Patent US3511956A successfully refreshed from Google Patents.
US4336948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skate blade
Assignee: St Lawrence Manufacturing Co Inc
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Filing: 1980-01-25
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Granted: 1982-06-29
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Expires: 2000-01-25
Abstract
Abstract An ice skate runner for use in a skate holder has an elongated metal body with a solid central portion and a pair of elongated cut-outs, one on either side of the central portion extending towards the end of the runner. The portion of the cut-out adjacent the central portion is wide and the cut-out tapers downwardly in width towards the end of the runner. The plastic holder for the runner is molded around the latter so that the plastic flows through the cut-outs. The solid central portion of the runner locks the plastic at that area and forces the plastic on cooling to shrink from both ends of the runner towards the center, relieving stress in the combination. Spacer pins are inserted in the mold adjacent the ends of the runners during the molding process and then removed thereafter to allow shrinkage space between the ends of the holder and the ends of the runner.
Inventors
- 👤 George Couture
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:05
CPC Classifications
A; A63; A63C; A63C1/00; A63C1/42
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
A combined ice skate runner and plastic holder therefor, said holder comprising a heel column and a sole column, each column including a plate on the upper end thereof for connecting the holder to a skate boot, and a bridge member interconnecting said columns; said runner comprising a planar, elongated metal body having a lower portion including a hardened, ice-engaging edge and an upper portion embedded in the plastic holder, said runner having a wide central web intermediate the upper and lower edges and at least one elongated opening on either side of said web; each said opening being completely surrounded by portions of said metal body, said opening tapering downwardly in width from the central web towards the ends of the runner such that, during construction, the material of the plastic holder flows through said openings and shrinks toward the central web of the runner.
Claim 2
Dependent Claim
146 words
A combined ice skate runner and plastic holder therefor, said holder comprising a heel column and a sole column, each column including a plate on the upper end thereof for connecting the holder to a skate boot, and a bridge member interconnecting said columns; said runner comprising a planar, elongated metal body having a lower portion including a hardened, ice-engaging edge and an upper portion embedded in the plastic holder, said runner having a wide central web intermediate the upper and lower edges and at least one elongated opening on either side of said web; each said opening being completely surrounded by portions of said metal body, said opening tapering downwardly in width from the central web towards the ends of the runner such that, during construction, the material of the plastic holder flows through said openings and shrinks toward the central web of the runner.
Claim 3
Dependent Claim
27 words
The combined runner and holder of claim 1, wherein the top edge of each of said at least one opening is substantially parallel to said upper edge.
Claim 4
Dependent Claim
34 words
The combined runner and holder of claim 1 wherein said central web is solid and said metal body is tapered such that said central web is wider than both ends of said metal body.
Claim 5
Independent Claim
149 words
The method of manufacturing a combined ice skate runner and holder, said runner having a wide central web and an elongated cut-out on either side thereof and tapering downwardly in width from the central web towards the end of the runner; comprising the steps of: placing the runner in a mold cavity; inserting spacing pins of a predetermined width at the outside ends of the runner; injecting a plastic material into said cavity to form the runner holder said material flowing through said cut-outs and around the outside of the pins and around the top edge of the runner; and withdrawing said pins to allow said plastic to cool whereby the ends of the holder will shrink towards the central web into the spaces provided by said pins and into the wide areas of the cut-outs, and everywhere around the runner without building up significant stresses in said combination.
Claim 6
Independent Claim
149 words
The method of manufacturing a combined ice skate runner and holder, said runner having a wide central web and an elongated cut-out on either side thereof and tapering downwardly in width from the central web towards the end of the runner; comprising the steps of: placing the runner in a mold cavity; inserting spacing pins of a predetermined width at the outside ends of the runner; injecting a plastic material into said cavity to form the runner holder said material flowing through said cut-outs and around the outside of the pins and around the top edge of the runner; and withdrawing said pins to allow said plastic to cool whereby the ends of the holder will shrink towards the central web into the spaces provided by said pins and into the wide areas of the cut-outs, and everywhere around the runner without building up significant stresses in said combination.
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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) | 1985-06-28 | 1985-12-28 | 1986-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-28 | 1989-12-28 | 1990-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-28 | 1993-12-28 | 1994-06-29 | $7700.00 | Window Closed / Lapsed |