← Back to Patent Explorer
US4479791A Expired / Lapsed US ⏱️ 0.0 years remaining

Tampon applicator

Assignee: Tambrands Inc
•
Filing: 1983-05-09
•
Granted: 1984-10-30
•
Expires: 2003-05-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A tampon applicator of the telescoping tube type including an ejector tube adapted to store a tampon in its distal end, a plurality of fingers formed in said distal end, an outer tube slip fit over the ejector tube, directionally-locking inward projections fixed within the distal end of said outer tube so as to pass between said fingers and engage a tampon carried therein thus securing the latter relative to said outer tube while permitting only distal expulsion therefrom. Said applicator charged with a tampon is packaged and stored in a telescopically collapsed position. It is activated for use by partial withdrawal of the ejector tube from the outer tube until the fingers of the ejector tube pass beyond the tampon and catch behind the proximal end of said tampon. The applicator is then used in the usual manner by telescopically collapsing the ejector tube into the outer tube, whereby the ejector tube serves as a plunger bearing against the proximal end of the tampon to expel the latter. Said outer tube preferably has inwardly curving protective petal sections at its distal end which form a rounded tip for facilitating insertion yet yieldably pass the tampon therethrough during the ejection step.

Inventors

  • 👤 E. Russell Sprague

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 23:33
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/26; A61F13/263

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 177 words
A catamenial tampon applicator comprising: an ejector tube adapted to store a tampon therein, the distal end of said ejector tube comprising a plurality of spaced apart fingers; an outer tube slidably disposed over said ejector tube and having a distal discharge end; gripping means associated with said outer tube for engaging a tampon carried in said ejector tube so as to resist movement of such a said tampon towards the proximal end of said outer tube while permitting discharge of such a tampon from said distal end; and restraining means for preventing the disassembly of said ejector tube from said outer tube including a circumferentially extending raised detent means and a mating circumferential groove, respectively formed on the outer distal surface of said ejector tube and on the inner proximal end of said outer tube, said detent means being formed as a series of annularly extending raised ribs formed on the outside of the fingers of said ejector tube and said groove being formed on the inner surface of said outer tube adjacent its proximal end.
Claim 2
Dependent Claim 177 words
A catamenial tampon applicator comprising: an ejector tube adapted to store a tampon therein, the distal end of said ejector tube comprising a plurality of spaced apart fingers; an outer tube slidably disposed over said ejector tube and having a distal discharge end; gripping means associated with said outer tube for engaging a tampon carried in said ejector tube so as to resist movement of such a said tampon towards the proximal end of said outer tube while permitting discharge of such a tampon from said distal end; and restraining means for preventing the disassembly of said ejector tube from said outer tube including a circumferentially extending raised detent means and a mating circumferential groove, respectively formed on the outer distal surface of said ejector tube and on the inner proximal end of said outer tube, said detent means being formed as a series of annularly extending raised ribs formed on the outside of the fingers of said ejector tube and said groove being formed on the inner surface of said outer tube adjacent its proximal end.

References Cited (Backward Citations)

US2832342A Cited
US3090385A Cited
US3101713A Cited
US3766921A Cited
US4273125A Cited
US4286595A Cited
US4276881A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-10-30 1988-04-30 1988-10-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-10-30 1992-04-30 1992-10-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-10-30 1996-04-30 1996-10-30 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag