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US3942247A Expired / Lapsed US ⏱️ 0.0 years remaining

Can opener with bag opener attachment

Assignee: Sunbeam Corp
•
Filing: 1974-08-02
•
Granted: 1976-03-09
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Expires: 1994-08-02
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Abstract

Abstract A motor driven can opener is provided with a bag opener having a cutting blade with supporting means which cooperates with the can opener housing whereby the cutting blade is retained without the use of screws or other assembly means and is easily removable for replacement. The supporting means and the housing form an enclosure for the blade with an opening which provides access to the sharpened edge of the blade so that a bag to be opened may be engaged with the blade.

Inventors

  • 👤 George Mark Ponczek
  • 👤 Herman Owen DeBoer, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 10:42
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/38; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 183 words
The combination of a bag opener with a motor driven can opener, said can opener being of the type having a housing enclosing an electric motor which is drivingly connected to a can rotating means, and cutting means movably mounted on said housing for engagement with the top of a can being opened, said bag opener comprising a bag opener casing; an elongated cutting blade having a sharpened edge extending the length thereof and contained within said casing; latching means removably securing said bag opener casing to said can opener housing; means in said casing for retaining said cutting blade against lateral displacement; means on said housing adapted to abutt the edge of said cutting blade opposite said sharpened edge thereof when said casing is positioned on said housing; said casing being formed with an opening exposing a portion of said sharpened edge of said cutting blade whereby said exposed portion may be used for opening a bag; and an arm extending from said casing and spaced forwardly of said opening for protecting the user from the exposed portion of said cutting blade.
Claim 2
Dependent Claim 183 words
The combination of a bag opener with a motor driven can opener, said can opener being of the type having a housing enclosing an electric motor which is drivingly connected to a can rotating means, and cutting means movably mounted on said housing for engagement with the top of a can being opened, said bag opener comprising a bag opener casing; an elongated cutting blade having a sharpened edge extending the length thereof and contained within said casing; latching means removably securing said bag opener casing to said can opener housing; means in said casing for retaining said cutting blade against lateral displacement; means on said housing adapted to abutt the edge of said cutting blade opposite said sharpened edge thereof when said casing is positioned on said housing; said casing being formed with an opening exposing a portion of said sharpened edge of said cutting blade whereby said exposed portion may be used for opening a bag; and an arm extending from said casing and spaced forwardly of said opening for protecting the user from the exposed portion of said cutting blade.
Claim 3
Dependent Claim 51 words
The combination bag opener and can opener of claim 1 wherein said blade retaining means in said casing comprises spaced blade supports located on alternate sides of said blade; said blade supports being integrally formed within said bag opener casing, and said retaining means allowing easy replacement of said cutting blade.
Claim 4
Dependent Claim 89 words
The combination bag opener and can opener of claim 1 wherein said latching means is comprised of a plurality of resilient projections extending from said bag opener casing; latching tabs located at the terminal ends of said projections; a plurality of openings formed in said can opener housing to receive said projections with said latching tabs being resiliently engaged behind the edges of said opening thereby retaining said casing on said housing with said housing rigidly secured by and between said latching tabs and the body of said casing.
Claim 5
Dependent Claim 233 words
The combination of a bag opener with a motor driven can opener; said can opener being of the type having a housing enclosing an electric motor which is drivingly connected to a can rotating means; and cutting means movably mounted on said housing for engagement with the top of a can being opened, said bag opener comprising a casing; a cutting blade having a sharpened edge replaceably mounted in said casing; an opening formed in said casing exposing a portion of said sharpened edge of said cutting blade to permit access thereto by a bag to be opened; an arm extending from said casing and spaced forwardly of said opening whereby to protect the user from the exposed portion of said cutting blade; latching means for detachably securing said bag opener casing to said can opener housing; cooperating means in said casing and on said housing for supporting said cutting blade; said cooperating means including alternately located blade supports integrally formed within said bag opener casing; said supports retaining said blade in said casing while still allowing easy removal therefrom; an angular projection extending from said can opener housing abutting the edge of said cutting blade opposite said sharpened edge; a slot in said housing adjacent said angular projection to receive a corner of said blade; and a back side of said arm and said casing abutting the sharpened edge of said blade.
Claim 6
Dependent Claim 233 words
The combination of a bag opener with a motor driven can opener; said can opener being of the type having a housing enclosing an electric motor which is drivingly connected to a can rotating means; and cutting means movably mounted on said housing for engagement with the top of a can being opened, said bag opener comprising a casing; a cutting blade having a sharpened edge replaceably mounted in said casing; an opening formed in said casing exposing a portion of said sharpened edge of said cutting blade to permit access thereto by a bag to be opened; an arm extending from said casing and spaced forwardly of said opening whereby to protect the user from the exposed portion of said cutting blade; latching means for detachably securing said bag opener casing to said can opener housing; cooperating means in said casing and on said housing for supporting said cutting blade; said cooperating means including alternately located blade supports integrally formed within said bag opener casing; said supports retaining said blade in said casing while still allowing easy removal therefrom; an angular projection extending from said can opener housing abutting the edge of said cutting blade opposite said sharpened edge; a slot in said housing adjacent said angular projection to receive a corner of said blade; and a back side of said arm and said casing abutting the sharpened edge of said blade.

References Cited (Backward Citations)

US3253084A Cited
US3315352A Cited
US3803713A Cited
US3824688A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-03-09 1979-09-08 1980-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-03-09 1983-09-08 1984-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-03-09 1987-09-08 1988-03-09 $7700.00 Window Closed / Lapsed

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