Yes, Ellis was quite the innovator. He played a four-valve trumpet which gave his playing an extra, and very interesting dimension.
His musical eccentricity seems to have acted as a barrier to getting the exposure and fame he deserved, because his big-band arrangments were absolutely superb. A very underrated musician imho.
I have a few of his LP's including 'Electric Bath' ( re-issued on CD ) , which is probably his most accessible album, the perfect blend of jazz and rock and still play it fairly regularly.
Cheers - Forster