Off-axis inverted foam dispensers and refill units
US-9204765-B2 · Dec 8, 2015 · US
Foam pumps with lost motion and adjustable output foam pumps
US8955718B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8955718-B2 |
| Application number | US-201313791332-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 8, 2013 |
| Priority date | Oct 31, 2012 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Embodiments of lost motion foam pumps are disclosed herein. One exemplary embodiment includes a liquid chamber, a liquid piston movable in the liquid chamber, an air chamber and an air piston movable in the air chamber. The air piston is linked to the liquid piston. A connector is linked to the air piston or the liquid piston. The connector includes an engagement member for connecting to an actuator of a foam dispenser. Movement of the actuator in a first direction moves the liquid and air pistons to contract the liquid chamber and the air chamber. Movement of the actuator a first distance in a second direction does not move the liquid piston or the air piston; however, continued movement of the actuator a second distance in the second direction moves the liquid piston and the air piston and expands the liquid and air chambers.
First claim
Opening claim text (preview).
We claim: 1. A refill unit having a lost motion foam pump comprising: a container for holding a foamable liquid; a pump housing connected to the container; a liquid chamber; a liquid piston movable in the liquid chamber; an air chamber; an air piston movable in the air chamber; the air piston linked to the liquid piston; a lost motion connector linked to the air piston or the liquid piston; the lost motion connector having an engagement member for connecting to an…
Assignees
Inventors
Classifications
- B05B11/1087Primary
Operations & Transport · mapped topic
- B05B7/0025Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8955718B2 cover?
- Embodiments of lost motion foam pumps are disclosed herein. One exemplary embodiment includes a liquid chamber, a liquid piston movable in the liquid chamber, an air chamber and an air piston movable in the air chamber. The air piston is linked to the liquid piston. A connector is linked to the air piston or the liquid piston. The connector includes an engagement member for connecting to an act…
- Who is the assignee on this patent?
- Ciavarella Nick E, Tederous Cory J, Mcnulty John J, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B05B11/1087. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).