← Back to Patent Explorer
US4428116A Expired / Lapsed US ⏱️ 0.0 years remaining

Support for releasably retaining a blade cartridge

Assignee: Warner Lambert Co LLC
•
Filing: 1983-03-24
•
Granted: 1984-01-31
•
Expires: 2003-03-24
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A shaving instrument including an elongated support terminating in a yoke with an attached slide cooperating with the support to facilitate receiving and retaining a blade cartridge in pivotal and releasable fashion in the yoke.

Inventors

  • 👤 Evan N. Chen
  • 👤 Frank A. Ferraro

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 04:30
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/52; B26B21/521

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 223 words
A support assembly for releasably retaining a razor blade cartridge comprising two relatively movable plastic elements defining a slide and a cooperating support, said support being formed with tracks for receiving and guiding projections depending from the slide, each said projection terminating in a claw operable to latch the slide permanently and slidably to the support, said support defining further a yoke having a pair of flexible arms each terminating in a stub shaft, said slide making a driving connection with said arms operative to flex the arms to open and closed positions, said slide being formed further with a plurality of individual spring means, a first spring means defining a leaf spring providing power urging the slide to its normal position relative to the track and by virtue of the driving connection between the slide and the arms insuring that the arms flex inwardly to said closed position in positive and automatic fashion to retain a cartridge releasable within the yoke and a second spring means defining a pair of L-shaped springs for urging the cartridge toward a predetermined attitude and flared fingers carried by said second spring means for homing the assembly toward the cartridge, said support being formed further with a rib straddled by a pair of spaced abutments carried by the slide to limit the stroke of the slide.
Claim 2
Dependent Claim 223 words
A support assembly for releasably retaining a razor blade cartridge comprising two relatively movable plastic elements defining a slide and a cooperating support, said support being formed with tracks for receiving and guiding projections depending from the slide, each said projection terminating in a claw operable to latch the slide permanently and slidably to the support, said support defining further a yoke having a pair of flexible arms each terminating in a stub shaft, said slide making a driving connection with said arms operative to flex the arms to open and closed positions, said slide being formed further with a plurality of individual spring means, a first spring means defining a leaf spring providing power urging the slide to its normal position relative to the track and by virtue of the driving connection between the slide and the arms insuring that the arms flex inwardly to said closed position in positive and automatic fashion to retain a cartridge releasable within the yoke and a second spring means defining a pair of L-shaped springs for urging the cartridge toward a predetermined attitude and flared fingers carried by said second spring means for homing the assembly toward the cartridge, said support being formed further with a rib straddled by a pair of spaced abutments carried by the slide to limit the stroke of the slide.

References Cited (Backward Citations)

US4198746A Cited
US4281455A Cited
US4266340A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-01-30 1987-08-01 1988-01-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-01-30 1991-08-01 1992-01-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-01-30 1995-08-01 1996-01-31 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag