The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 1980
Filed:
Jul. 05, 1978
Applicant:
Inventor:
Patrick Bommart, Rueil Malmaison, FR;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; B23K / ;
U.S. Cl.
CPC ...
249 86 ; 249 91 ; 249205 ;
Abstract
A mould for use in a metallothermic welding process of at least two metal items together comprises at least two parts for arrangement around butts of each of the metal items to define a pouring cavity which is adapted to receive hot welding fluid. At least one of the faces of the mould, which in use will contact either a part of one of the items to be welded or another portion of the mould, defines a projection which presents sloping side towards the exterior of the pouring cavity. A strip of a compressible material which is little affected by heat is fitted on the projection in order to abut said part of one of the items or the other portion of the mould.