§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US4196167A Expired / Lapsed US ⏱️ 0.0 years remaining

Drug detection device

Assignee: California Medical Developments Inc
•
Filing: 1978-12-26
•
Granted: 1980-04-01
•
Expires: 1998-12-26
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The drug detection device which is composed of a pair of members interconnected together to form an internal enclosed chamber. An elongated swab having an absorbent tip is located within the internal enclosed chamber. One of the members of the housing has attached a pair of separate compartments which are interconnected by a frangible seal and further being interconnected to the internal chamber by a frangible seal. Within each of these compartments there is to be located a different substance and upon breaking of the frangible seal between the compartments, the substances within these compartments are to be intermixed. Upon the breaking of the frangible seal to the internal chamber, the tip of the swab will then become in contact with the intermixed substances. The other member of the housing has attached at its closed end a third compartment and within this third compartment is to be located a third substance. After the tip of the swab has been placed in contact with the drug contact area and caused to come in contact with the first two substances, the tip of the swab is then placed adjacent the third compartment and upon breaking of its frangible seal, the tip of the swab will then be contacted by the third substance. If the tip of the swab was placed in contact with a certain family of drugs, the tip of the swab will then change color. Prior to use of the device of this invention, the pair of members of the device are sealingly closed so as to maintain the device in an uncontaminated condition prior to use.

Inventors

  • 👤 C. Eric Olsen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 17:36
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/94; G01N33/948; B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5029; B01L3/505; G01N31/00; G01N31/22; B01L2300/00; B01L2300/08; B01L2300/0861; B01L2300/0867; B01L2400/00; B01L2400/04; B01L2400/0475; B01L2400/0481; B01L2400/06; B01L2400/0677; B01L2400/0683

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 303 words
A drug detection device comprising: a housing having an internal elongated chamber constructed of a first member and a second member, said first member being attachable to said second member by a sealing means forming said internal chamber, said sealing means being removable permitting separation of said first and second members; a swab located within said internal chamber with said first member being attached to said second member; a first compartment attached to said first member at its closed end, a first frangible seal connecting said internal chamber and said first compartment, said first compartment being adapted to contain a quantity of a first substance; a second compartment attached to said first compartment, a second frangible seal connecting said first compartment and said second compartment, said second compartment being adapted to contain a quantity of a second substance; a third compartment attached to said second member at its closed end, a third frangible seal connecting said internal chamber and said third compartment, said third compartment being adapted to contain a quantity of a third substance; and whereby said sealing means can be broken permitting removal of said swab and after use of such is to be replaced within said internal chamber of said first member, said second frangible seal is to be broken causing mixing of said first and second substance, said first frangible seal is then to be broken causing contact of the intermixed substance of the intermixed first and second substances with the tip of said swab, said swab is to be removed from said first member and located within said second member, said third frangible seal is then to be broken causing contact of the tip of said swab by said third substance, upon a certain drug being present on the tip of said swab the tip will change color.
Claim 2
Dependent Claim 303 words
A drug detection device comprising: a housing having an internal elongated chamber constructed of a first member and a second member, said first member being attachable to said second member by a sealing means forming said internal chamber, said sealing means being removable permitting separation of said first and second members; a swab located within said internal chamber with said first member being attached to said second member; a first compartment attached to said first member at its closed end, a first frangible seal connecting said internal chamber and said first compartment, said first compartment being adapted to contain a quantity of a first substance; a second compartment attached to said first compartment, a second frangible seal connecting said first compartment and said second compartment, said second compartment being adapted to contain a quantity of a second substance; a third compartment attached to said second member at its closed end, a third frangible seal connecting said internal chamber and said third compartment, said third compartment being adapted to contain a quantity of a third substance; and whereby said sealing means can be broken permitting removal of said swab and after use of such is to be replaced within said internal chamber of said first member, said second frangible seal is to be broken causing mixing of said first and second substance, said first frangible seal is then to be broken causing contact of the intermixed substance of the intermixed first and second substances with the tip of said swab, said swab is to be removed from said first member and located within said second member, said third frangible seal is then to be broken causing contact of the tip of said swab by said third substance, upon a certain drug being present on the tip of said swab the tip will change color.
Claim 3
Dependent Claim 15 words
The drug detection device as defined in claim 1 wherein: said housing being substantially cylindrical.
Claim 4
Dependent Claim 24 words
The drug detection device as defined in claim 2 wherein: said first and second members being telescopingly interconnected together when such are interconnected together.
Claim 5
Dependent Claim 18 words
The drug detection device as defined in claim 3 wherein: said housing being constructed of a transparent material.

References Cited (Backward Citations)

US3579303A Cited
US3768979A Cited
US3715189A Cited
US3876503A Cited
US3913564A Cited
US3939044A Cited
US4014748A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-04-01 1983-10-01 1984-04-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-04-01 1987-10-01 1988-04-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-04-01 1991-10-01 1992-04-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag