Patent EP0222258A2 successfully refreshed from Google Patents.
EP0222258A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Device for checking delivery of fluid or semifluid products
Assignee: Sillem 'italiana Lavorazione Legno E Metalli SpA Soc
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Filing: 1986-10-29
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Granted: —
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Expires: 2006-10-29
Abstract
Abstract The device checks whether a spray apparatus (1) for fluid or semifluid products, for example abrasive pastes, paints or lubricants, emits or does not emit product spray. The check is made by a radiation beam (17, 18, 14A, 14B) disposed to intersect the jet. To prevent any soiling by sprayed product being able to falsify the check and thus impair the device, pneumatic means are provided for preventing such soiling.
Inventors
- 👤 Lucio Grilli
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 08:28
CPC Classifications
B; B24; B24C; B24C7/00; B05; B05B; B05B12/00; B05B12/08; B05B12/082
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
54 words
A device for checking spray or jet delivery of sprayable products, such as abrasive pastes, paints or lubricants, through a spray apparatus, characterised in that the direction of the jet or spray interferes with that of a radiation beam which extends between emitter and receiver means (14A, B), these means being kept clean pneumatically.
Claim 2
Independent Claim
54 words
A device for checking spray or jet delivery of sprayable products, such as abrasive pastes, paints or lubricants, through a spray apparatus, characterised in that the direction of the jet or spray interferes with that of a radiation beam which extends between emitter and receiver means (14A, B), these means being kept clean pneumatically.
Claim 3
Dependent Claim
31 words
A device as claimed in claim 1, characterised in that the emitter and receiver means comprise optical fibres (14A, B) associated with light radiation generator means (17) and optoelectronic transducers (18).
Claim 4
Dependent Claim
51 words
A device as claimed in claim 1 or claims 1 and 2, characterised in that the pneumatic cleaning is effected by an air stream which passes over at least part of said emitter and receiver means (14A, B), and is then directed in a disintegrated state towards the spray or jet.
Claim 5
Dependent Claim
71 words
A device as claimed in claim 2 or claims 2 and 3, characterised in that said emitter and receiver means (14A, B) terminate in a respective chamber (10A, B) provided in a structure (8) associated with the spray apparatus (1), said chambers (10A, B) being traversed by an air stream which emerges from said chambers towards the spray through a series of apertures (19A, 20A; 19B, 20B) provided in said chambers.
Claim 6
Dependent Claim
35 words
A device as claimed in claim 4, characterised in that one of the apertures (19A, B) of one chamber (10A, 10B) is aligned with that of the other, the radiation traversing said apertures (19A, B).
Claim 7
Independent Claim
39 words
A device as claimed in one or more of the preceding claims, characterised by comprising a counting circuit to detect the absence of spray or jet and to emit a signal after counting a predetermined number of spray absences.
References Cited (Backward Citations)
No citation records indexed.
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