjar · Edmonton, CA

Key dates

Filing date	Jan 31, 2011
Grant date	Jan 1, 2013
Priority date	—
Expiry date	Feb 2, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D3/185
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A driveshaft assembly includes a driveshaft with a pair of universal joints disposed at each end of the driveshaft. Each of the universal joints provides torque transfer from the driveshaft to an adapter disposed to driveshaft using a plurality of elliptical projections that mate with interior grooves of the adapter. Stress concentration on the projections may be reduced in some embodiments by providing a variable radius fillet around each of the projections at the intersection of the projection with the driveshaft.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.