Patent US3965517A successfully refreshed from Google Patents.
US3965517A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for the manufacture of footwear
Assignee: Ro Search Inc
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Filing: 1974-10-18
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Granted: 1976-06-29
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Expires: 1994-10-18
Abstract
Abstract The invention discloses a method and device for the attaching of soles to uppers of footwear which assures the correct seating of the upper on the last prior to the attaching of the sole and allows further to shorten the time needed to bond the sole to the upper.
Inventors
- 👤 Horace Ray Auberry
- 👤 Anton Liebscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:32
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/06; B29D35/061; A; A43; A43D; A43D9/00; B29D35/065
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
The method of manufacture of footwear which includes the steps, in sequence, of placing a prewelted upper upon a last, stringlasting said upper on the last, positioning a lip plate without a side frame in proper relation to the upper, welt and last to position and support the welt into a flat and final position for the finished footwear, locking said lip plate in said position, said last, upper and lip plate constituting a movable unit, and thereafter moving the unit in molding relation to a sole cavity member having a side frame forming the side walls thereof and placing an elastomeric material in the cavity and molding a sole to the welt.
Claim 2
Independent Claim
113 words
The method of manufacture of footwear which includes the steps, in sequence, of placing a prewelted upper upon a last, stringlasting said upper on the last, positioning a lip plate without a side frame in proper relation to the upper, welt and last to position and support the welt into a flat and final position for the finished footwear, locking said lip plate in said position, said last, upper and lip plate constituting a movable unit, and thereafter moving the unit in molding relation to a sole cavity member having a side frame forming the side walls thereof and placing an elastomeric material in the cavity and molding a sole to the welt.
Claim 3
Dependent Claim
41 words
The method of claim 1 further characterized in that said lip plate has movable shank sections and said shank sections are moved inwardly to further tighten the lasting string before the unit is moved in molding relation to the sole cavity.
Claim 4
Dependent Claim
16 words
The method of claim 1 further characterized in that the cavity member is refrigerated before molding.
Claim 5
Independent Claim
113 words
The method of manufacture of footwear which includes the steps, in sequence, of placing a prewelted upper upon a last, lasting said upper on the last while positioning a lip plate without a side frame in proper relation to the upper, welt and last to position and support the welt into a flat and final position for the finished footwear, locking said lip plate in said position, said last, upper and lip plate constituting a movable unit, and thereafter moving the unit into molding relation to a sole cavity member having a side frame forming the side walls thereof and placing elastomeric material in the cavity and molding a sole to the welt.
Claim 6
Independent Claim
113 words
The method of manufacture of footwear which includes the steps, in sequence, of placing a prewelted upper upon a last, lasting said upper on the last while positioning a lip plate without a side frame in proper relation to the upper, welt and last to position and support the welt into a flat and final position for the finished footwear, locking said lip plate in said position, said last, upper and lip plate constituting a movable unit, and thereafter moving the unit into molding relation to a sole cavity member having a side frame forming the side walls thereof and placing elastomeric material in the cavity and molding a sole to the welt.
Claim 7
Dependent Claim
42 words
The method as set forth in claim 4 comprising clamping the outer edge of said welt between said lip plate and the rim of said sole cavity member and maintaining said lip plate spaced from said cavity member while molding said sole.
Claim 8
Dependent Claim
27 words
The method as set forth in claim 5 comprising providing a temperature difference between said lip plate and said cavity member by heating said cavity member only.
Claim 9
Dependent Claim
42 words
The method as set forth in claim 4 comprising moving shank sections of said lip plate in relation to the end sections thereof towards the sole center to further tighten a lasting string before the unit is moved into the molding position.
Claim 10
Dependent Claim
22 words
The method as set forth in claim 4, wherein said cavity member is refrigerated before it is moved into the molding position.
Claim 11
Dependent Claim
20 words
The method as set forth in claim 5, wherein said cavity member is heated during the molding of the sole.
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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |