US4595376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magazine containing retention pins for the treatment of broken and undermined teeth
Assignee: Individual
•
Filing: 1985-05-24
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Granted: 1986-06-17
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Expires: 2005-05-24
Abstract
Abstract A magazine containing a plurality of retention pins for treating broken and undermined teeth which comprises a handle with a head fixed thereto at an obtuse angle. The handle is provided with a device for advancing a bar consisting of a series of retention pins separated by pre-determined breaking point, formed as portion of reduced thickness between pins. The head is provided with a triangularly formed spring for retaining the bar by capturing the portion of reduced thickness between pins. The pins are preferably longitudinally ribbed. The magazine, which acts also as handling tool, facilitates the storage and insertion of retention pins. By providing a plurality of pins in the form of a bar, waste is eliminated.
Inventors
- 👤 Harald E. Nordin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:56
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/30; A61C5/35
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
A magazine for housing a plurality of retention pins for the treatment of broken or undermined teeth, said retention pins being arranged in the form of a bar and separated by pre-determined break points between successive retention pins, said magazine having means for advancing said bar and a handle, said handle having said bar advancing means fixed thereto and a head fixed thereto at an obtuse angle, said head including a means for retaining said retention pins.
Claim 2
Dependent Claim
77 words
A magazine for housing a plurality of retention pins for the treatment of broken or undermined teeth, said retention pins being arranged in the form of a bar and separated by pre-determined break points between successive retention pins, said magazine having means for advancing said bar and a handle, said handle having said bar advancing means fixed thereto and a head fixed thereto at an obtuse angle, said head including a means for retaining said retention pins.
Claim 3
Dependent Claim
71 words
The magazine according to claim 1, wherein said handle has notches separated by a distance corresponding to the distance between consecutive break points and a slot, and wherein the bar advancing means comprises a slider which encompasses the handle and which has a spring part; said spring part being adapted to lock onto said notches, and wherein said slider has a lug adapted to glide in said slot in the handle.
Claim 4
Dependent Claim
47 words
The magazine according to claim 1, wherein said means for retaining the retention pins comprises a triangularly formed open spring operable to snap into a break point, said break points comprising portions of reduced thickness between adjacent pins, and wherein said head is made of two parts.
Claim 5
Dependent Claim
26 words
The magazine according to claim 1, wherein the handle and the bar advancing means are fabricated as a unit, adapted to be plugged onto the head.
Claim 6
Dependent Claim
15 words
The magazine according to claim 1, wherein said retention pins are provided with longitudinal ribbings.
Claim 7
Dependent Claim
14 words
The magazine according to claim 1, wherein said retention pins are made of titanium.
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) | 1989-06-16 | 1989-12-16 | 1990-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-16 | 1993-12-16 | 1994-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-16 | 1997-12-16 | 1998-06-17 | $7700.00 | Window Closed / Lapsed |