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US3872572A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of assembling knife handle and blade

Assignee: REGENT SHEFFIELD Ltd A CORP OF NEW YORK
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Filing: 1973-03-08
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Granted: 1975-03-25
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Expires: 1993-03-08
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Abstract

Abstract A knife handle is molded from plastic to have formed therein a blade tang-receiving socket and a plurality of venting holes formed in the walls of the socket. To assemble the knife handle and blade, the tang of the knife blade is heated and then thrust into the tang-receiving socket causing the plastic walls of the receiving socket to become viscous such that the viscous plastic flows around the blade tang and positively grips the knife blade within the knife handle upon hardening of the plastic. The venting holes allow for the escape from the receiving socket of any gases and heat generated incident to the assembly operation. After sufficient cooling, the venting holes are plugged with self-tapping pins.

Inventors

  • 👤 Jerome S Hahn

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 18:01
CPC Classifications
B; B26; B26B; B26B3/00; B26B3/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49835; Y10T29/49908; Y10T29/49925; Y10T29/49945

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 85 words
A method of assembling a plastic knife handle and a knife blade having a blade tang formed at one end thereof, which comprises the steps of molding the knife handle and forming a blade tang-receiving socket therein, forming vent holes in the walls of said tang-receiving socket, heating said blade tang, inserting said heated blade tang into said tang-receiving socket, said insertion generating gases within said tang-receiving socket which are vented through said vent holes and plugging said vent holes after said gases have dissipated.
Claim 2
Independent Claim 85 words
A method of assembling a plastic knife handle and a knife blade having a blade tang formed at one end thereof, which comprises the steps of molding the knife handle and forming a blade tang-receiving socket therein, forming vent holes in the walls of said tang-receiving socket, heating said blade tang, inserting said heated blade tang into said tang-receiving socket, said insertion generating gases within said tang-receiving socket which are vented through said vent holes and plugging said vent holes after said gases have dissipated.

References Cited (Backward Citations)

US570346A Cited
US1510005A Cited
US1035427A Cited
US1978532A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-24 1978-09-23 1979-03-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-24 1982-09-23 1983-03-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-24 1986-09-23 1987-03-25 $7700.00 Window Closed / Lapsed

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