Spraying apparatus and nozzle devices
First Claim
1. A nozzle device (10) comprising a hollow unitary moulded plastic body (11) having a nozzle opening (19) to discharge fluid as a jet or spray;
- the body (11) comprising a first part (14) having an inlet (12A) to admit fluid under pressure into the first part, and a second part (16) movable relative to the first part;
wherein the nozzle opening (19) and a feed passage (18) leading to the nozzle opening (19) meet at a junction and are defined between portions (17B) of abutment surfaces (17) of the first and second parts; and
wherein the parts (14,16) are at least partially separable to expose the feed passage (18) and the nozzle opening (19) and the junction for wiping; and
characterised in that the first part (14) is attached to the second part (16) to be swung away from the other (14) to separate and expose said surfaces (17) entirely whilst the parts (14,16) remain connected to the hinge, and in that said parts (14,16) have sealing means bordering said portions of said surfaces adjacent to said nozzle opening junction and feed passage; and
in that said sealing means (17D;
40,41) comprises a recessed formation (17D;
41) which is disposed in one of said surfaces (17) and extends from the periphery 30 of said surface, and a projecting formation on the other surface which sealingly engages in a recessed formation (17D;
40) when said parts (14,16) are swung to abut at an interface (17A) between said surfaces (17) and are held in abutment by resiliently releasable retaining means (40,41;
51,52).
1 Assignment
0 Petitions
Accused Products
Abstract
A hollow body having a nozzle opening to discharge fluid as a jet or spray; the body comprising a first part having an inlet to admit fluid under pressure into the first part, and a second part movable relative to the first part and said first and second parts are relatively movable from an abutting position in which they define therebetween the nozzle opening and a fluid feed passage in the body and leading to the nozzle opening, and a cleaning position in which the fluid feed passage is split open longitudinally and the nozzle opening is split open to expose the nozzle and passage defining and abutting surfaces of said parts, for cleaning.
51 Citations
13 Claims
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1. A nozzle device (10) comprising a hollow unitary moulded plastic body (11) having a nozzle opening (19) to discharge fluid as a jet or spray;
- the body (11) comprising a first part (14) having an inlet (12A) to admit fluid under pressure into the first part, and a second part (16) movable relative to the first part;
wherein the nozzle opening (19) and a feed passage (18) leading to the nozzle opening (19) meet at a junction and are defined between portions (17B) of abutment surfaces (17) of the first and second parts; and
wherein the parts (14,16) are at least partially separable to expose the feed passage (18) and the nozzle opening (19) and the junction for wiping; and
characterised in that the first part (14) is attached to the second part (16) to be swung away from the other (14) to separate and expose said surfaces (17) entirely whilst the parts (14,16) remain connected to the hinge, and in that said parts (14,16) have sealing means bordering said portions of said surfaces adjacent to said nozzle opening junction and feed passage; and
in that said sealing means (17D;
40,41) comprises a recessed formation (17D;
41) which is disposed in one of said surfaces (17) and extends from the periphery 30 of said surface, and a projecting formation on the other surface which sealingly engages in a recessed formation (17D;
40) when said parts (14,16) are swung to abut at an interface (17A) between said surfaces (17) and are held in abutment by resiliently releasable retaining means (40,41;
51,52). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- the body (11) comprising a first part (14) having an inlet (12A) to admit fluid under pressure into the first part, and a second part (16) movable relative to the first part;
- 11. Spraying apparatus having a nozzle device (10) comprising a unitary-moulded plastic body comprising a lid and a base, each comprising a respective main web having an abutment surface to abut the abutment surface of the other main web and define therewith a nozzle opening open at the periphery of the body, a feed passage connecting said nozzle opening with a junction so that separation of said lid and base exposes said surfaces and the surface portions bounding said nozzle opening, feed passage and junction and a junction end of an inlet formed in the base, for wiping, wherein said surfaces and webs are shaped to provide sealing means and interengaging guide means both comprising complimentary shaped male and female formations which extend from said periphery to border said portions of said surfaces for determining the positions of said surface portions and effecting sealing around said surface portions, when the lid is held in abutment with the base by resilient retaining means.
Specification