Integrated vent and fluid transfer fitment

Fluent material handling – with receiver or receiver coacting mea – Processes – Gas or variation of gaseous condition in receiver

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C141S004000, C141S005000, C141S302000, C141S309000, C141S319000, C141S346000, C141S349000, C141S391000, C222S185100, C222S481000

Reexamination Certificate

active

06491069

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to an improved vent and fluid transfer fitment, and more particularly, to a vent and fluid transfer fitment for a fluid-filled container that allows the contents of the container to be vented while being transferred without the contents spilling when the container is inverted.
BACKGROUND OF THE INVENTION
Conventional vent and fluid transfer systems utilize a non-inverted container having a dip tube for transferring fluid from the container. The container is typically vented using a hole in the top of the container. However, the fluid within these systems leak when the container is in an inverted orientation.
Another approach has been to use vented trigger sprayers to dispense fluids from a container. These systems typically use a switch mechanism to close the vent except when the unit is dispensing. However, leakage can occur if the unit is actuated when the container is in a sideways or inverted orientation.
A third approach has been to provide a container with walls that are sufficiently thin such that they collapse under the vacuum pressure created by the removal of the container's contents. This type of system eliminates the need to allow air into the container to displace the fluid that is dispensed from the container. However, the system does not allow a steady fluid flow from the container as the fluid flow will decrease as the vacuum pressure within the container increases.
Therefore, what is needed is an improved vent and fluid transfer fitment that allows fluid to be uniformly transferred from an inverted container without leaking and which vents the container such that the displaced fluid is replaced by air.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an improved vent and fluid transfer fitment.
It is a further object of the present invention to provide a vent and fluid transfer fitment for sealing and transferring a fluid from an inverted fluid-filled container without premature leakage to a receiver attachment, comprising a transfer check valve attached to the fitment for allowing fluid to be transferred from the container when the receiver attachment engages the transfer check valve, and a venting check valve attached to the fitment for allowing air to displace the fluid as the fluid exits the container, wherein both the transfer check valve and the venting check valve have an inherent sealing pressure created by the static pressure of the fluid within the container.


REFERENCES:
patent: 1715632 (1929-06-01), Wertheimer
patent: 2053282 (1936-09-01), Gewalt
patent: 2061216 (1936-11-01), Thomopson
patent: RE20762 (1938-06-01), Thompson
patent: 2137944 (1938-11-01), MacLeod
patent: 2187671 (1940-01-01), Suddarth
patent: 2262334 (1941-11-01), Rugaard
patent: D152616 (1949-02-01), Hartley
patent: 2470837 (1949-05-01), Polson
patent: 2566429 (1951-09-01), Schulman
patent: 2618799 (1952-11-01), Barbato
patent: 2851201 (1958-09-01), Poitras et al.
patent: 3081481 (1963-03-01), Nohl et al.
patent: 3094152 (1963-06-01), Kenny et al.
patent: 3099028 (1963-07-01), Ardito
patent: 3149758 (1964-09-01), Bush et al.
patent: 3188669 (1965-06-01), Beardslee
patent: 3278974 (1966-10-01), Nighswander
patent: D207947 (1967-06-01), Johnson et al.
patent: D223945 (1972-06-01), Bousquet
patent: 3926339 (1975-12-01), Openchowski
patent: 4119386 (1978-10-01), Cushing
patent: 4130224 (1978-12-01), Norman et al.
patent: 4314658 (1982-02-01), Laaauwe
patent: 4353488 (1982-10-01), Schneiter et al.
patent: 4533068 (1985-08-01), Meierhoefer
patent: 4646945 (1987-03-01), Steiner et al.
patent: 4646947 (1987-03-01), Stull
patent: 4673109 (1987-06-01), Cassia
patent: 4747518 (1988-05-01), Laauwe
patent: 4765588 (1988-08-01), Atkinson
patent: 4776495 (1988-10-01), Vignot
patent: 4846376 (1989-07-01), Palmer
patent: 4863299 (1989-09-01), Osberghaus et al.
patent: 4971471 (1990-11-01), Sloan
patent: 5086950 (1992-02-01), Crossdale et al.
patent: 5092699 (1992-03-01), Silvenis
patent: 5102010 (1992-04-01), Osgar et al.
patent: 5133482 (1992-07-01), Burrows et al.
patent: 5169035 (1992-12-01), Imbery
patent: 5244124 (1993-09-01), Raffo
patent: 5251873 (1993-10-01), Atkinson et al.
patent: 5295657 (1994-03-01), Atkinson
patent: 5295658 (1994-03-01), Atkinson et al.
patent: 5402982 (1995-04-01), Atkinson et al.
patent: D358238 (1995-05-01), Barnett
patent: 5431205 (1995-07-01), Gebhard
patent: 5433353 (1995-07-01), Flinn
patent: 5472122 (1995-12-01), Appleby
patent: 5494074 (1996-02-01), Ramacier, Jr. et al.
patent: 5501426 (1996-03-01), Atkinson et al.
patent: 5533708 (1996-07-01), Atkinson et al.
patent: 5577638 (1996-11-01), Takagawa
patent: 5636402 (1997-06-01), Kubo et al.
patent: 5735959 (1998-04-01), Kubo et al.
patent: D396908 (1998-08-01), Beechuk et al.
patent: D401703 (1998-11-01), Beechuk et al.
patent: 5888006 (1999-03-01), Ping et al.
patent: 6427730 (2002-08-01), Nagel et al.
patent: 1269210 (1990-05-01), None
patent: 2225303 (1998-06-01), None
patent: WO 99/65819 (1999-12-01), None
patent: WO 01/26531 (2001-04-01), None
patent: WO 01/72195 (2001-10-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Integrated vent and fluid transfer fitment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated vent and fluid transfer fitment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated vent and fluid transfer fitment will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2996614

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.