Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.2485/MUM/2010 A
(19) INDIA
(22) Date of filing of Application :07/09/2010 (43) Publication Date : 21/06/2013
(54) Title of the invention : ELECTRONIC HORN•
(51) International classification
(31) Priority Document No :NA
(32) Priority Date :NA
(33) Name of priority country :NA
:G10k9/00;
g10k9/13
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
:NA
(71)Name of Applicant :
1)MINDA INDUSTRIES LIMITED
Address of Applicant :Village Nawada Fatehpur P.O.
Sikanderpur Badda Manesar Distt. Gurgaon Haryana 122004
India Maharashtra India
(72)Name of Inventor :
1)Uday Vishwasrao Wasule
2)Nandulal Kushabhau Gavali
3)Vishal Panjabrao Daigavane
(57) Abstract :
The present invention relates to an electronic horn provided in an automotive vehicle which is responsive to variations in the horn
supply voltage for maintaining a constant input power to the horn. The electronic horn comprises an electromagnetic coil
connected to said voltage source via an electrical path. A switching circuit located in the electrical path is operable to allow flow
of electric current through the electromagnetic coil for a time period TON and for disallowing flow of current through the
electromagnetic coil for a time period TOFF, so as to cause excitation of the electromagnetic coil and thereby causing the
ferromagnetic plunger to exhibit reciprocating motion. The electronic horn also comprises of a voltage sensing arm being
connected to the voltage source such that the same is parallel to the electrical path, a temperature sensor and a microcontroller
storing a user inputted.......
No. of Pages : 24 No. of Claims : 20
The Patent Office Journal 21/06/2013 13510