Patent US4074909A successfully refreshed from Google Patents.
US4074909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice skate
Assignee: KENBUDGE HOLDINGS Ltd
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Filing: 1976-08-18
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Granted: 1978-02-21
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Expires: 1996-08-18
Abstract
Abstract The invention relates to improvements in the construction of ice skates, and provides an ice skate having an elongated blade and a plastic superstructure for holding the blade. The superstructure has a groove for receiving the upper edge of the blade and the blade is held in the superstructure by means of bolts. The bolts have heads designed to fit into recesses in the upper edge of the blade and are secured at their other ends in the plastic superstructure. The heads of the bolts fit snugly into the recesses and the sides of the recesses firmly anchor the heads when the blade is properly positioned in the superstructure. Preferably nuts are used to secure the other ends of the bolts and in this manner a very firm and secure attachment of the blade in the superstructure can be achieved.
Inventors
- 👤 Hugh E. Baikie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:42
CPC Classifications
A; A63; A63C; A63C1/00; A63C1/30; A63C1/32
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
161 words
An ice skate comprising: a. an elongated blade having an ice-engaging edge and an upper edge opposite the ice-engaging edge; b. a superstructure made of plastic material for holding the blade, said superstructure defining a groove for receiving said upper edge of the blade; c. a plurality of bolts for attaching the blade to the superstructure, each bolt having an enlarged head; d. a plurality of recesses in the blade defined by said upper edge for receiving and retaining said enlarged heads of the bolts; e. means for retaining said bolts under tension in said superstructure when said upper edge is located in said groove, whereby said blade is firmly held in said groove by said bolts; and f. wherein the ends of said bolts remote from said heads are threaded, and said retaining means comprise threaded nuts which can be screwed onto said ends and which can be tightened against said superstructure to hold said bolts in place under tension.
Claim 2
Dependent Claim
161 words
An ice skate comprising: a. an elongated blade having an ice-engaging edge and an upper edge opposite the ice-engaging edge; b. a superstructure made of plastic material for holding the blade, said superstructure defining a groove for receiving said upper edge of the blade; c. a plurality of bolts for attaching the blade to the superstructure, each bolt having an enlarged head; d. a plurality of recesses in the blade defined by said upper edge for receiving and retaining said enlarged heads of the bolts; e. means for retaining said bolts under tension in said superstructure when said upper edge is located in said groove, whereby said blade is firmly held in said groove by said bolts; and f. wherein the ends of said bolts remote from said heads are threaded, and said retaining means comprise threaded nuts which can be screwed onto said ends and which can be tightened against said superstructure to hold said bolts in place under tension.
Claim 3
Dependent Claim
19 words
An ice skate according to claim 1 wherein spring washers are positioned between said nuts and the adjacent superstructure.
Claim 4
Dependent Claim
22 words
An ice skate according the claim 1 wherein the upper edge of the blade defines a plurality of projections of low profile.
Claim 5
Dependent Claim
15 words
An ice skate according to claim 3 wherein said recesses are formed in said projections.
Claim 6
Dependent Claim
41 words
An ice skate according to claim 1 wherein the extreme ends of said upper edge have cut-out portions which form recesses in the blade and said superstructure has projections at the ends of said groove which engage within said cut-out portions.
Claim 7
Dependent Claim
33 words
An ice skate according to claim 1 wherein said enlarged heads are generally of flat triangular shape and said recesses are of substantially the same shape, said heads fitting snugly within said recesses.
Claim 8
Dependent Claim
34 words
An ice skate according to claim 1 wherein a part of the superstructure defining the edge of the groove which contacts said upper edge of the blade is convex as seen in transverse cross-section.
Claim 9
Dependent Claim
44 words
An ice skate according to claim 1 wherein said upper edge of the blade is curved in the longitudinal direction and parts of the superstructure defining the groove are correspondingly curved so that the upper edge of the blade fits closely within the groove.
Claim 10
Dependent Claim
42 words
An ice skate according to claim 1 wherein said superstructure comprises an upwardly extending toe support, an upwardly extending heel support spaced from said toe support, and an elongated runner extending along said blade between said toe support and said heel support.
Claim 11
Dependent Claim
56 words
An ice skate according to claim 9 wherein said toe support and said heel support each comprise wall members defining an internal cavity, and said runner comprises wall members defining a plurality of internal cavities which open into said groove, all of said wall members being of one fifth of an inch in thickness or less.
Claim 12
Dependent Claim
62 words
An ice skate according to claim 9 wherein said toe support and said heel support each comprise wall members defining an internal cavity, and said runner comprises wall members defining a plurality of external cavities extending in a row from said heel support to said toe support, all of said wall members being of 1/5 of an inch in thickness or less.
Claim 13
Dependent Claim
15 words
An ice skate according to claim 1 wherein said blade is made of stainless steel.
Claim 14
Dependent Claim
24 words
An ice skate according to claim 1 wherein the superstructure comprises walls of generally even thickness of one fifth of an inch or less.
Claim 15
Dependent Claim
24 words
An ice skate according to claim 1 wherein the superstructure comprises walls of generally even thickness of one eighth of an inch or less.
Claim 16
Dependent Claim
54 words
A blade for a skate superstructure made of plastic material, said blade comprising an ice-engaging edge and an upper edge opposite to the ice-engaging edge, said upper edge defining a plurality of recesses for receiving and retaining the enlarged heads of bolts, wherein said upper edge defines a plurality of projections of low profile.
Claim 17
Dependent Claim
54 words
A blade for a skate superstructure made of plastic material, said blade comprising an ice-engaging edge and an upper edge opposite to the ice-engaging edge, said upper edge defining a plurality of recesses for receiving and retaining the enlarged heads of bolts, wherein said upper edge defines a plurality of projections of low profile.
Claim 18
Dependent Claim
14 words
A blade according to claim 15 wherein said recesses are formed in said projections.
Claim 19
Dependent Claim
24 words
A blade according to claim 15 wherein the extreme ends of said upper edge have cut out portions which form recesses in the blade.
Claim 20
Dependent Claim
14 words
A blade according to claim 15 wherein said recesses are of substantially triangular shape.
Claim 21
Dependent Claim
19 words
A blade according to claim 15 wherein said upper edge of the blade is curved in the longitudinal direction.
Claim 22
Dependent Claim
83 words
An ice skate comprising: a. an elongated blade having an ice-engaging edge and an upper edge opposite the ice-engaging edge; b. a superstructure made of plastic material for holding the blade, said superstructure defining a groove for receiving said upper edge of the blade, and wherein the part of the superstructure defining the edge of the groove which contacts said upper edge of the blade is convex when viewed in transverse cross-section; and c. means for firmly holding said blade in said superstructure.
Claim 23
Dependent Claim
83 words
An ice skate comprising: a. an elongated blade having an ice-engaging edge and an upper edge opposite the ice-engaging edge; b. a superstructure made of plastic material for holding the blade, said superstructure defining a groove for receiving said upper edge of the blade, and wherein the part of the superstructure defining the edge of the groove which contacts said upper edge of the blade is convex when viewed in transverse cross-section; and c. means for firmly holding said blade in said superstructure.
Claim 24
Dependent Claim
94 words
An ice skate comprising: a. an elongated blade having an ice-engaging edge and an upper edge opposite the ice-engaging edge; b. a superstructure made of plastic material for holding the blade, said superstructure defining a groove for receiving said upper edge of the blade, and wherein the extreme ends of said upper surface of the blade have cut-out portions which form recesses in the blade and said superstructure has projections at the ends of the groove which are received within said cut-out portions; and c. means for firmly holding said blade in said superstructure.
Claim 25
Dependent Claim
94 words
An ice skate comprising: a. an elongated blade having an ice-engaging edge and an upper edge opposite the ice-engaging edge; b. a superstructure made of plastic material for holding the blade, said superstructure defining a groove for receiving said upper edge of the blade, and wherein the extreme ends of said upper surface of the blade have cut-out portions which form recesses in the blade and said superstructure has projections at the ends of the groove which are received within said cut-out portions; and c. means for firmly holding said blade in said superstructure.
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) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |