Foam dispensing device

• US 4,184,615 A
• Filed: 04/11/1977
• Issued: 01/22/1980
• Est. Priority Date: 04/03/1975
• Status: Expired due to Term

• Current Assignee: Hershel E. Wright
• Original Assignee: Hershel E. Wright
• Inventors: Wright, Hershel E.
• Primary Examiner(s): Marmor, Charles A.
• Application Number:
  US05/786,087
• Time in Patent Office: 1,016 Days
• Field of Search: 222/189, 222/190, 222/211-213, 239/343, 239/327
• US Class Current: 222/190
• CPC Class Codes: A45D 27/02 Lathering the body; Producing lather shaving-brushes A46B
• CPC Class Codes: A47K 5/14 Foam or lather making devices for shaving A45D27/02
• CPC Class Codes: B05B 11/0059 allowing operation in any orientation, e.g. for discharge in inverted position
• CPC Class Codes: B05B 11/043 designed for spraying a liquid B05B11/046 takes precedence
• CPC Class Codes: B05B 11/046 the gas or vapour flow coming from a source where the gas or vapour is not in contact with the liquid or other fluent material to be sprayed, e.g. from a compressive bulb, an air pump or an enclosure surrounding the container
• CPC Class Codes: B05B 7/0037 including sieves, porous members or the like

Abstract

This foam dispensing device includes a flexible container for foamable liquid having a discharge opening at one end. The container is provided with a foam producing assembly which includes a passage leading to the discharge opening and at least one porous member mounted in the passage and having a foam discharging area greater than the cross-sectional area of the passage at the mounting location.

Claims

1. A foam dispensing device comprising:

(a) a flexible container for holding a foamable liquid and air having a discharge port,

(b) foam producing means separating the area adjacent said discharge port and the interior of the container including;

(1) passage means from the interior of the container leading to the discharge port, said passage means having a cross sectional area smaller than the container,

(2) at least one porous member mounted in the passage means, the porous member having a foam discharging surface area greater than the minimum cross-sectional area of the passage means at the mounting location.

2. A foam dispensing device as defined in claim 1, in which:

(c) the foam producing means includes a primary foam producing stage and a secondary foam producing stage, at least said secondary foam producing stage including said porous member.

3. A foam dispensing device as defined in claim 1, in which:

(c) the foam producing means includes a primary foam producing stage and a secondary foam producing stage disposed outwardly of said primary foam producing stage, each of said foam producing stages including a porous member having a foam discharge surface area greater than the minimum cross-sectional area of the passage means at the mounting location.

4. A foam dispensing device as defined in claim 1, in which:

(c) the porous member includes a mounting portion engageable with the sides of the passage and a foam discharge portion spaced from the sides of the passage.

5. A foam dispensing device as defined in claim 2, in which:

(d) the porous member is hollow and includes a mounting portion engageable with the sides of the passage and a foam discharge portion spaced from the sides of the passage.

6. A foam dispensing device as defined in claim 5, in which:

(d) the hollow porous member foam discharge portion has a substantially conical configuration.

7. A foam dispensing device comprising:

(a) a flexible container for holding a foamable liquid and air having a discharge port,

(b) foam producing means separating the area adjacent said discharge port and the interior of the container including;

(1) passage means leading to the discharge port,

(2) a primary foam producing stage and a secondary foam producing stage disposed outwardly of the primary foam producing stage, said secondary foam producing stage including a stationary porous member mounted in the passage means, the porous member having a foam discharging surface area greater than the minimum cross-sectional area of the passage means at the fixed mounting location.