Spx Corporation

United Dominion Industries, Inc.

Drew J Van Norman

Benjamin G Hardy

Curt Hagen

Curtis L Hagen

A blade for mounting to a scraped surface heat exchanger drive shaft by pivotal connection with a mounting pin has a blade body having a first side and a second side, and a scraper edge and a hinge edge. At least one mounting hole extends through the blade body generally proximate at the hinge edge. An L-shaped locking track protrudes into the first set of the blade, having an entry track extending from the hinge edge and an intermediate track extending from the entry track to the mounting hole. An L-shaped locking track also protruding into the second side of the blade, has an entry track extending from the hinge edge of the blade and an intermediate track extending from the entry track to and past the mounting hole.

Mounting system and method for scraped surface heat exchanger blades

Attachment apparatus and method for interlocking attachment of a scraper blade with a drive shaft of a scraped surface heat exchanger includes a blade having dual attachment beams and a central locking member, and at least one pin having dual fingers each for interlocking with a respective attachment beam.

Scraper blade interlocking attachment apparatus and method

An improved pump and pumping method includes a circumferential positive displacement pump having two counter rotating rotors. A clearance gap is defined between the rotor shaft, and a body hub portion of the body that forms the chamber.

Pump rotor seal apparatus and method

A method and apparatus for removing or inserting a mutator shaft from a scraped surface heat exchanger assembly comprising a split shaft design to form a plurality of mutator shaft segments. Each shaft segment contains ends further connectable with one another and may be further retained via a drive pin assembly preferably comprising a plurality of drive pin mounting screws and a drive pin. The shaft segments and drive pin assembly may be further sealed to provide a sanitary working environment particularly suitable for use in the foodstuff industry.

Split mutator shaft

Scraper blade

Pump gearbox bearing retainers and drive shafts

A sealing method and apparatus is provided for sealing between a rotating shaft and a fixed housing such as found in scraped surface heat exchangers. The sealing apparatus and method includes a sealed cartridge where a gland and a trapped seal ring can be releaseably assembled so that in a fully assembled configuration the gland and the trapped seal ring rotate together and are rotationally connected by a ball trapped between an indentation in the gland and an indentation in the trapped seal ring.

Mechanical seal device and method for a scraped surface heat exchanger

Combined pump gear box bearing retainers and drive shafts

A gear pump having shafts mounted with rolling element bearings and having mechanical seals on the face of the gears provides improved &ldquo;clean-in-place&rdquo; ability. Preferably, washer-like seals are mounted on the face of the gears with a suitable adhesive and the cup-like seals are mounted in end housings. The end housings mate with a central housing enclosing the gears, to provide improved assembly.

Growing community of inventors

Whitewater, WI, United States of America

Drew J Van Norman