Hammer drill with plate
Номер патента: DE4401915C1
Опубликовано: 18-05-1995
Автор(ы): Hartmut Dipl Ing Precht, Heinrich Dipl Ing Kersten
Принадлежит: Gebr Heller Dinklage 49413 Dinklage De GmbH, Heller Dinklage Geb GmbH
Опубликовано: 18-05-1995
Автор(ы): Hartmut Dipl Ing Precht, Heinrich Dipl Ing Kersten
Принадлежит: Gebr Heller Dinklage 49413 Dinklage De GmbH, Heller Dinklage Geb GmbH
Реферат: Connected to a primary extension bar (16) is at least one secondary delivery spiral (18). The outer dia. of the delivery spiral is greater than that of the extension bar, but at most equal to that of the drill plate (10). In the connection to at least the secondary delivery spiral connecting to the primary extension bar, a secondary extension bar (20) is arranged. The outer dia. of at least one of the delivery spirals (14,18) is the same as that of the drill plate. The drill plate and the primary delivery spiral (14) are releasably connected to one another in a dividing plane.
Bit assembly for a hammering drill
Номер патента: WO2004046496A1. Автор: Teijo Hulkkonen,Hannu Paasonen. Владелец: Hannu Paasonen. Дата публикации: 2004-06-03.