IT1245481B - Process for manufacture of muffler pipes of automotive vehicles and pipe made with this process - Google Patents

Process for manufacture of muffler pipes of automotive vehicles and pipe made with this process

Info

Publication number
IT1245481B
IT1245481B ITTO910315A ITTO910315A IT1245481B IT 1245481 B IT1245481 B IT 1245481B IT TO910315 A ITTO910315 A IT TO910315A IT TO910315 A ITTO910315 A IT TO910315A IT 1245481 B IT1245481 B IT 1245481B
Authority
IT
Italy
Prior art keywords
manufacture
automotive vehicles
pipe made
muffler pipes
holes
Prior art date
Application number
ITTO910315A
Other languages
Italian (it)
Inventor
Ettore Coxe
Mario Coxe
Original Assignee
Coxe S R L Flli
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coxe S R L Flli filed Critical Coxe S R L Flli
Priority to ITTO910315A priority Critical patent/IT1245481B/en
Publication of ITTO910315A0 publication Critical patent/ITTO910315A0/en
Publication of ITTO910315A1 publication Critical patent/ITTO910315A1/en
Application granted granted Critical
Publication of IT1245481B publication Critical patent/IT1245481B/en

Links

Landscapes

  • Exhaust Silencers (AREA)

Abstract

The process for manufacture of muffler pipes for automotive vehicles consists of drilling a continuous metal strip with groups of holes spaced at regular intervals with simultaneous punching with a ragged line on the lateral edges, cutting the strips into separate blanks to obtain flat plates and forming the latter in cylindrical shape. The pipe obtained with the aforementioned process consists of a group of holes 8 arranged in the median zone and a series of projections 14, 20, 24 and recesses 12, 22, 26 coupled to each other. <IMAGE>
ITTO910315A 1991-04-30 1991-04-30 Process for manufacture of muffler pipes of automotive vehicles and pipe made with this process IT1245481B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITTO910315A IT1245481B (en) 1991-04-30 1991-04-30 Process for manufacture of muffler pipes of automotive vehicles and pipe made with this process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO910315A IT1245481B (en) 1991-04-30 1991-04-30 Process for manufacture of muffler pipes of automotive vehicles and pipe made with this process

Publications (3)

Publication Number Publication Date
ITTO910315A0 ITTO910315A0 (en) 1991-04-30
ITTO910315A1 ITTO910315A1 (en) 1992-10-30
IT1245481B true IT1245481B (en) 1994-09-20

Family

ID=11409301

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910315A IT1245481B (en) 1991-04-30 1991-04-30 Process for manufacture of muffler pipes of automotive vehicles and pipe made with this process

Country Status (1)

Country Link
IT (1) IT1245481B (en)

Also Published As

Publication number Publication date
ITTO910315A0 (en) 1991-04-30
ITTO910315A1 (en) 1992-10-30

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950427