Patent EP0630592A1 successfully refreshed from Google Patents.
EP0630592A1
Expired / Lapsed
EP
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Sports footwear
Assignee: Global Sports Technologies Inc
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Filing: 1994-06-07
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Granted: —
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Expires: 2014-06-07
Abstract
Abstract Improved sports footwear comprising an insert positioned at least in the heel region, the insert comprising an elastically deformable cellular structure arranged within an elastically deformable air-impermeable casing provided with inner projections on opposing faces, the casing being pneumatically connected to controllable means, rigid with the footwear, for varying the air pressure within the casing so as to modify the elastic characteristics of the insert, each projection on one face being connected to a projection on the other face.
Inventors
- 👤 King Chee Wong
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 02:24
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14; A43B13/18; A43B13/20; A43B13/206; A43B1/00; A43B1/0009; A43B13/141; A43B13/203; A43B21/00; A43B21/24; A43B21/26; A43B21/28
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
56 words
Improved sports footwear comprising at least one insert positioned at least in the heel region, said insert comprising an air-impermeable casing of flexible material and containing elastically deformable means, characterised in that means are connected to said casing for varying the air pressure within said casing, so as to modify the elastic characteristics of the insert.
Claim 2
Dependent Claim
41 words
Sports footwear as claimed in claim 1, characterised in that said means for varying the air pressure within the insert comprise pumping means associated with intake and delivery valve means for increasing said pressure, and bleed means for decreasing said pressure.
Claim 3
Dependent Claim
30 words
Sports footwear as claimed in claim 2, characterised in that the pumping means and the bleed means are both positioned on the outside of the footwear and are rigid therewith.
Claim 4
Dependent Claim
28 words
Sports footwear as claimed in claim 3, characterised in that the pumping means and the bleed means are contained within an elastically deformable cover rigid with the footwear.
Claim 5
Dependent Claim
31 words
Sports footwear as claimed in claim 2, characterised in that the pumping means comprise a bellows having two openings, one containing an intake valve and the other containing a delivery valve.
Claim 6
Dependent Claim
41 words
Sports footwear as claimed in claim 5, characterised in that the delivery valve is a lip-type valve and is positioned within a block to which the bellows is connected, this block also containing the bleed means downstream of said delivery valve.
Claim 7
Dependent Claim
17 words
Sports footwear as claimed in claim 6, characterised in that the bleed means comprise a pusher-type valve.
Claim 8
Dependent Claim
24 words
Sports footwear as claimed in claim 1, characterised in that the elastically deformable means are represented by a cellular structure, preferably of honeycomb type.
Claim 9
Dependent Claim
43 words
Sports footwear as claimed in claim 8, characterised in that the air-impermeable casing of flexible material is formed from at least two parts each comprising an integral appendix which when joined together form a tube for air passage from and to the insert.
Claim 10
Dependent Claim
36 words
Sports footwear as claimed in claim 9, characterised in that said two parts comprise, in coinciding positions, hollow projections which are directed towards the interior of the casing and are connected together at their inner ends.
Claim 11
Dependent Claim
27 words
Sports footwear as claimed in claim 10, characterised in that at least one pair of joined-together hollow projections is arranged within a cell of the cellular structure.
Claim 12
Dependent Claim
23 words
Sports footwear as claimed in claim 8, characterised in that the cellular structure is enclosed within, but not connected to, the air-impermeable casing.
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