Abstract: A method of exchanging documents among multiple businesses relating to common customers, including publishing documents relating to a first customer of a first business in a secure medium, determining whether the first customer is the same person as a second customer of a second business, and if the first customer is the same person as the second customer, granting access to the second business to the published documents.

Abstract: A method of exchanging documents among multiple businesses relating to common customers, including publishing documents relating to a first customer of a first business in a secure medium, determining whether the first customer is the same person as a second customer of a second business, and if the first customer is the same person as the second customer, granting access to the second business to the published documents.

Abstract: A method of delivering documents electronically, including prompting a first user at a first business to send a reference to a document to a second user at a second business over a secure network, verifying that the second business has rights to the document, and granting all users at the second business access to the document if the second business has rights to the document. In another aspect, a method of creating notes, including verifying that a user is a practitioner, prompting the practitioner to enter text, prompting the practitioner to submit the text as a portion of a permanent record, and if the practitioner submits the text, saving the text as a portion of a permanent record. In another aspect, a method of segregating data within a file into distinct patient documents, including identifying the beginning of each document by searching for one or more predetermined phrases, and storing each document.

Abstract: A heat exchange element for a rotary regenerative heat exchanger has corrugations of a wave-form conformation which include portions, extending between 10% and 50% of the wave length, which are parallel to the direction of flow of medium through the pack. Comparative data are given showing better efficiency in terms of heat-exchange effectiveness versus pressure loss than for apparently analogous prior art elements.

Abstract: A stationary-mass rotary regenerative air preheater uses a single regenerative mass for the separately controllable heating of different streams of air. This is achieved by providing at each axial end face of the mass rotating cowls divided into rotationally symmetrical hoods each of which is sub-divided into sector-shaped compartments which have the same radial extent as the mass. A given compartment of one hood on one end face is angularly of the same extent as the corresponding compartment of the other hood on that end face. The compartments are brought to coaxial connecting ducts at the neck of each cowl. Separation of media flows even under temperature or pressure differences is assured by sealing strips at each of the radially extending walls of each hood; these are automatically operated, and those on internal (sub-dividing) walls may be operatively linked to those on external walls.