US3786807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaphragm and insertion-removal unit therefor
Assignee: Individual
•
Filing: 1972-02-29
•
Granted: 1974-01-22
•
Expires: 1992-02-29
Abstract
Abstract A disposable diaphragm and reusable insertion-removal unit which enables the user to easily insert, position and remove the diaphragm. The diaphragm includes a magnetically attractable object embedded in absorbent material, such magnetically attractable object being attracted to or released from the tip of an insertion-removal unit, the insertion-removal unit having a magnet at the end of a plunger-rod. When the plunger-rod is advanced forward, it attracts and holds the diaphragm and when it is retracted it releases the diaphragm.
Inventors
- 👤 D Dubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:10
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/08; A61F6/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
43 words
A disposable diaphragm comprising a soft, non-permeable backing member in a bowl-shaped configuration, an absorbent means for retaining a spermicidal agent, said absorbent means positioned within the inner side of said backing member, and a magnetically attractable disc embedded in said absorbent means.
Claim 2
Dependent Claim
43 words
A disposable diaphragm comprising a soft, non-permeable backing member in a bowl-shaped configuration, an absorbent means for retaining a spermicidal agent, said absorbent means positioned within the inner side of said backing member, and a magnetically attractable disc embedded in said absorbent means.
Claim 3
Dependent Claim
18 words
A disposable diaphragm as defined by claim 1 wherein said non-permeable backing member is a thin synthetic rubber.
Claim 4
Dependent Claim
14 words
A disposable diaphragm as defined by claim 1 wherein said absorbent means is cotton.
Claim 5
Dependent Claim
17 words
A disposable diaphragm as defined by claim 1 wherein said absorbent means is a non-woven fibrous material.
Claim 6
Dependent Claim
18 words
A disposable diaphragm as defined by claim 1 wherein said magnetically attractable disc is a stainless steel disc.
Claim 7
Dependent Claim
132 words
An insertion-removal unit for diaphragms comprising a hollow cylinder having a widened central bore over a portion of the length thereof, said cylinder having outwardly extending flanges at one end thereof and a rounded tip at the opposite end; a cylindrical plunger-rod movably located within said hollow cylinder and extending beyond said cylinder at said flanged end; handle means at the end of said plunger-rod extending beyond said cylinder; a magnet forming the end of said plunger-rod opposite said handle means, said plunger-rod having a fixed annular rim located between said magnet and handle means, said rim being of a circumference lesser than said widened central bore and greater than the remainder of the bore of said hollow cylinder, thereby defining the limit of movement of said plunger-rod within said hollow cylinder.
Claim 8
Dependent Claim
132 words
An insertion-removal unit for diaphragms comprising a hollow cylinder having a widened central bore over a portion of the length thereof, said cylinder having outwardly extending flanges at one end thereof and a rounded tip at the opposite end; a cylindrical plunger-rod movably located within said hollow cylinder and extending beyond said cylinder at said flanged end; handle means at the end of said plunger-rod extending beyond said cylinder; a magnet forming the end of said plunger-rod opposite said handle means, said plunger-rod having a fixed annular rim located between said magnet and handle means, said rim being of a circumference lesser than said widened central bore and greater than the remainder of the bore of said hollow cylinder, thereby defining the limit of movement of said plunger-rod within said hollow cylinder.
Claim 9
Dependent Claim
25 words
An insertion-removal unit as defined by claim 6 wherein the hollow cylinder with outwardly extending flanges is comprised of a smooth, essentially rigid plastic material.
Claim 10
Dependent Claim
17 words
An insertion-removal unit as defined by claim 6 wherein the magnet is adhesively attached to said plunger-rod.
Claim 11
Dependent Claim
178 words
The combination of a disposable diaphragm and an insertion-removal unit wherein the diaphragm comprises a soft non-permeable backing member in a bowl-shaped configuration; an absorbent lining material positioned within to the inner side of the backing member and embedded in the absorbent lining, a magnetically attractable disc and wherein the insertion-removal unit comprises a hollow cylinder having widened central bore over a portion of the length thereof, said cylinder having outwardly extending flanges at one end thereof and a rounded tip at the opposite end; a cylindrical plunger-rod movably located within said hollow cylinder and extending beyond said cylinder at said flanged end; handle means at the end of said plunger-rod extending beyond said cylinder, a magnet forming the end of said plunger-rod opposite said handle means, said plunger-rod having a fixed annular rim located between said magnet and handle means, said rim being of a circumference lesser than said widened central bore and greater than the remainder of the bore of said hollow cylinder, thereby defining the limit of movement of said plunger-rod within said hollow cylinder.
Claim 12
Dependent Claim
178 words
The combination of a disposable diaphragm and an insertion-removal unit wherein the diaphragm comprises a soft non-permeable backing member in a bowl-shaped configuration; an absorbent lining material positioned within to the inner side of the backing member and embedded in the absorbent lining, a magnetically attractable disc and wherein the insertion-removal unit comprises a hollow cylinder having widened central bore over a portion of the length thereof, said cylinder having outwardly extending flanges at one end thereof and a rounded tip at the opposite end; a cylindrical plunger-rod movably located within said hollow cylinder and extending beyond said cylinder at said flanged end; handle means at the end of said plunger-rod extending beyond said cylinder, a magnet forming the end of said plunger-rod opposite said handle means, said plunger-rod having a fixed annular rim located between said magnet and handle means, said rim being of a circumference lesser than said widened central bore and greater than the remainder of the bore of said hollow cylinder, thereby defining the limit of movement of said plunger-rod within said hollow cylinder.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |