Inventor
ZASOWSKI PETER
US7 patents
Patents
7 patentsUS10180023B2Jan 15, 2019
Apparatus and method for control of spring force in a door closer or operator
YALE SECURITY INC26 citations93
US9695620B2Jul 4, 2017
Apparatus and method for rotating tube adjustment and visually indicating spring force in a door operator or closer
YALE SECURITY INC32 citations93
US10253540B2Apr 9, 2019
Apparatus for connecting door closer or operator to swing door
YALE SECURITY INC17 citations91
US9514583B2Dec 6, 2016
Controller for a door operator
YALE SECURITY INC31 citations90
US10030425B2Jul 24, 2018
Apparatus for providing constant torque output from a door closer or operator
YALE SECURITY INC17 citations84
US10024094B2Jul 17, 2018
Apparatus for connecting door closer or operator to swing door
YALE SECURITY INC15 citations81
US10372106B2Aug 6, 2019
Methods and apparatus for increasing the range of digital inputs and outputs on a door operator or closer
YALE SECURITY INC1 citations61