US4412393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ballet toe shoe and process of manufacture thereof
Assignee: PNC Bank NA
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Filing: 1981-07-10
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Granted: 1983-11-01
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Expires: 2001-07-10
Abstract
Abstract A ballet dancer's toe dancing ballet shoe is designed and manufactured more simply than conventional ballet toe shoes. A sole supporting shank of the toe shoe has a tip flap at the front thereof which may be folded up to define the front panel of the completed ballet toe shoe. The shank is applied to a male mold member which is inserted into a female mold member cavity and resin is inserted into the space between the mold members for defining a toe box support frame in which the inserted portion of the shank and tip flap are embedded. The shank is comprised of a leather-like material. The completed combination of the shank and toe box support frame are removed from the mold members. A ballet toe shoe upper is fastened to the shank and over the exterior and in the interior, as well, of the toe box support frame. The space between the mold members is greatest toward the interior of the cavity and gradually diminishes toward the exterior of the cavity, thickening and giving greater strength to the front of the toe shoe than to the rear portion of the toe box. The shank and resin combination eliminates intricate processes and skilled labor now required to manufacture toe shoes. At the same time, the desired properties of varying degrees of stiffness of the shoe upper and of proper support for the dancer's foot are maintained.
Inventors
- 👤 Nicholas Terlizzi, Jr.
- 👤 Donald Terlizzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:44
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/12
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
203 words
A shank and toe box support frame combination for a ballet toe shoe, or the like, comprising: a shank for being located in a ballet toe shoe beneath the sole of a wearer of the toe shoe; the shank having a front end; a tip flap located at the front end of the shank; the tip flap being folded up from the portion of the shank beneath the wearer's sole to define a front tip panel of the toe box support frame; the toe box support frame being shaped to define a toe box for a ballet toe shoe for covering over the front portion and toes of a wearer's foot; the toe box support frame having a front end and the tip flap at the front end of the shank being integrated with the support frame for at least in part defining the front end of the support frame; the support frame having an open rear end and having and defining an interior into which the toe and foot of the wearer are placed; the support frame having an exterior; the shank extending rearwardly from the front end of the support frame and extending out the rear end of the support frame.
Claim 2
Dependent Claim
203 words
A shank and toe box support frame combination for a ballet toe shoe, or the like, comprising: a shank for being located in a ballet toe shoe beneath the sole of a wearer of the toe shoe; the shank having a front end; a tip flap located at the front end of the shank; the tip flap being folded up from the portion of the shank beneath the wearer's sole to define a front tip panel of the toe box support frame; the toe box support frame being shaped to define a toe box for a ballet toe shoe for covering over the front portion and toes of a wearer's foot; the toe box support frame having a front end and the tip flap at the front end of the shank being integrated with the support frame for at least in part defining the front end of the support frame; the support frame having an open rear end and having and defining an interior into which the toe and foot of the wearer are placed; the support frame having an exterior; the shank extending rearwardly from the front end of the support frame and extending out the rear end of the support frame.
Claim 3
Dependent Claim
18 words
The combination of claim 1, wherein the support frame is comprised of a resin, or the like, material.
Claim 4
Dependent Claim
40 words
The combination of claim 2, wherein the material of the support frame is more rigid in the vicinity of the front end of the support frame and is relatively more flexible rearwardly of the front end of the support frame.
Claim 5
Dependent Claim
18 words
The combination of claim 2, wherein the shank is comprised of a different material than the support frame.
Claim 6
Dependent Claim
14 words
The combination of claim 4, wherein the shank is comprised of a leather-like material.
Claim 7
Dependent Claim
15 words
The combination of claim 5, wherein the shank is embedded in the support frame material.
Claim 8
Dependent Claim
36 words
The combination of claim 6, wherein the material of the support frame is thicker in the vicinity of the front end of the support frame and is thinner rearwardly of the front of the support frame.
Claim 9
Dependent Claim
29 words
The combination of claim 5, wherein the shank and the tip flap are an integral piece and the tip flap is folded up from the remainder of the shank.
Claim 10
Dependent Claim
27 words
The combination of claim 8, wherein the shank is weakened for defining a foldable section at which the shank is folded up to define the tip flap.
Claim 11
Dependent Claim
29 words
The combination of claim 1, wherein the shank and the tip flap are an integral piece and the tip flap is folded up from the remainder of the shank.
Claim 12
Dependent Claim
27 words
The combination of claim 10, wherein the shank is weakened for defining a foldable section at which the shank is folded up to define the tip flap.
Claim 13
Dependent Claim
14 words
The combination of claim 1, wherein the shank is embedded in the support frame.
Claim 14
Dependent Claim
37 words
The combination of claim 12, wherein the support frame is more rigid in the vicinity of the front end of the support frame and is relatively more flexible rearwardly of the front end of the support frame.
Claim 15
Dependent Claim
37 words
The combination of claim 1, wherein the support frame is more rigid in the vicinity of the front end of the support frame and is relatively more flexible rearwardly of the front end of the support frame.
Claim 16
Dependent Claim
41 words
The combination of claim 14, wherein the support frame is thicker between the exterior and the interior thereof in the vicinity of the front end of the support frame and is thinner rearwardly of the front end of the support frame.
Claim 17
Dependent Claim
58 words
A ballet toe shoe, comprising: the combination of any one of claims 1, 10 or 15, and an upper, the upper comprising a covering layer extending over and around the exterior of the support frame and extending around the periphery of the shank, and the upper extending above the shank and being shaped for surrounding a wearer's foot.
Claim 18
Dependent Claim
58 words
A ballet toe shoe, comprising; the combination of any one of claims 4, 6 and 8, and an upper, the upper comprising a covering layer extending over and around the exterior of the support frame and extending around the periphery of the shank, and the upper extending above the shank and being shaped for surrounding a wearer's foot.
Claim 19
Dependent Claim
16 words
The ballet toe shoe of claim 17, further comprising an outer sole disposed beneath the shank.
Claim 20
Dependent Claim
30 words
The ballet toe shoe in claim 17, wherein the material of the upper also extends into the interior of the support frame for covering the interior of the support frame.
Claim 21
Independent Claim
301 words
A method of making a combination of a toe box support frame and a shank for a ballet toe shoe, or the like, the method comprising: applying a ballet toe shoe shank having a front end, with a foldable tip flap being defined on the front end of the shank, to the toe shoe sole side of a male mold member that is generally in the shape of a toe box of a ballet toe shoe, and the shank being applied to the male mold member so that the tip flap of the shank extends forward of the forward end of the male mold member; inserting the male mold member, forward end first, into the mold cavity of a female mold member which cavity has a profile that generally conforms to the external profile of the male mold member, and the respective profiles of the male and female mold members being shaped so that there is a narrow space defined between the male and the female mold members for receiving a moldable resin material, or the like; the male mold member being inserted far enough for the tip flap at the front of the shank to contact the interior of the female mold member for then folding up the tip flap over the front end of the male mold member, whereby the tip flap is then in position to be at the front tip of the toe box support frame; applying resin in the space between the male and the female mold members and also applying the resin over the tip flap, and allowing the resin to set for thereby defining the toe box support frame and for integrating the shank and the support frame; and removing the toe box support frame with the shank integrated therewith from the mold members.
Claim 22
Independent Claim
301 words
A method of making a combination of a toe box support frame and a shank for a ballet toe shoe, or the like, the method comprising: applying a ballet toe shoe shank having a front end, with a foldable tip flap being defined on the front end of the shank, to the toe shoe sole side of a male mold member that is generally in the shape of a toe box of a ballet toe shoe, and the shank being applied to the male mold member so that the tip flap of the shank extends forward of the forward end of the male mold member; inserting the male mold member, forward end first, into the mold cavity of a female mold member which cavity has a profile that generally conforms to the external profile of the male mold member, and the respective profiles of the male and female mold members being shaped so that there is a narrow space defined between the male and the female mold members for receiving a moldable resin material, or the like; the male mold member being inserted far enough for the tip flap at the front of the shank to contact the interior of the female mold member for then folding up the tip flap over the front end of the male mold member, whereby the tip flap is then in position to be at the front tip of the toe box support frame; applying resin in the space between the male and the female mold members and also applying the resin over the tip flap, and allowing the resin to set for thereby defining the toe box support frame and for integrating the shank and the support frame; and removing the toe box support frame with the shank integrated therewith from the mold members.
Claim 23
Dependent Claim
69 words
The method of claim 20, wherein the profiles of the male and female mold members are respectively so shaped that the space between the mold members is greater near the forward end of the inserted male mold member and diminishes rearwardly, whereby the resin layer is thicker toward the front of the support frame at the tip flap and is thinner away from the front of the support frame.
Claim 24
Dependent Claim
56 words
The method of claim 20, wherein the shank and the tip flap are integrated as a single unit and wherein prior to applying a shank to the male mold member, weakening the shank at the front end thereof at the tip flap for enabling the tip flap to be folded up in the female mold member.
Claim 25
Dependent Claim
13 words
The method of claim 20, wherein the shank is comprised of leather-like material.
Claim 26
Dependent Claim
64 words
A method of making a ballet toe shoe, comprising first make a combination of a toe box support frame and a shank according to the method of claim 20 and thereafter attaching a ballet toe shoe upper to the shank and passing the upper over the exterior of the toe box support frame for defining a foot covering upper of the ballet toe shoe.
Claim 27
Dependent Claim
20 words
The method of claim 24, further comprising also attaching the upper on the interior of the toe box support frame.
Claim 28
Dependent Claim
14 words
The method of claim 24, further comprising attaching an outer sole beneath the shank.
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) | 1986-10-31 | 1987-05-02 | 1987-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-31 | 1991-05-02 | 1991-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-31 | 1995-05-02 | 1995-11-01 | $7700.00 | Window Closed / Lapsed |