US3849882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaving unit for safety razor
Assignee: Warner Lambert Co LLC
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Filing: 1974-01-14
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Granted: 1974-11-26
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Expires: 1994-01-14
Abstract
Abstract The specific disclosure provides a shaving unit comprising two superimposed double edge razor blades with the cutting edges of the top blade being set back a slight distance from the cutting edges of the bottom blade. The top blade has a transversely elongated aperture in vertical alignment with a transversely elongated aperture in the bottom blade. A spacer is positioned between the blades and has a transversely elongated aperture in alignment with the apertures of the blades. An outwardly extending loop is formed at each end of the spacer aperture. The outer portion of each loop has a thickness greater than the thickness of the remainder of the loop, but approximately equal to the thickness of the non-loop portions of the spacer. The blades are permanently bonded to the spacer at the outer portions of the loops.
Inventors
- 👤 F Ferraro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:48
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/54
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
222 words
A shaving unit for a double edge safety razor, said shaving unit comprising: a. a first transversely elongated member including a pair of transversely extending opposite sideS and a transverse aperture, each one of the first member opposite sides having a cutting edge; b. a second transversely elongated member including a pair of transversely extending opposite sides and a transverse aperture, each one of the second member opposite sides having a cutting edge, said second member being positioned above said first member with the aperture of said second member being positioned above the aperture of said first member and with the cutting edges of said second member being positioned upwardly and inwardly of the cutting edges of said first member; c. a transversely elongated spacer member positioned between said first member and said second member and comprising a transversely extending aperture vertically aligned with the apertures of said first and second members, and a rib at each end of said spacer aperture, each one of the ribs including a raised portion having a thickness greater than the remainder of the rib and at least approximately equal to the thickness of the non-rib portions of the spacer member; and d. means for permanently bonding said first and second members to said spacer member at the raised portion of each one of the ribs.
Claim 2
Dependent Claim
222 words
A shaving unit for a double edge safety razor, said shaving unit comprising: a. a first transversely elongated member including a pair of transversely extending opposite sideS and a transverse aperture, each one of the first member opposite sides having a cutting edge; b. a second transversely elongated member including a pair of transversely extending opposite sides and a transverse aperture, each one of the second member opposite sides having a cutting edge, said second member being positioned above said first member with the aperture of said second member being positioned above the aperture of said first member and with the cutting edges of said second member being positioned upwardly and inwardly of the cutting edges of said first member; c. a transversely elongated spacer member positioned between said first member and said second member and comprising a transversely extending aperture vertically aligned with the apertures of said first and second members, and a rib at each end of said spacer aperture, each one of the ribs including a raised portion having a thickness greater than the remainder of the rib and at least approximately equal to the thickness of the non-rib portions of the spacer member; and d. means for permanently bonding said first and second members to said spacer member at the raised portion of each one of the ribs.
Claim 3
Dependent Claim
10 words
The unit of claim 1 wherein the ribs extend outwardly.
Claim 4
Dependent Claim
11 words
The unit of claim 2 wherein the ribs are generally U-shaped.
Claim 5
Dependent Claim
15 words
The unit of claim 2 wherein the raised portions are centrally located on the ribs.
Claim 6
Dependent Claim
31 words
The unit of claim 1 wherein said spacer aperture has a longitudinally elongated portion at each end thereof, and wherein the ribs bridge the longitudinally elongated portions of said spacer aperture.
Claim 7
Dependent Claim
19 words
The unit of claim 1 wherein the cutting edges of said first member and said second member are parallel.
Claim 8
Dependent Claim
15 words
The unit of claim 1 wherein said first and second members are flexible, metallic members.
Claim 9
Dependent Claim
14 words
The unit of claim 1 wherein said spacer member is a flexible, metallic member.
Claim 10
Dependent Claim
18 words
The unit of claim 1 wherein said first and second members are double cutting edge safety razor blades.
Claim 11
Dependent Claim
19 words
The unit of claim 1 wherein said spacer member is thicker than each of said first and second members.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |