US3664495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking capsule
Assignee: Parke Davis and Co LLC
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Filing: 1970-12-21
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Granted: 1972-05-23
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Expires: 1990-12-21
Abstract
Abstract An economical locking capsule is provided having telescopically joinable cap and body parts adapted to be joined together in a prelocking position and optionally in a more fully joined position. The capsule, for packaging of medicaments and the like, is produced by the dip-molding technic on conventional automatic machinery and can be printed, filled, etc., using standard equipment.
Inventors
- 👤 Richard J Graham
- 👤 Ralph E Mottin
- 👤 Oscar B Noren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:18
CPC Classifications
A; A61; A61J; A61J3/00; A61J3/07; A61J3/071; Y; Y10; Y10S; Y10S220/00; Y10S220/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
249 words
A hard shell pharmaceutical locking capsule having cylindrical, telescopically joinable, coaxial cap and body parts each having a side wall, an open end and a closed end, the cap and body being adapted to be mutually joined in a first prelocking position and optionally in another more completely joined position, the cap and body side walls each having an inner surface and an outer surface and the cap side wall also having a pair of diametrically opposed integral indents extending radially inwardly from the sides of the wall, the profile of each indent including two indent slopes separated at a distance of about 0.030 to 0.040 inch by an indent flat, the slopes joining the flat at an angle of about 8*-12*, the diametral spacing of the indents being less than the outside diameter of the open end of the body by an approximate constriction distance differing according to capsule size, as set forth below, such that the body can enter into the cap to the pre-locking position and yet the cap and body at this position mutually engage in an elastic frictional fit, the center line of the indents being located axially from the inner surface of the closed end of the cap at a distance permitting optimum wall flexibility and pre-locking strength, the location differing according to capsule size approximately as follows: Capsule Size Constriction, Indent Location, inches inches 0 .0068 .265 1 .0054 .250 2 .0047 .235 3 .0045 .225 4 .0040 .210 5 .0039 .140
Claim 2
Dependent Claim
249 words
A hard shell pharmaceutical locking capsule having cylindrical, telescopically joinable, coaxial cap and body parts each having a side wall, an open end and a closed end, the cap and body being adapted to be mutually joined in a first prelocking position and optionally in another more completely joined position, the cap and body side walls each having an inner surface and an outer surface and the cap side wall also having a pair of diametrically opposed integral indents extending radially inwardly from the sides of the wall, the profile of each indent including two indent slopes separated at a distance of about 0.030 to 0.040 inch by an indent flat, the slopes joining the flat at an angle of about 8*-12*, the diametral spacing of the indents being less than the outside diameter of the open end of the body by an approximate constriction distance differing according to capsule size, as set forth below, such that the body can enter into the cap to the pre-locking position and yet the cap and body at this position mutually engage in an elastic frictional fit, the center line of the indents being located axially from the inner surface of the closed end of the cap at a distance permitting optimum wall flexibility and pre-locking strength, the location differing according to capsule size approximately as follows: Capsule Size Constriction, Indent Location, inches inches 0 .0068 .265 1 .0054 .250 2 .0047 .235 3 .0045 .225 4 .0040 .210 5 .0039 .140
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |