US4014114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spike cluster
Assignee: Three Line Research and Development Co Inc
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Filing: 1975-11-28
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Granted: 1977-03-29
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Expires: 1995-11-28
Abstract
Abstract A spike cluster adapted for attachment to the bottom of an athletic shoe includes a body having a concavity in its upper face with a rim at the periphery of the upper face surrounding the concavity. Means are provided on the upper face of the body for attachment thereof to the bottom of a shoe. A plurality of spikes are located near the periphery of the lower face of the body and extend downwardly therefrom. Each spike has a vertical bore therein, open at the bottom and acting to provide improved traction, particularly on wet surfaces. A protrusion on the lower face within the area bounded by the spikes also extends below the lower face. The cluster may be secured to the bottom of an athletic shoe with the rim providing a clamping surface around the upper margin of the cluster for frictional engagement with the bottom of the shoe. Thus, movement of the cluster relative to the shoe under the stress of use is resisted. The protrusion acts as a shedder to prevent accumulation of dirt between the spikes.
Inventors
- 👤 Ulice A. Jordan
- 👤 Governor V. Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:23
CPC Classifications
A; A43; A43C; A43C15/00; A43C15/16; A43C15/162
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
58 words
A spike cluster adapted for attachment to the bottom of an athletic shoe, said cluster comprising a body portion, means on the body portion for attachment thereof to the bottom of a shoe, and a plurality of spikes extending downwardly from said body portion, each spike having a vertical bore therein open at the bottom of said spike.
Claim 2
Dependent Claim
58 words
A spike cluster adapted for attachment to the bottom of an athletic shoe, said cluster comprising a body portion, means on the body portion for attachment thereof to the bottom of a shoe, and a plurality of spikes extending downwardly from said body portion, each spike having a vertical bore therein open at the bottom of said spike.
Claim 3
Dependent Claim
23 words
The spike cluster of claim 1 wherein said bores are closed at their tops and extend substantially the full lengths of the spikes.
Claim 4
Dependent Claim
38 words
The spike cluster of claim 1 further comprising four spikes spaced at 90° intervals about the lower face of said body portion, there being two pairs of spikes in two diametrical planes at right angles to each other.
Claim 5
Dependent Claim
43 words
The spike cluster of claim 3 further comprising two ridges extending down from the lower face of said body portion, one ridge extending between one pair and the other ridge extending between the other pair of spikes, said ridges forming a cruciform shedder.
Claim 6
Dependent Claim
14 words
The spike cluster of claim 4 wherein said cluster is molded in one piece.
Claim 7
Dependent Claim
46 words
The spike cluster of claim 1 wherein the means for attachment of the body portion to a shoe further comprises a screw centrally located of and extending upwardly from the body portion adapted to be threaded in a tapped hole in the bottom of the shoe.
Claim 8
Dependent Claim
30 words
The spike cluster of claim 1 further comprising a dome shaped protrusion extending downwardly from the lower face of said body portion and having its outer boundary intersecting said spikes.
Claim 9
Dependent Claim
32 words
The spike cluster of claim 6 wherein the body portion and spikes are molded of plastic and said screw is made of metal and has a head embedded in said body portion.
Claim 10
Dependent Claim
105 words
A spike cluster adapted for attachment to the bottom of an athletic shoe, said cluster comprising a body portion, means on the body portion for attachment thereof to the bottom of a shoe, and a plurality of spikes extending downwardly from said body portion, each spike having a vertical bore therein which is closed at the top and open at the bottom and which extends substantially the full length of the spike, each spike being tapered with its end of least dimension being at the bottom, the width dimension of the bore being approximately half the width dimension of the spike at the bottom end.
Claim 11
Dependent Claim
105 words
A spike cluster adapted for attachment to the bottom of an athletic shoe, said cluster comprising a body portion, means on the body portion for attachment thereof to the bottom of a shoe, and a plurality of spikes extending downwardly from said body portion, each spike having a vertical bore therein which is closed at the top and open at the bottom and which extends substantially the full length of the spike, each spike being tapered with its end of least dimension being at the bottom, the width dimension of the bore being approximately half the width dimension of the spike at the bottom end.
Claim 12
Dependent Claim
103 words
A spike cluster adapted for attachment to the bottom of an athletic shoe, said cluster comprising a body portion, means on the body portion for attachment thereof to the bottom of a shoe, and a plurality of spikes extending downwardly from said body portion, said spikes being frustrum in shape with the end of least diameter at the bottom, each spike having a vertical bore therein open at the bottom and closed at the top, said bore extending substantially the full length of the spike and the diameter of the bore being approximately half the diameter of the bottom end of the spike.
Claim 13
Dependent Claim
103 words
A spike cluster adapted for attachment to the bottom of an athletic shoe, said cluster comprising a body portion, means on the body portion for attachment thereof to the bottom of a shoe, and a plurality of spikes extending downwardly from said body portion, said spikes being frustrum in shape with the end of least diameter at the bottom, each spike having a vertical bore therein open at the bottom and closed at the top, said bore extending substantially the full length of the spike and the diameter of the bore being approximately half the diameter of the bottom end of the spike.
Claim 14
Dependent Claim
131 words
A spike cluster adapted for attachment to the bottom of an athletic shoe, said cluster comprising a body portion, means on the body portion for attachment thereof to the bottom of a shoe, and a plurality of spikes extending downwardly from said body portion, each spike having a vertical bore therein open at the bottom of said spike, said body portion having a concavity in its upper face with a rim at the periphery of said upper face surrounding the concavity, said attachment means extending upwardly from said upper face, said spikes being located near the periphery of the lower face of said body portion, and a protrusion on said lower face of said body portion within the area bounded by said spike and extending a distance below said lower face.
Claim 15
Dependent Claim
131 words
A spike cluster adapted for attachment to the bottom of an athletic shoe, said cluster comprising a body portion, means on the body portion for attachment thereof to the bottom of a shoe, and a plurality of spikes extending downwardly from said body portion, each spike having a vertical bore therein open at the bottom of said spike, said body portion having a concavity in its upper face with a rim at the periphery of said upper face surrounding the concavity, said attachment means extending upwardly from said upper face, said spikes being located near the periphery of the lower face of said body portion, and a protrusion on said lower face of said body portion within the area bounded by said spike and extending a distance below said lower face.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |