| (19) |
 |
|
(11) |
EP 2 042 730 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
03.11.2010 Bulletin 2010/44 |
| (43) |
Date of publication A2: |
|
01.04.2009 Bulletin 2009/14 |
| (22) |
Date of filing: 23.09.2008 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL
PT RO SE SI SK TR |
|
Designated Extension States: |
|
AL BA MK RS |
| (30) |
Priority: |
28.09.2007 IT VI20070261
|
| (71) |
Applicant: Revelin Evaristo & Figli SNC |
|
36033 Isola Vicentina (VI) (IT) |
|
| (72) |
Inventor: |
|
- Revelin, Diego
36033 Isola Vicentina (VI) (IT)
|
| (74) |
Representative: Bonini, Ercole |
|
Studio Bonini Srl
Corso Fogazzaro, 8
36100 Vicenza
36100 Vicenza (IT) |
|
| |
|
| (54) |
Improved delivery compensation unit. |
(57) The invention is a delivery compensation unit for plaster sprayers comprising a frame
(3) that supports a tank (4) containing the plaster (I) to be sprayed; a pumping unit
(6) for conveying the plaster (I) through suction from the tank (4) to a suction chamber
(6a) and through compression from the suction chamber (6a) to a compression chamber
(6b); an outlet pipe (7) connecting the compression chamber (6b) to a spray gun; ball
valve means (13a, 13b) for placing the tank (4) in communication with the suction
chamber (6a) and the suction chamber (6a) with the compression chamber (6b). A cylindrical
container (19) closed at one end by a bottom (20) defines a compensation chamber (22)
having an inlet mouth (21) connected to the chamber provided with a sliding plunger
(23) and elastic mechanical means (24) interposed between the plunger (22) and the
bottom (20).