US4014331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe barrel with protective plastic cover
Assignee: Individual
•
Filing: 1975-12-30
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Granted: 1977-03-29
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Expires: 1995-12-30
Abstract
Abstract A syringe assembly of the type including a frangible open ended tubular barrel snugly received within a longitudinally slotted tubular body including at least partial end walls between which the barrel is received has its longitudinally slotted tubular body enclosed within a thick walled cylindrical sleeve constructed of translucent plastic material. The sleeve is initially heated to effect its expansion and thereafter telescoped over the longitudinally slotted tubular body of the syringe and allowed to cool so as to shrink tightly about the body to cover the slotted portions thereof from the exterior of the body.
Inventors
- 👤 James E. Head
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:22
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/3129; A61M5/315; A61M5/31565; A61M5/31576; A61M5/31578; A61M5/31581; A61M5/3159; A61M5/31593; A61M5/31595; A61M5/31533; A61M5/31545; A61M5/31548; A61M5/3156
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
105 words
In combination with a syringe assembly of the type including a frangible open ended tubular barrel snugly received within a longitudinally slotted tubular body including at least partial end walls between which said barrel is received, a thick walled cylindrical sleeve constructed of plastic material expandable upon heating and shrinkable upon subsequent cooling, said sleeve being telescoped over and tightly shrunk about said body to cover the slotted portions thereof from the exterior of said body, said sleeve serving to protect said barrel from breakage as a result of impact with an object through said slotted portions and said body against impact with an object.
Claim 2
Dependent Claim
105 words
In combination with a syringe assembly of the type including a frangible open ended tubular barrel snugly received within a longitudinally slotted tubular body including at least partial end walls between which said barrel is received, a thick walled cylindrical sleeve constructed of plastic material expandable upon heating and shrinkable upon subsequent cooling, said sleeve being telescoped over and tightly shrunk about said body to cover the slotted portions thereof from the exterior of said body, said sleeve serving to protect said barrel from breakage as a result of impact with an object through said slotted portions and said body against impact with an object.
Claim 3
Dependent Claim
22 words
The combination of claim 1 wherein said sleeve encloses said body substantially fully throughout its length between the opposite end portions thereof.
Claim 4
Dependent Claim
12 words
The combination of claim 1 wherein said body is constructed of metal.
Claim 5
Dependent Claim
13 words
The combination of claim 1 wherein said sleeve is constructed of translucent material.
Claim 6
Independent Claim
58 words
The method of protecting a frangible syringe barrel snugly enclosed within a longitudinally slotted metal body, said method comprising heating a thick walled plastic cylindrical sleeve to expand the latter, telescoping the heated sleeve over said body to enclose the slotted portions of said body, and allowing said sleeve to cool and thereby shrink tightly about said body.
Claim 7
Independent Claim
58 words
The method of protecting a frangible syringe barrel snugly enclosed within a longitudinally slotted metal body, said method comprising heating a thick walled plastic cylindrical sleeve to expand the latter, telescoping the heated sleeve over said body to enclose the slotted portions of said body, and allowing said sleeve to cool and thereby shrink tightly about said body.
Claim 8
Dependent Claim
36 words
The combination of claim 1 wherein said sleeve encloses said body substantially fully throughout its length between the opposite end portions thereof, said body is constructed of metal, and said sleeve is constructed of translucent material.
References Cited (Backward Citations)
US2417140A
Cited
US2624338A
Cited
US3160156A
Cited
US3406685A
Cited
US3712301A
Cited
US3720211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |