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US4413754A Expired / Lapsed US ⏱️ 0.0 years remaining

Dispenser of small quantities of liquids

Assignee: Boehringer Ingelheim Pharma GmbH and Co KG
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Filing: 1982-03-03
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Granted: 1983-11-08
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Expires: 2002-03-03
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Abstract

Abstract This invention relates to an apparatus for dispensing small quantities of fluid which comprises a hinged clamping member with a bellows attachment for receiving an elongated cylindrical tube containing fluid and having sealed ends, wherein the hinged clamping member consists of two half-shells which enclose an inner space; the two half-shells are enclosed by a retaining and supporting member; the retaining and supporting member consists of symmetrical halves which are connected to each other by a hinge; the inner diameter of the inner space corresponds to the outer diameter of the tube; the two halves of the retaining and supporting member have, adjacent to the hinge, recesses with stops and, on the side opposite the hinge, a locking or snap-fit member; the hinged half-shells comprise, at one end, a shaft whose outer diameter corresponds to the inner diameter of the cylindrical shaft of a bellows attachment; the bellows attachment is provided with an opening which permits the bellows attachment to be pushed unto the shaft; and the retaining and supporting device comprises, on its outer periphery, recesses which are adapted to fit the thumb and middle finger.

Inventors

  • 👤 Frank Landwehr
  • 👤 Heinz Wanner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 02:32
CPC Classifications
B; B01; B01L; B01L9/00; B01L9/54; B01L3/00; B01L3/02; B01L3/021

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 203 words
An apparatus for dispensing small quantities of fluid which comprises a hinged clamping member with a bellows means attachment for receiving a primary packing means in the form of an elongated cylindrical tube containing fluid and having sealed ends, said bellows means attachment having a cylindrical shaft, wherein the hinged clamping member consists of two half-shells which enclose an inner space; the two half-shells are enclosed by a retaining and supporting member; the retaining and supporting member consists of symmetrical halves which are connected to each other by a hinge; the inner diameter of the inner space corresponds to the outer diameter of the tube; the two halves of the retaining and supporting member have, adjacent to the hinge, recesses with stops and, on the side opposite the hinge, a locking or snap-fit means; the hinged half-shells comprise, at one end, a shaft whose outer diameter corresponds to the inner diameter of said cylindrical shaft of said bellows means attachment; the bellows means attachment is provided with an opening which permits the bellows means attachment to be pushed onto the shaft; and the retaining and supporting device comprises, on its outer periphery, recesses which are adapted to fit the thumb and middle finger.
Claim 2
Independent Claim 203 words
An apparatus for dispensing small quantities of fluid which comprises a hinged clamping member with a bellows means attachment for receiving a primary packing means in the form of an elongated cylindrical tube containing fluid and having sealed ends, said bellows means attachment having a cylindrical shaft, wherein the hinged clamping member consists of two half-shells which enclose an inner space; the two half-shells are enclosed by a retaining and supporting member; the retaining and supporting member consists of symmetrical halves which are connected to each other by a hinge; the inner diameter of the inner space corresponds to the outer diameter of the tube; the two halves of the retaining and supporting member have, adjacent to the hinge, recesses with stops and, on the side opposite the hinge, a locking or snap-fit means; the hinged half-shells comprise, at one end, a shaft whose outer diameter corresponds to the inner diameter of said cylindrical shaft of said bellows means attachment; the bellows means attachment is provided with an opening which permits the bellows means attachment to be pushed onto the shaft; and the retaining and supporting device comprises, on its outer periphery, recesses which are adapted to fit the thumb and middle finger.
Claim 3
Dependent Claim 22 words
The apparatus of claim 1, wherein the two half-shells are connected by a hinge means that extends the length of the half-shells.
Claim 4
Dependent Claim 21 words
The apparatus of claim 1, wherein the two half-shells are connected by a hinge means that is intermittent along their length.
Claim 5
Dependent Claim 23 words
The apparatus of claim 1, wherein the elongated tube is provided with a deliberately weakened breaking point in front of each sealed end.
Claim 6
Dependent Claim 14 words
The apparatus of claim 1, wherein the bellows means attachment comprises a concertina-type bellows.

References Cited (Backward Citations)

US3233785A Cited
US3568673A Cited
US3574306A Cited
US3834241A Cited
US4296071A Cited
US4291694A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-11-07 1987-05-09 1987-11-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-11-07 1991-05-09 1991-11-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-11-07 1995-05-09 1995-11-08 $7700.00 Window Closed / Lapsed

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