Patent US3780437A successfully refreshed from Google Patents.
US3780437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic bracket
Assignee: Ormco Corp
•
Filing: 1972-03-02
•
Granted: 1973-12-25
•
Expires: 1992-03-02
Abstract
Abstract An arch wire is held in a slot in a bracket body by a finger of a hook-like follower having a camming portion adapted to push the arch wire into the slot. The finger has a rounded labial surface blending with a labial portion of a head of the body and has wedging surfaces adapted to move the follower to its open position. A snap ring engages somewhat abrupt shoulders on the follower to strongly hold the follower in its closed position, and engages less abrupt shoulders on the follower to weakly hold the follower in its open position. The body has a saddle horn portion to connect elastics to the body, and has notches for receiving auxiliary equipment.
Inventors
- 👤 A Wildman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:32
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
124 words
In an improved orthodontic bracket, a rigid auxiliary collar of a predetermined length having an opening therethrough and having a shallow groove, a body having a base and head portion having an arch wire receiving groove open at the side thereof more remote from the base, the collar being adapted to be passed over the head portion and engage the side of an arch wire in the groove adjacent the base at points spaced substantially beyond the ends of the groove, the body having stop portions holding the collar in a position in which the portions of the collar beyond the ends of the groove are substantially flush with the bottom of the groove, and means for retaining the arch wire in the groove.
Claim 2
Dependent Claim
124 words
In an improved orthodontic bracket, a rigid auxiliary collar of a predetermined length having an opening therethrough and having a shallow groove, a body having a base and head portion having an arch wire receiving groove open at the side thereof more remote from the base, the collar being adapted to be passed over the head portion and engage the side of an arch wire in the groove adjacent the base at points spaced substantially beyond the ends of the groove, the body having stop portions holding the collar in a position in which the portions of the collar beyond the ends of the groove are substantially flush with the bottom of the groove, and means for retaining the arch wire in the groove.
Claim 3
Dependent Claim
12 words
The improved orthodontic bracket of claim 1 wherein the collar is C-shaped.
Claim 4
Dependent Claim
123 words
In combination, a body having a guideway and a retaining opening open at one side, a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the opening and a latching portion, and a snap ring detenting spring mounted on the body, the locking member having shoulder portions engaged by the detenting spring for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body, the locking member also being provided with sloping camming portions engagable by the detenting spring to hold the locking member in an open position with a force substantially less than said predetermined force.
Claim 5
Dependent Claim
123 words
In combination, a body having a guideway and a retaining opening open at one side, a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the opening and a latching portion, and a snap ring detenting spring mounted on the body, the locking member having shoulder portions engaged by the detenting spring for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body, the locking member also being provided with sloping camming portions engagable by the detenting spring to hold the locking member in an open position with a force substantially less than said predetermined force.
Claim 6
Dependent Claim
175 words
In combination, a body having a guideway and a retaining opening open at one side, a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the opening and a latching portion, and a snap ring detenting spring mounted on the body, the locking member and the detenting spring having firsT interlocking portions for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body, the locking member and the detenting spring also being provided with second interlocking portions for holding the locking member in an open position with a force substantially less than said predetermined force, the locking member having a first pair of notches defining the first interlocking portions and a second pair of notches defining the second interlocking portions, the first pair of notches having sides with a predetermined slope and the second pair of notches having sides with a slope substantially less than said predetermined slope.
Claim 7
Dependent Claim
175 words
In combination, a body having a guideway and a retaining opening open at one side, a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the opening and a latching portion, and a snap ring detenting spring mounted on the body, the locking member and the detenting spring having firsT interlocking portions for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body, the locking member and the detenting spring also being provided with second interlocking portions for holding the locking member in an open position with a force substantially less than said predetermined force, the locking member having a first pair of notches defining the first interlocking portions and a second pair of notches defining the second interlocking portions, the first pair of notches having sides with a predetermined slope and the second pair of notches having sides with a slope substantially less than said predetermined slope.
Claim 8
Dependent Claim
150 words
In combination, a body having a guideway and a retaining opening open at one side, a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the opening and a latching portion, and a snap ring detenting spring mounted on the body, the locking member and the detenting spring having first interlocking shoulder portions for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body, the locking member and the detenting spring also being provided with second interlocking cam portions for holding the locking member in an open position with a force substantially less than said predetermined force, the end portions of the spring extending over one end of the guideway and being bevelled to facilitate insertion of the locking member into the guideway.
Claim 9
Dependent Claim
150 words
In combination, a body having a guideway and a retaining opening open at one side, a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the opening and a latching portion, and a snap ring detenting spring mounted on the body, the locking member and the detenting spring having first interlocking shoulder portions for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body, the locking member and the detenting spring also being provided with second interlocking cam portions for holding the locking member in an open position with a force substantially less than said predetermined force, the end portions of the spring extending over one end of the guideway and being bevelled to facilitate insertion of the locking member into the guideway.
Claim 10
Dependent Claim
134 words
In combination, an orthodontic arch wire receiving bracket including a body having a guideway and an arch wire receiving groove open at one side, a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the groove and a latching portion, and a detenting spring mounted on the body, the locking member and the detenting spring having interlocking shoulder and detent portions for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body, the locking member and the detenting spring also being provided with interlocking sloping cam and detent portions for holding the locking member in an open position with a force substantially less than said predetermined force.
Claim 11
Dependent Claim
134 words
In combination, an orthodontic arch wire receiving bracket including a body having a guideway and an arch wire receiving groove open at one side, a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the groove and a latching portion, and a detenting spring mounted on the body, the locking member and the detenting spring having interlocking shoulder and detent portions for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body, the locking member and the detenting spring also being provided with interlocking sloping cam and detent portions for holding the locking member in an open position with a force substantially less than said predetermined force.
Claim 12
Dependent Claim
27 words
The combination of claim 6 wherein the locking member is generally U-shaped with one arm forming the slide portion and the other arm forming the locking portion.
Claim 13
Dependent Claim
24 words
The combination of claim 7 wherein said other arm has a camming end portion adapted to push the arch wire fully into the groove.
Claim 14
Dependent Claim
30 words
The combination of claim 7 wherein said other arm covers at least the major portion of the end of the body when the locking member is in its closed position.
Claim 15
Dependent Claim
13 words
The combination of claim 9 wherein said other arm is button-like in shape.
Claim 16
Dependent Claim
21 words
The combination of claim 5 including an auxiliary collar on the body and engaging the arch wire outboard of the body.
Claim 17
Dependent Claim
22 words
The combination of claim 11 wherein the collar is C-shaped and the body has notches receiving the end portions of the collar.
Claim 18
Dependent Claim
17 words
The combination of claim 11 wherein the collar is retained on the body by the arch wire.
References Cited (Backward Citations)
US3578744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |