Apparatus for spraying liquids, and adapters and liquid reservoirs suitable for use therewith
DC
First Claim
Patent Images
1. A spray gun paint reservoir comprising:
- a liner comprising;
a base;
a sidewall;
an open end;
a rim at the open end; and
an internal surface;
the liner being self-supporting, but also being collapsible in use as a paint is withdrawn from the reservoir; and
a lid that is a push-fit in the open end of the liner, the lid comprising;
an outwardly-extending rim adapted to sit on top of the liner rim;
a central aperture from which extends a connector tube adapted to connect the reservoir to a compatible spray gun, the central aperture and connector tube forming an outlet for paint from the reservoir; and
a filter mesh covering the central aperture.
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Abstract
Apparatus and methods for spraying a liquid relating to a gravity-fed spray gun are disclosed. Disclosed gravity fed spray guns may comprise a body and an attachment point located at a top portion of the body; and a spray nozzle located at a front portion of the body. An apparatus may further comprise a fluid reservoir configured to contain a fluid to be sprayed through the spray nozzle, the fluid reservoir comprising a container comprising an open end; a lid for cooperative engagement with the open end of the container, the lid comprising a connector to couple the fluid reservoir to the attachment point of the spray gun and an aperture through which the fluid can flow from the fluid reservoir to the spray nozzle in use; and a filter positioned to filter the fluid before reaching the spray nozzle.
169 Citations
29 Claims
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1. A spray gun paint reservoir comprising:
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a liner comprising; a base; a sidewall; an open end; a rim at the open end; and an internal surface; the liner being self-supporting, but also being collapsible in use as a paint is withdrawn from the reservoir; and a lid that is a push-fit in the open end of the liner, the lid comprising; an outwardly-extending rim adapted to sit on top of the liner rim; a central aperture from which extends a connector tube adapted to connect the reservoir to a compatible spray gun, the central aperture and connector tube forming an outlet for paint from the reservoir; and a filter mesh covering the central aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A spray gun paint reservoir comprising:
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a thermo-formed plastic liner comprising; a base; a sidewall; an open end; a rim at the open end; and an internal surface; the liner being self-supporting, but also being collapsible in use as a paint is withdrawn from the reservoir; and a lid that is a push-fit in the open end of the liner, the lid comprising; an outwardly-extending rim adapted to sit on top of the liner rim; a shaped portion that will engage the internal surface of the liner proximate the open end of the liner when the lid is pushed into the open end of the liner; a central aperture from which extends a connector tube adapted to connect the reservoir to a compatible spray gun, the central aperture and connector tube forming an outlet for paint from the reservoir; and a filter mesh covering the central aperture. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A gravity fed spray gun paint reservoir comprising:
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a thermo-formed plastic liner comprising; a base; a sidewall; an open end; a rim at the open end; and an internal surface; the liner being self-supporting and capable of standing, unsupported, on its base with the sidewall extended and upright, but also being collapsible in use as a paint is withdrawn from the reservoir; and a lid that is a push-fit in the open end of the liner, the lid comprising; an outwardly-extending rim adapted to sit on top of the liner rim; a shaped portion that will engage the internal surface of the liner proximate the open end of the liner when the lid is pushed into the open end of the liner; a recess proximate the shaped portion into which the internal surface of the liner can contract so that the lid is securely located on the liner; a central aperture in a generally conical upper surface of the lid from which extends a connector tube adapted to connect the reservoir to a compatible gravity fed spray gun, the central aperture and connector tube forming an outlet for paint from the reservoir; and a filter mesh covering the central aperture. - View Dependent Claims (29)
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Specification
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Litigation Data
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Current Assignee3M Innovative Properties Company (3M Company)
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Original Assignee3M Innovative Properties Company (3M Company)
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InventorsJoseph, Stephen C. P., Douglas, Malcolm F., Butler, Alan F., Bastow, David R., Salhus, Jerome E., Hartfel, Margaret A.
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Primary Examiner(s)Nguyen, Dinh Q
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Application NumberUS14/554,927Publication NumberTime in Patent Office384 DaysField of Search239/345, 239/346, 239/309, 239/318, 239/327, 239/328US Class Current1/1CPC Class CodesB01D 35/02 Filters adapted for locatio...B01D 35/28 Strainers not provided for ...B05B 7/2408 characterised by the contai...B05B 7/247 a liquid being fed by gravi...B05B 7/2478 Gun with a container which,...B05B 7/2481 with a flexible container f...B29C 2791/006 Using vacuumB29C 2791/007 Using fluid under pressureB29C 51/08 Deep drawing or matched-mou...B29C 51/10 Forming by pressure differe...B29K 2023/0633 LDPE, i.e. low density poly...Y10S 239/14 Paint sprayers
