Title:
HYDRAULICALLY LIFTED SECTIONAL GARAGE DOOR
Document Type and Number:
WIPO Patent Application WO/2020/089833
Kind Code:
A8
Abstract:
A hydraulically lifted sectional garage door comprising a lifting assembly (GP), which includes a hydraulic cylinder (CI) and a known mechanical mechanism to control the garage door, the box (CAS) including a movable portion (CAT), which is wider than a fixed inner portion (CAF) and telescopically slides on the outside of the fixed inner portion (CAF), so as to obtain standard boxes (CAS) produced in predetermined standard length sizes, which are suited to accommodate respective hydraulic cylinders (CI) with a completely extended rod (STE) and with the movable portion (CAT) of the box (CAS) completely retracted in the fixed portion (CAF), the lifting assembly (GP) being operated by means of an electric-hydraulic motorization, which is totally independent in operating the hydraulic cylinder (CI) and comprises a tank, a motor and a valve assembly, the electric-hydraulic motorization being housed inside the fixed inner portion (CAF).
Inventors:
PIOGGIA MAXIM (IT)
Application Number:
PCT/IB2019/059358
Publication Date:
February 25, 2021
Filing Date:
October 31, 2019
Export Citation:
Assignee:
PI EM SRLS (IT)
International Classes:
E05F15/59
Attorney, Agent or Firm:
FARALDI, Marco et al. (IT)
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