US4148317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduced length tampon-applicator assembly
Assignee: Personal Products Co
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Filing: 1977-09-14
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Granted: 1979-04-10
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Expires: 1997-09-14
Abstract
Abstract A tampon-applicator assembly of reduced length is provided comprising a generally cylindrical absorbent tampon having a proximal end and a distal end and a tampon bore within the tampon extending from said distal end toward the proximal end. A retainer is affixed to the distal end and has a bore therethrough coaxial with the tampon bore. A plunger is provided and adapted to be stored within the bore prior to use and to be reciprocated out of the tampon bore when the tampon is to be inserted. Screw threads or longitudinal splines are provided for the plunger to bear against the retainer. The retainer bears against the tampon when insertion pressure is applied. After insertion, the plunger and the retainer are removable.
Inventors
- 👤 Michael Loyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:20
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/26; A61F13/263
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
150 words
A tampon-applicator assembly comprising: a generally cylindrical absorbent tampon having a proximal end and a distal end; a tampon bore within the tampon, longitudinally extending from said distal end toward said proximal end; a retainer affixed to said distal end and having a retainer bore therethrough coaxial with said tampon bore; a longitudinally extending plunger adapted to be stored substantially within said bores prior to use and to be reciprocated substantially out of said tampon bore in the direction of from the proximal end toward the distal end when the tampon is to be inserted; first means for said plunger to bear against said retainer when pressure is applied to said plunger in the direction of toward the proximal end during insertion; and second means for said retainer to bear against said tampon when pressure is applied to said plunger in the direction of toward the proximal end during insertion.
Claim 2
Dependent Claim
150 words
A tampon-applicator assembly comprising: a generally cylindrical absorbent tampon having a proximal end and a distal end; a tampon bore within the tampon, longitudinally extending from said distal end toward said proximal end; a retainer affixed to said distal end and having a retainer bore therethrough coaxial with said tampon bore; a longitudinally extending plunger adapted to be stored substantially within said bores prior to use and to be reciprocated substantially out of said tampon bore in the direction of from the proximal end toward the distal end when the tampon is to be inserted; first means for said plunger to bear against said retainer when pressure is applied to said plunger in the direction of toward the proximal end during insertion; and second means for said retainer to bear against said tampon when pressure is applied to said plunger in the direction of toward the proximal end during insertion.
Claim 3
Dependent Claim
55 words
The tampon-applicator assembly of claim 1 wherein said first means comprise having the longitudinal length of the plunger provided with threads adapted to engage threads in the inside surface of the retainer bore whereby said engaged threads will provide bearing surfaces for the plunger to bear against the retainer when pressure is applied during insertion.
Claim 4
Dependent Claim
127 words
The tampon-applicator assembly of claim 1 wherein said first means comprise: having said plunger provided with one or more circumferentially spaced splines extending from the distal end of said plunger toward the proximal end; providing, at said proximal end of said plunger, an enlarged head, said splines terminating at a distance from said enlarged head at least equal to the longitudinal length of said retainer bore; said retainer bore having keyways adapted to slidably engage said splines when said plunger is in a stored position; whereby said plunger may be reciprocated out of said stored position into an insertion position and rotated about its axis whereupon said splines, will be out of registry with said keyways and bear against said retainer when pressure is applied during insertion.
Claim 5
Dependent Claim
83 words
The tampon-applicator assembly of claim 1 wherein said second means comprise: providing, in the proximal end of said retainer, a bearing bore having a diameter larger than the retainer bore and extending only partially toward the distal end of said retainer, said bearing bore having a bottom surface; the distal end of said tampon being inserted into said bearing bore and against said bottom surface whereby said retainer will bear against the distal end of said tampon when pressure is applied during insertion.
Claim 6
Dependent Claim
45 words
The tampon-applicator assembly of claim 4 wherein the distal portion of the tampon has a reduced diameter whereby a shoulder is formed between said distal portions and the remainder of the tampon and said bearing bore having a diameter approximately equal to said reduced diameter.
Claim 7
Dependent Claim
38 words
The tampon-applicator assembly of claim 4 wherein the proximal end of the plunger is provided with an enlarged head having a diameter larger than said retainer bore to preclude said plunger from passing out of said retainer bore.
Claim 8
Dependent Claim
72 words
The tampon-applicator assembly of claim 1 wherein said second means comprise: the outside diameter of said retainer being less than the diameter of said tampon; the outside surface of said retainer being provided with circumferencial projections, and said retainer being emplaced within the body of the tampon at the distal end whereby upon application of insertion pressure, said retainer and said circumferencial projections will bear against the distal end of said tampon.
Claim 9
Dependent Claim
28 words
The tampon-applicator assembly of claim 7 wherein the distal end of said tampon is provided with an enlarged tampon bore of a length sufficient to accommodate said retainer.
Claim 10
Dependent Claim
12 words
The tampon-applicator assembly of claim 7 wherein said circumferential projections are rings.
Claim 11
Dependent Claim
12 words
The tampon-applicator assembly of claim 7 wherein said circumferential projections are barbs.
Claim 12
Dependent Claim
12 words
The tampon-applicator assembly of claim 7 wherein said circumferencial projections are threads.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |