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Squeeze bottle apparatus with force multiplying pistons

  • US 5,289,948 A
  • Filed: 04/03/1992
  • Issued: 03/01/1994
  • Est. Priority Date: 01/23/1989
  • Status: Expired due to Fees
First Claim
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1. A spray bottle adapted for holding at least one fluid and producing a media of this fluid upon being squeezed, said spray bottle comprising:

  • (a) a fluid spray discharge member including a spray nozzle;

    (b) a container for holding said at least one fluid within its interior, said container having a stiff portion and a resilient portion proportioned and arranged to permit deformation of said resilient portion while preserving an orientation of said fluid spray discharge member;

    (c) a housing constructed and arranged for being mounted on said container, said housing including;

    at least one high pressure chamber in controlled communication with said spray nozzle and a fluid within said container, andat least one low pressure chamber in communication with the atmosphere outside said container;

    (d) at least one dispensing pump constructed and arranged to drive said fluid out through said nozzle at high pressure including;

    a first fluid displacer which is mounted in said high pressure chamber for applying pressure to any fluid within this chamber, anda second fluid displacer of greater diameter than said first fluid displacer, which is mounted in said low pressure chamber so as to partition this chamber off from the interior of said container and which is rigidly connected to said first fluid displacer so as to be movable therewith, said hydraulic assembly being operative for being displaced within said low pressure chamber when said bottle is squeezed; and

    (e) valve means for controlling the transfer of fluid into and out of said at least one high pressure chamber so that fluid will flow out of said high pressure chamber through said nozzle when said bottle is squeezed and flow into said chamber from the interior of said container as said bottle recovers from being squeezed.

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