DUAL TUBULAR DISPENSING DEVICE

• US 3,827,602 A
• Filed: 01/22/1973
• Issued: 08/06/1974
• Est. Priority Date: 10/26/1970
• Status: Expired due to Term

• Current Assignee: Augustus H. Nicholls
• Original Assignee: Augustus H. Nicholls
• Inventors: Nicholls, Augustus H.
• Primary Examiner(s): Tollberg, Stanley H.
• Assistant Examiner(s): Stack, Jr., Norman L.
• Application Number:
  US05/325,854
• Time in Patent Office: 561 Days
• Field of Search: 222/94,137,276,288,325-327,305,438,526,527,440,146HE,741 206/57 138/26,30,31 141/140,147 128/218P,218PA,218C,234,218
• US Class Current: 222/137
• CPC Class Codes: B65D 81/325 Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents
• CPC Class Codes: B65D 83/0005 Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container B65D83/0072 takes precedence

Abstract

A dispensing device including a duality of barrels attached together, each receiving a piston, the pistons being attached together exteriorly of the barrels for simultaneous and equal movement in ejecting material from nozzles at the ends of the barrels, each piston having a sealing means which may be a wedgeshaped forwardly projecting annular lip, the barrels including spaced grooves or ridges in their circumferential walls to interrupt the seals and allow air to bleed out when the barrels are filled. One piston may be provided with a stop to prevent reverse movement. An insert may be included in one of the barrels to fit through an opening in the piston and reduce the volume in the barrel to change the ratio of materials dispensed from the two barrels.

Claims

1. A device for dispensing materials comprising a duality of tubular barrels, each of said barrels being of substantially uniform crosssection and having an outlet opening at one end thereof, means attaching said barrels together, a piston slidably received in each of said barrels, means attaching said pistons together, whereby said pistons are movable simultaneously and equally in said barrels from a location adjacent the opposite ends of said barrels toward said outlet openings for ejecting material from said barrels in a first substantially constant ratio, and means for selectively varying the volume of one of said barrels for thereby varying the ratio of material ejected from said one barrel to material ejected from the other of said barrels, said means for selectively varying the volume of one of said barrels including an elongated member receivable in said one barrel, said elongated member having a continuous exterior surface and being of substantially uniform predetermined cross section, and means to secure said member in said one barrel substantially at the longitudinal axis thereof with one end of said member adjacent said one end of said barrel, said member being of a length such that when it is so positioned the opposite end of said member extends at least to said location adjacent said opposite end of said one barrel, whereby said member occupies a predetermined volume of said barrel at said longitudinal axis thereof, the piston in said one barrel being adapted to have an opening formed therein for slidably receiving said member, whereby when said pistons are so moved simultaneously said pistons can eject material from said barrelS in a second substantially constant ratio.

2. A device as recited in claim 1 in which said piston in said one barrel has an end wall adjacent said outlet opening, and a tubular portion extending from said end wall, said elongated member being smaller in transverse dimension than that of the interior of said tubular portion, whereby upon forming an opening in said end wall said elongated member is receivable in said tubular portion.

3. A device as recited in claim 1 in which said means to secure said member in said one barrel includes a resilient sheet metal member connected to said elongated member and extending transversely thereof, said sheet metal member having a free dimension in which it extends transversely a greater distance than the interior transverse dimension of said one barrel, and having edge surfaces engageable with the inner surface of said one barrel, whereby said sheet metal member bears against the inner surface of said one barrel and can prevent movement of said elongated member away from said outlet opening in said one barrel.

4. A device as recited in claim 3 in which said sheet metal member is arcuate for presenting a concave surface remote from said outlet opening in said one barrel.

5. A device as recited in claim 4 in which said elongated member has a post at one end thereof, said sheet metal member having opposed tabs defining an aperture receiving said post, said tabs engaging said post at said aperture for attaching said sheet metal member to said elongated member, said sheet metal member being substantially rectangular in plan.