Vented refill units and dispensers having vented refill units
First Claim
1. A refill unit for a soap, sanitizer or lotion comprising:
- a non-collapsing inverted container;
the non-collapsing inverted container having a neck located at the bottom of the container;
a pump secured to the neck;
the pump having a housing;
the housing having a cylindrical outside surface;
a venting insert;
the venting insert having a cylindrical surface and an upper surface located above the pump housing;
the upper surface located at a first end of the cylindrical surface;
the cylindrical surface of the venting insert at least partially surrounding the cylindrical outer surface of the pump housing;
air passage is located between the pump housing and an inside surface of the venting insert;
a one-way air inlet valve located on the upper surface.
4 Assignments
0 Petitions
Accused Products
Abstract
Exemplary embodiments of vented refill units and dispensers having vented refill units are disclosed herein. An exemplary refill unit includes a non-collapsing inverted container. The container has a neck located at the bottom of the container. A pump is secured to the neck. The pump has a housing that has a cylindrical outside surface. In addition, the housing has an attachment mechanism for attaching the pump to a venting insert. The venting insert has a cylindrical inside surface and a cylindrical outside surface. At least a portion of the venting insert is located within the neck. An air passage is located between the pump housing and the cylindrical inside surface of the venting insert. One or more apertures are located through the venting insert. A one-way air inlet valve is located proximate the one or more apertures.
135 Citations
19 Claims
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1. A refill unit for a soap, sanitizer or lotion comprising:
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a non-collapsing inverted container; the non-collapsing inverted container having a neck located at the bottom of the container; a pump secured to the neck; the pump having a housing; the housing having a cylindrical outside surface; a venting insert; the venting insert having a cylindrical surface and an upper surface located above the pump housing; the upper surface located at a first end of the cylindrical surface; the cylindrical surface of the venting insert at least partially surrounding the cylindrical outer surface of the pump housing; air passage is located between the pump housing and an inside surface of the venting insert; a one-way air inlet valve located on the upper surface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A refill unit for a soap, sanitizer or lotion comprising:
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a non-collapsing container; the non-collapsing container having a neck located at the bottom of the container when the refill unit is in its normal dispensing position; a pump having a liquid pump chamber and an air pump chamber; the air pump chamber having an outside cylindrical surface; a venting insert at least partially surrounding the air pump chamber; an air passage located between the outside cylindrical surface of the housing and an inside surface of the venting insert; an aperture through the top of the venting insert; and a one-way air inlet valve located proximate the aperture, wherein the one-way air inlet valve allows air to flow into the non-collapsing container and prevents fluid or air from flowing into the air passage. - View Dependent Claims (9, 10, 11, 12)
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13. A pump for pumping fluid out of a non-collapsing inverted container;
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the pump having a liquid inlet located on a first end of the pump; a venting insert having a cylindrical housing at least partially surrounding the pump; the venting insert having a top portion that covers at least a portion of the first end of the pump; an aperture through the top portion; and a one-way air inlet valve located proximate the aperture. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification