US4846250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of casting a handle for a surgical blade
Assignee: Individual
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Filing: 1988-10-17
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Granted: 1989-07-11
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Expires: 2008-10-17
Abstract
Abstract The handle is made by casting in a two part mold. The lower mold part includes a vertical split post having two vertical spaced posts with their upper ends in the form of lateral tabs. The upper mold part has a flat wall member cooperating with the lateral tabs.
Inventors
- 👤 Richard J. Bedner
- 👤 Emil Yerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:52
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3209; A61B17/3211; A61B17/3213
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
The method of making a handle for a surgical blade comprising the steps of providing a first lower mold member having a shape to form the lower portion of a handle, a vertical split post rising from said first mold member at one portion thereof, said split post including two vertical posts separated by a space and having upper ends in the form of lateral tabs, providing a second upper mold member having a shape to form the upper portion of the handle and having a flat wall cooperating with said lateral tabs, assembling the first and second mold members to form a mold, filling said mold with molten metal, said split post forming a blade locking member having a vertical wall formed in said space and two side tabs formed by said lateral tabs.
Claim 2
Independent Claim
135 words
The method of making a handle for a surgical blade comprising the steps of providing a first lower mold member having a shape to form the lower portion of a handle, a vertical split post rising from said first mold member at one portion thereof, said split post including two vertical posts separated by a space and having upper ends in the form of lateral tabs, providing a second upper mold member having a shape to form the upper portion of the handle and having a flat wall cooperating with said lateral tabs, assembling the first and second mold members to form a mold, filling said mold with molten metal, said split post forming a blade locking member having a vertical wall formed in said space and two side tabs formed by said lateral tabs.
Claim 3
Independent Claim
148 words
The method of making a metal handle for a surgical blade comprising providing a first mold part having a configuration for forming the lower portion of a blade handle and having at one location therein a vertical split pin including two spaced apart vertical posts having flat coplanar top surfaces, forming cutouts in said coplanar top surfaces to form ledges in said vertical posts below said top surfaces, and providing a second mold part having a configuration for forming the upper portion of said handle and including a post having a flat lower surface adapted to cooperate with said flat coplanar surfaces of said vertical posts and said split pin to form a locking member including a vertical wall formed by the space between said two vertical posts and two lateral tabs extending from said vertical wall and formed by the cutouts formed in said two vertical posts.
Claim 4
Independent Claim
148 words
The method of making a metal handle for a surgical blade comprising providing a first mold part having a configuration for forming the lower portion of a blade handle and having at one location therein a vertical split pin including two spaced apart vertical posts having flat coplanar top surfaces, forming cutouts in said coplanar top surfaces to form ledges in said vertical posts below said top surfaces, and providing a second mold part having a configuration for forming the upper portion of said handle and including a post having a flat lower surface adapted to cooperate with said flat coplanar surfaces of said vertical posts and said split pin to form a locking member including a vertical wall formed by the space between said two vertical posts and two lateral tabs extending from said vertical wall and formed by the cutouts formed in said two vertical posts.
References Cited (Backward Citations)
US3311976A
Cited
JPS578040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |