US4404757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heel filler and assembly for boots
Assignee: Swenco Ltd
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Filing: 1981-05-13
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Granted: 1983-09-20
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Expires: 2001-05-13
Abstract
Abstract Improvements in protective footwear, including work boots or shoes, are disclosed. The improvements include a new heel filler for the heel portion of the sole, the filler being formed of a light-weight moulded plastic material. The heel filler may be easily located in the heel area prior to the final boot forming step. When a shank or protective mid-sole is to be used the appropriate element is provided with a slot or other locating device which may be secured to a cooperating projection on the heel filler so that the two components may be positively located together prior to the final boot forming step. The boot is strengthened by providing a longitudinally extending rib or ribs in the arch region of the shank or mid-sole. The boot is less expensive to produce because there is less possible wear or damage in the production equipment. In addition there are fewer production rejects and the resulting boot is stronger than prior art boots.
Inventors
- 👤 Henry D. Sweeny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:09
CPC Classifications
A; A43; A43B; A43B23/00; A43B23/22; A43B7/00; A43B7/32
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
85 words
A heel filler for location in the heel portion of a boot or shoe, said heel filler comprising a block of molded plastics material and having a top surface, a bottom surface, side walls, a forward wall and a rearward wall, said heel filler having a shank or protective mid-sole locating member in the form of an elongated, longitudinally extending rib projecting upwardly from said top surface and being provided with fixing means for positively fixing said block in the material of said heel portion.
Claim 2
Dependent Claim
85 words
A heel filler for location in the heel portion of a boot or shoe, said heel filler comprising a block of molded plastics material and having a top surface, a bottom surface, side walls, a forward wall and a rearward wall, said heel filler having a shank or protective mid-sole locating member in the form of an elongated, longitudinally extending rib projecting upwardly from said top surface and being provided with fixing means for positively fixing said block in the material of said heel portion.
Claim 3
Dependent Claim
85 words
A heel filler for location in the heel portion of a boot or shoe, said heel filler comprising a block of molded plastics material and having a top surface, a bottom surface, side walls, a forward wall and a rearward wall, said heel filler having a shank or protective mid-sole locating member in the form of an elongated, transversely extending rib projecting upwardly from said top surface and being provided with fixing means for positively fixing said block in the material of said heel portion.
Claim 4
Dependent Claim
85 words
A heel filler for location in the heel portion of a boot or shoe, said heel filler comprising a block of molded plastics material and having a top surface, a bottom surface, side walls, a forward wall and a rearward wall, said heel filler having a shank or protective mid-sole locating member in the form of an elongated, transversely extending rib projecting upwardly from said top surface and being provided with fixing means for positively fixing said block in the material of said heel portion.
Claim 5
Dependent Claim
85 words
A heel filler for location in the heel portion of a boot or shoe, said heel filler comprising a block of molded plastics material and having a top surface, a bottom surface, side walls, a forward wall and a rearward wall, said heel filler having a shank or protective mid-sole locating member in the form of a plurality of circular projections projecting upwardly from said top surface and being provided with fixing means for positively fixing said block in the material of said heel portion.
Claim 6
Dependent Claim
85 words
A heel filler for location in the heel portion of a boot or shoe, said heel filler comprising a block of molded plastics material and having a top surface, a bottom surface, side walls, a forward wall and a rearward wall, said heel filler having a shank or protective mid-sole locating member in the form of a plurality of circular projections projecting upwardly from said top surface and being provided with fixing means for positively fixing said block in the material of said heel portion.
Claim 7
Dependent Claim
36 words
The heel filler of claim 1 including a recess in said top surface opening towards said front wall for receiving one end of a shank therein, said elongated, longitudinally extending rib projecting upwardly within said recess.
Claim 8
Dependent Claim
26 words
The heel filler of claim 1 and including a shoulder portion at a level below said top surface and extending along said side and rearward walls.
Claim 9
Dependent Claim
54 words
The heel filler of claim 4 and including a shoulder portion at a level below said top surface and extending along said side and rearward walls, said shoulder portion being coplanar with the bottom surface of said recess and being separated from said recess by longitudinally extending ribs running parallel to said side walls.
Claim 10
Dependent Claim
27 words
The heel filler of claim 1 wherein said fixing means includes a plurality of bores extending through said block from said top surface to said bottom surface.
Claim 11
Dependent Claim
22 words
The heel filler of claim 1 wherein said fixing means includes a plurality of conical projections extending downwardly from said bottom surface.
Claim 12
Dependent Claim
62 words
A heel filler for location in the heel portion of a boot or shoe, said heel filler comprising a block of molded plastics material having a top surface, a bottom surface, side walls, a forward wall and a rearward wall and having a shank or protective mid-sole locating member in the form of an elongated rib projecting upwardly from said top surface.
Claim 13
Dependent Claim
62 words
A heel filler for location in the heel portion of a boot or shoe, said heel filler comprising a block of molded plastics material having a top surface, a bottom surface, side walls, a forward wall and a rearward wall and having a shank or protective mid-sole locating member in the form of an elongated rib projecting upwardly from said top surface.
Claim 14
Dependent Claim
80 words
In combination a heel filler and shank assembly for location in the heel and arch portions respectively of a boot or shoe, said heel filler comprising a block of moulded plastics material having a top surface, a bottom surface, side walls, a forward wall and a rearward wall and a shank locating member projecting upwardly from said top surface, and said shank including an elongated member having opening means therethrough at one end thereof for attachment to said locating means.
Claim 15
Dependent Claim
80 words
In combination a heel filler and shank assembly for location in the heel and arch portions respectively of a boot or shoe, said heel filler comprising a block of moulded plastics material having a top surface, a bottom surface, side walls, a forward wall and a rearward wall and a shank locating member projecting upwardly from said top surface, and said shank including an elongated member having opening means therethrough at one end thereof for attachment to said locating means.
Claim 16
Dependent Claim
22 words
The combination of claim 10 wherein said shank is provided with generally central, longitudinally extending and downwardly directed reinforcing rib means therein.
Claim 17
Dependent Claim
34 words
The combination of claim 10 or 11 wherein said locating member comprises an elongated, longitudinally extending rib and said opening means includes an elongated, longitudinally extending slot in said one end of said shank.
Claim 18
Dependent Claim
34 words
The combination of claim 10 or 11 wherein said locating member comprises an elongated, transversely extending rib and said opening means includes an elongated transversely extending slot in said one end of said shank.
Claim 19
Dependent Claim
34 words
The combination of claim 10 or 11 wherein said locating member comprises a plurality of circular projections and said opening means includes a plurality of circular holes in said one end of said shank.
Claim 20
Dependent Claim
60 words
The combination of claim 10 or 11 including a recess in said top surface opening towards said front wall for receiving said one end of said shank therein, and wherein said locating member comprises an elongated, longitudinally extending rib centrally positioned within said recess, said opening means including a central, longitudinally extending slot in said one end of said shank.
Claim 21
Dependent Claim
88 words
In combination a heel filler and protective mid-sole for location in the heel and sole portions respectively of a boot or shoe, said heel filler comprising a block of moulded plastics material having a top surface, a bottom surface, side walls, a forward wall and a rearward wall and mid-sole locating member projecting upwardly from said top surface, and said mid-sole including a generally smooth plate conforming to the shape of said sole, having opening means in the heel area thereof for cooperating attachment to said locating member.
Claim 22
Dependent Claim
88 words
In combination a heel filler and protective mid-sole for location in the heel and sole portions respectively of a boot or shoe, said heel filler comprising a block of moulded plastics material having a top surface, a bottom surface, side walls, a forward wall and a rearward wall and mid-sole locating member projecting upwardly from said top surface, and said mid-sole including a generally smooth plate conforming to the shape of said sole, having opening means in the heel area thereof for cooperating attachment to said locating member.
Claim 23
Dependent Claim
26 words
The combination of claim 16 wherein said mid-sole is provided with generally central, longitudinally extending and downwardly directed reinforcing rib means in the arch area thereof.
Claim 24
Dependent Claim
34 words
The combination of claim 16 or 17 wherein said locating member comprises an elongated, longitudinally extending rib and said opening means includes an elongated, longitudinally extending slot in said one end of said mid-sole.
Claim 25
Dependent Claim
34 words
The combination of claim 16 or 17 wherein said locating member comprises an elongated, transversely extending rib and said opening means includes an elongated, transversely extending slot in said one end of said mid-sole.
Claim 26
Dependent Claim
34 words
The combination of claim 16 or 17 wherein said locating member comprises a plurality of circular projections and said opening means includes a plurality of circular holes in said one end of said mid-sole.
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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) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |