Valve construction for brass wind instrument

Details Valve construction for brass wind instrument Valve construction for brass wind instrument

1978-07-11

1980-07-01

Franklin, Lawrence R.

Music

Instruments

Wind

G10D 904

Patent

active

042100569

ABSTRACT:
An improved piston valve construction for valved wind instruments such as trumpets, bugles, and the like is provided having portions of varying diameter which may be employed in conventional piston valve casings. Such improved valve construction comprises a ported lower piston portion of non-metallic composition selected from certain thermoplastic and thermosetting polymeric compositions. In one aspect a non-lubricated piston valve assembly for valved wind instruments is provided. Preferred polymeric compositions include lubrous, hydrophobic, non-swelling polymers, especially high density polyethylene, polypropylene, impact-resistant styrene-butadiene copolymers, acetal resins, and the like.

REFERENCES:
patent: 2665606 (1954-01-01), Wohlrab
patent: 3835748 (1974-09-01), Olson
patent: 4095504 (1978-06-01), Hirsbrunner

Affiliated with

Also associated with

Rating

Valve construction for brass wind instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Valve construction for brass wind instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve construction for brass wind instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-294604