High density dual helical gear

Details High density dual helical gear High density dual helical gear

2007-08-23

2010-12-21

La Villa, Michael (Department: 1784)

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

C428S601000, C074S640000

Reexamination Certificate

active

07854995

ABSTRACT:
The present invention relates to a low cost technique for manufacturing dual helical gears, such as herringbone gears, from powder metals. The dual helical gears made by this technique are of high density (greater than 92% of theoretical density) and offer superior strength. The present invention more specifically discloses a forged metal herringbone gear which is comprised of a body and a plurality of teeth wherein the metal has a density of greater than 92% of theoretical and wherein the grain in the teeth is one range higher on the ASTM E 112 grain size chart than the grain in the body of the gear.

REFERENCES:
patent: 4680844 (1987-07-01), Rupp
patent: 6440357 (2002-08-01), Hinzmann
patent: 2004/0031152 (2004-02-01), Jinkins et al.

Affiliated with

Also associated with

Rating

High density dual helical gear does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High density dual helical gear, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High density dual helical gear will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4203428