Patent US3089236A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3089236A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric shaver with improved tubular comb and rotor type cutting head

Assignee: Individual
•
Filing: 1960-05-10
•
Granted: 1963-05-14
•
Expires: 1980-05-10
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Joseph A Galvao

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 09:14
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/14; B26B19/16

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 231 words
A SHAVER COMPRISING A HOUSING, A MOTOR MEANS POSITIONED IN SAID HOUSING, SAID MOTOR MEANS HAVING A PINION GEAR CONNECTED TO THE END OF THE MOTOR SHAFT, A SHAVING HEAD OPERATIVELY CONNECTED TO SAID MOTOR, SAID SHAVING HEAD COMPRISING A PLURALITY OF TUBULAR COMBS, EACH HAVING AN INNER ANNULAR WALL SURFACE, AND TRANSVERSELY EXTENDING COMB TEETH TERMINATING AT A SLOT EXTENDING LONGITUDINALLY OF THE RESPECTIVE COMBS, A CUTTING MEANS ROTATABLY MOUNTED IN EACH OF SAID COMBS, EACH CUTTING MEANS INCLUDING AN ELONGATED BLADE HOLDER ROTATABLY JOURNALED TO SAID HEAD, EACH OF SAID HOLDERS HAVING A PLURALITY OF LONGITUDINALLY EXTENDING, RADIALLY DISPOSED GROOVES, EACH OF WHICH TWIST TO COMPRISE A SEGMENT OF A HELIX, A FLAT STRAIGHT CUTTING BLADE HAVING A HOLLOW GROUND CUTTING EDGE POSITIONED IN EACH OF SAID GROOVES AND ADAPTED TO ASSUME THE HELICAL TWIST OF SAID GROOVE, A FLAT SPRING LEAD POSITIONED IN EACH GROOVE NORMALLY URGING SAID CUTTING BLADE INTO CONTACTING RELATIONSHIP WITH THE INNER END OF ITS RESPECTIVE TUBULAR COMB, MEANS FOR LOOSELY RETAINING EACH OF SAID BLADES IN ITS RESPECTIVE GROOVE, A PINION GEAR CONNECTED TO EACH OF THE BLADE HOLDERS AT ONE END THEREOF, A GEAR TRAIN IN MESHING RELATIONSHIP WITH SAID MOTOR DRIVE PINION GEAR AND SAID BLADE HOLDER DRIVEN PINION GEARS TO IMPART COUNTER-ROTATION TO SAID BLADE HOLDERS, AND MEANS THROUGH WHICH THE CUT HAIRS ARE AUTOMATICALLY EJECTED DURING A SHAVING OPERATION.
Claim 2
Dependent Claim 231 words
A SHAVER COMPRISING A HOUSING, A MOTOR MEANS POSITIONED IN SAID HOUSING, SAID MOTOR MEANS HAVING A PINION GEAR CONNECTED TO THE END OF THE MOTOR SHAFT, A SHAVING HEAD OPERATIVELY CONNECTED TO SAID MOTOR, SAID SHAVING HEAD COMPRISING A PLURALITY OF TUBULAR COMBS, EACH HAVING AN INNER ANNULAR WALL SURFACE, AND TRANSVERSELY EXTENDING COMB TEETH TERMINATING AT A SLOT EXTENDING LONGITUDINALLY OF THE RESPECTIVE COMBS, A CUTTING MEANS ROTATABLY MOUNTED IN EACH OF SAID COMBS, EACH CUTTING MEANS INCLUDING AN ELONGATED BLADE HOLDER ROTATABLY JOURNALED TO SAID HEAD, EACH OF SAID HOLDERS HAVING A PLURALITY OF LONGITUDINALLY EXTENDING, RADIALLY DISPOSED GROOVES, EACH OF WHICH TWIST TO COMPRISE A SEGMENT OF A HELIX, A FLAT STRAIGHT CUTTING BLADE HAVING A HOLLOW GROUND CUTTING EDGE POSITIONED IN EACH OF SAID GROOVES AND ADAPTED TO ASSUME THE HELICAL TWIST OF SAID GROOVE, A FLAT SPRING LEAD POSITIONED IN EACH GROOVE NORMALLY URGING SAID CUTTING BLADE INTO CONTACTING RELATIONSHIP WITH THE INNER END OF ITS RESPECTIVE TUBULAR COMB, MEANS FOR LOOSELY RETAINING EACH OF SAID BLADES IN ITS RESPECTIVE GROOVE, A PINION GEAR CONNECTED TO EACH OF THE BLADE HOLDERS AT ONE END THEREOF, A GEAR TRAIN IN MESHING RELATIONSHIP WITH SAID MOTOR DRIVE PINION GEAR AND SAID BLADE HOLDER DRIVEN PINION GEARS TO IMPART COUNTER-ROTATION TO SAID BLADE HOLDERS, AND MEANS THROUGH WHICH THE CUT HAIRS ARE AUTOMATICALLY EJECTED DURING A SHAVING OPERATION.

References Cited (Backward Citations)

US2119248A Cited
US2216994A Cited
US2198266A Cited
US2229159A Cited
US2269875A Cited
US2321932A Cited
US2289447A Cited
US2289323A Cited
US2461858A Cited
US2574472A Cited
US2982020A Cited
FR1192334A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-05-13 1966-11-12 1967-05-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-05-13 1970-11-12 1971-05-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-05-13 1974-11-12 1975-05-14 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag