WERN INTER AB
MECHANICAL HVAC CONSULTING ENGINEERING. DESIGN & INSPECTION: Water, Cooling, Piping, Heating, Ventilation, Air Conditioning, Automatic Control. Slide Rule Engineering Design
Decimal Point Slide Rule Calculator 1633 & 1638.
P-Phone Control AB
PeriProx Control Solutions.
WERN Inter AB started 1963 in Sweden as the HVAC consulting engineering company Wern
Inter VVS AB. It was founded by Carl R. Wern, a Registered Professional Mechanical Engineer in
the state of Michigan, USA, Carl´s brother George joined in 1964 the company. Its present name
was registered 1984.
The company has been engaged in various engineering design projects such as
- Apartment, Hotel, Shopping, Office and Recreational buildings etc
- Swedish Embassy buildings in Europe, Africa, Asia and North America
- Slide rule design awarded with gold medal to the Wern brothers
- Slide rule calculator design and production for various clients
- Touch control for lighting installations patented in 1972
- Patent licence sold 1976 to Ericsson for picture telephony on an ordinary subscriber line.
P-Phone Control AB (PPC) was founded 1992 by Carl together with his brother George in a
joint venture agreement with their brother Lars who is a registered European Patent Attorney.
PPC is specialized in proximity sensing R&D where a sensor device was patented 1972 by
the Wern brothers in a digital version following analog versions inspired by Nikola Tesla.
A first patent of interests to mention was registered 1928 in the USA by the Soviet inventor
Léon Theremin. He developed an electronic musical instrument controlled without physical contact.
The Wern brothers proximity sensor was first used in lighting installations for touch control and
thereafter in art museums as invisible shields preventing exhibited objects from being touched.
Today called PeriProx, the technology has been shown applicable for providing enhanced security
in 2000 to a Saab car and in 2009 to a Scania truck.
Slide Rule Reference
Oughtred Society, Roseville, California. USA. www.oughtred.org
International Slide Rule Musum, Denver Colorado, USA. www.sliderulemuseum.com
National Museum of American History. http://americanhistory.si.edu/collections/object-groups/slide-rules
System Wern Slide Rule IWA 1633 & 1638. Gold medal award at the International Exhibition in Brussels 1966.
1966.IWA1638 DYNAMIC ART IWA1638 2016.IWA1638
Design layout made by WERN INTER AB for some of our Clients.
HVAC Mechanical Prototype Calculators
Water - Heating - Ventilation. Prototypes to be shown later.
1946. Hermods Correspondence Institute, Malmö. Mathematics, Building Design Construction, etc
1949. Swedish HVAC Engineering Degree, Stockholm Technical Institute, Sweden.
1983. Registered Professional Engineer in Minnesota, USA
Copyright Carl R. Wern