F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 23/00 (2006.01) B21K 1/46 (2006.01)
Patent
CA 2113085
A screw head is provided with ribs (26) on some of the driver engageable surfaces. The rib (26) is slanted outwardly from the screw axis by a small angle A between 1° and 10°. A punch (150) for making a screw head with ribs (26) on some of the driver surfaces includes a slanted groove (168) for providing a rib (26) which is slanted from the screw axis by a small angle A between 1° and 10°.
Tête de vis munie de nervures (26) sur certaines des surfaces dans lesquelles s'engage le tournevis. La nervure (26) est inclinée vers l'extérieur à partir de l'axe de la vis selon un petit angle A de 1 à 10 degrés. Un poinçon (150) servant à fabriquer une tête de vis munie de nervures (26) sur certaines des surfaces recevant le tournevis comprend une rainure inclinée (168) pour obtenir une nervure (26) qui est inclinée à partir de l'axe de la vis selon un petit angle A de 1 à 10 degrés.
Gowling Lafleur Henderson Llp
Phillips Screw Company
LandOfFree
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