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US3675323A Expired / Lapsed US ⏱️ 0.0 years remaining

Disposable preassembled plastic razor

Assignee: Philip Morris USA Inc
•
Filing: 1969-07-18
•
Granted: 1972-07-11
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Expires: 1989-07-18
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Abstract

Abstract A disposable razor of the double edge blade type of molded plastic material permanently preassembled, designed particularly for use as a surgical preparation razor comprising a handle and bridge member and a cap member with the blade clamped between the two members, the cap having a plurality of pins extending through openings in the blade and bridge member having special complemental shapes adapted to insure correct alignment of the parts including a pair of pins riveted over the ends for securing the assembled relation, said cap member having integral therewith an outer frame arranged to protect the blade edges but readily broken off for use of the razor, and said bridge member having guard portions at the respective blade cutting edges of different character including different degrees of cutting edge exposure or shaving clearance for correspondingly different shaving conditions.

Inventors

  • 👤 Paul A Braginetz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 01:53
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/02; B26B21/06

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 78 words
In a safety razor having a handle and a bridge member supporting a blade with a cutting edge and a cap member assembled in clamping relation over the blade, one of said members being of frangible plastic material and having integral therewith an outer protective guard arranged adjacent the blade cutting edge, said guard being connected to said one member by portions of small cross-sectional area capable of being readily broken manually thereby to remove the protective guard.
Claim 2
Dependent Claim 78 words
In a safety razor having a handle and a bridge member supporting a blade with a cutting edge and a cap member assembled in clamping relation over the blade, one of said members being of frangible plastic material and having integral therewith an outer protective guard arranged adjacent the blade cutting edge, said guard being connected to said one member by portions of small cross-sectional area capable of being readily broken manually thereby to remove the protective guard.
Claim 3
Dependent Claim 18 words
A safety razor in accordance with claim 1 in which the guard is connected to said caP member.
Claim 4
Dependent Claim 28 words
A safety razor in accordance with claim 1 in which the guard has a bar portion arranged parallel to the cutting edge and spaced a small distance therefrom.
Claim 5
Dependent Claim 46 words
A safety razor in accordance with claim 1 in which the razor is of the type employing a double edge blade and said protective guard comprises an outer frame with a bar portion arranged parallel to each blade cutting edge and spaced a small distance therefrom.
Claim 6
Dependent Claim 28 words
A safety razor in accordance with claim 2 in which the portions connecting the guard to the cap member comprise one at each end of the cap member.
Claim 7
Dependent Claim 276 words
A permanently assembled safety razor of the double edge blade type having a handle, a bridge member, a blade, and a cap member; said cap member being of plastic and having a central pin projection extending through an opening in said bridge member and engaged in an axial opening in the handle, and said cap member having a pair of securing pins spaced one at each side of said central pin and each extending from the inner surface of the cap through an opening in said bridge member, each of said securing pins having a lug with parallel sides extending laterally therefrom, said lugs being of a thickness transverse to the cap member less than the diameter of the respective securing pin and extending from the cap member for a distance less than the securing pin and short of the bridge member, said lug in each case being closely fitted in a narrowed slot portion of the blade to determine the position of and maintain the blade edges parallel to the cap edges and at a predetermined distance therefrom with the securing pin extending beyond the lug through a larger opening in the blade and secured in said bridge member to maintain the final assembly of said bridge member, blade and cap member, and said central pin being tapered of increasing diameter inwardly toward the cap with the said axial opening in the bridge member similarly tapered increasing in diameter continuously to the receiving end for said central pin to facilitate assembly and serving to determine the longitudinal position of the cap member and blade in the direction parallel to the edges of the bridge member.
Claim 8
Dependent Claim 276 words
A permanently assembled safety razor of the double edge blade type having a handle, a bridge member, a blade, and a cap member; said cap member being of plastic and having a central pin projection extending through an opening in said bridge member and engaged in an axial opening in the handle, and said cap member having a pair of securing pins spaced one at each side of said central pin and each extending from the inner surface of the cap through an opening in said bridge member, each of said securing pins having a lug with parallel sides extending laterally therefrom, said lugs being of a thickness transverse to the cap member less than the diameter of the respective securing pin and extending from the cap member for a distance less than the securing pin and short of the bridge member, said lug in each case being closely fitted in a narrowed slot portion of the blade to determine the position of and maintain the blade edges parallel to the cap edges and at a predetermined distance therefrom with the securing pin extending beyond the lug through a larger opening in the blade and secured in said bridge member to maintain the final assembly of said bridge member, blade and cap member, and said central pin being tapered of increasing diameter inwardly toward the cap with the said axial opening in the bridge member similarly tapered increasing in diameter continuously to the receiving end for said central pin to facilitate assembly and serving to determine the longitudinal position of the cap member and blade in the direction parallel to the edges of the bridge member.

References Cited (Backward Citations)

CA750619A Cited
US1439902A Cited
US1808480A Cited
DE678521C Cited
US2367517A Cited
US2789346A Cited
US3259978A Cited
US3378922A Cited
US3488673A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-07-11 1976-01-10 1976-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-07-11 1980-01-10 1980-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-07-11 1984-01-10 1984-07-11 $7700.00 Window Closed / Lapsed

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