Pak-Mor (early style) The Pak-Mor was designed and patented by the Superintendent of Refuse & Sanitation, San Antonio, Texas. The first models appeared in that city in about 1945. The bodies were built by a local boiler works which is today known as Pak-Mor manufacturing. The early Pak-Mor had a winch turning an endless roller chain which powered the packer plate. These were simple and economical bodies, and offered high compaction density for their day. As the photo shows, ejection dumping was a Pak-Mor feature long before most of the big three rear loader manufacturers offered this convenience. 8/5/04 © 2004 Eric Voytko All Rights Reserved Photos from factory brochures/advertisements except as noted Logos shown are the trademarks of respective manufacturers