US4240427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle with protector
Assignee: Allegiance Corp
•
Filing: 1978-10-23
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Granted: 1980-12-23
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Expires: 1998-10-23
Abstract
Abstract An interfitting rib structure on a hypodermic needle and its protector which have beveled ends to rotationally shift the needle and protector into proper alignment during high speed assembly.
Inventors
- 👤 David S. Akhavi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:15
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3202
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
71 words
A needle hub and protector with interfitting ribs, wherein the improvement comprises: at least one rib on the needle hub having a forward end with a rotational shifting surface; and at least one rib on the protector having a rearward end with a rotational shifting surface, whereby said surfaces can engage each other during axial sliding of the needle hub into the protector and automatically prevent rib abutment jamming during assembly.
Claim 2
Dependent Claim
71 words
A needle hub and protector with interfitting ribs, wherein the improvement comprises: at least one rib on the needle hub having a forward end with a rotational shifting surface; and at least one rib on the protector having a rearward end with a rotational shifting surface, whereby said surfaces can engage each other during axial sliding of the needle hub into the protector and automatically prevent rib abutment jamming during assembly.
Claim 3
Dependent Claim
16 words
A needle hub and protector as set forth in claim 1, wherein the surfaces are beveled.
Claim 4
Dependent Claim
19 words
A needle hub and protector as set forth in claim 2, wherein the surfaces each include two side bevels.
Claim 5
Dependent Claim
29 words
A needle hub and protector as set forth in claim 1, wherein at least one surface has a lead-in ramp for laterally positioning the needle hub in the protector.
Claim 6
Dependent Claim
20 words
A needle hub and protector as set forth in claim 4, wherein the lead-in ramp is on the needle hub.
Claim 7
Dependent Claim
26 words
A needle hub and protector as set forth in claim 1, wherein the needle hub and protector each have a series of beveled rotational shifting surfaces.
Claim 8
Dependent Claim
58 words
A needle hub with an external rib for interfitting with a protector or the like, wherein the improvement comprises: said external rib has a forward end with a beveled rotational shifting surface, whereby said beveled surface is adapted to automatically prevent rib abutment jamming during axial assembly of the needle hub into a protector with an internal rib.
Claim 9
Dependent Claim
58 words
A needle hub with an external rib for interfitting with a protector or the like, wherein the improvement comprises: said external rib has a forward end with a beveled rotational shifting surface, whereby said beveled surface is adapted to automatically prevent rib abutment jamming during axial assembly of the needle hub into a protector with an internal rib.
Claim 10
Dependent Claim
58 words
A protector with an internal rib for interfitting with a needle hub or the like, wherein the improvement comprises: said internal rib has a rearward end with a beveled rotational shifting surface, whereby said beveled surface is adapted to automatically prevent rib abutment jamming during axial assembly of a needle hub with an external rib into such protector.
Claim 11
Dependent Claim
58 words
A protector with an internal rib for interfitting with a needle hub or the like, wherein the improvement comprises: said internal rib has a rearward end with a beveled rotational shifting surface, whereby said beveled surface is adapted to automatically prevent rib abutment jamming during axial assembly of a needle hub with an external rib into such protector.
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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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |