← Back to Patent Explorer
US4721833A Expired / Lapsed US ⏱️ 0.0 years remaining

Retrievable electric cord reel

Assignee: TDI Products Inc
•
Filing: 1985-11-15
•
Granted: 1988-01-26
•
Expires: 2005-11-15
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A retractable electric cord reel is disclosed having a base, a rotatable reel on said base and a drive motor disposed in the hub of said reel.

Inventors

  • 👤 Frank X. Dubay

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 12:27
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/40; B65H75/44; B65H75/4481; B65H75/4486; H; H02; H02G; H02G11/00; H02G11/02; B65H2551/00; B65H2551/10; B65H2551/13

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 180 words
A retractable electric cord reel comprising a base, a rotatable reel supported on said base and a motor for providing a rotatable drive between said base and said reel, said motor including means to thrust the drive shaft outwardly into engagement with said drive gears upon actuating said motor, said base including a pair of upstanding end walls, said rotatable reel being disposed between said end walls, a pair of support brackets, one of said support brackets being secured to a first of said upstanding end walls, said one bracket carrying at least a pair of rotatable drive gears for drivingly supporting a first end of said reel, said one bracket further including means for supporting a first end of said motor, the second of said support brackets being secured to the other of said end walls, said second bracket including means for transmitting electric current across the rotating interface between said base and said reel thereby providing current to cord on said reel, said second bracket including means to support said reel and the second end of said motor.
Claim 2
Dependent Claim 180 words
A retractable electric cord reel comprising a base, a rotatable reel supported on said base and a motor for providing a rotatable drive between said base and said reel, said motor including means to thrust the drive shaft outwardly into engagement with said drive gears upon actuating said motor, said base including a pair of upstanding end walls, said rotatable reel being disposed between said end walls, a pair of support brackets, one of said support brackets being secured to a first of said upstanding end walls, said one bracket carrying at least a pair of rotatable drive gears for drivingly supporting a first end of said reel, said one bracket further including means for supporting a first end of said motor, the second of said support brackets being secured to the other of said end walls, said second bracket including means for transmitting electric current across the rotating interface between said base and said reel thereby providing current to cord on said reel, said second bracket including means to support said reel and the second end of said motor.
Claim 3
Dependent Claim 221 words
A retractable electric cord reel comprising a base, a rotatable reel supported on said base and a motor including a drive shaft for providing a rotatable drive between said base and said reel, said base including a pair of upstanding end walls, said rotatable reel being disposed between said end walls, a pair of support brackets, one of said support brackets being secured to a first of said upstanding end walls, said one bracket carrying at least a pair of rotatable drive gears for drivingly supporting a first end of said reel, said one bracket further including means for supporting a first end of said motor, the second of said support brackets being secured to the other of said end walls, said second bracket including means for transmitting electric current across the rotating interface between said base and said reel thereby providing current to cord on said reel, said second bracket including means to support said reel and the second end of said motor, said motor including means to thrust the drive shaft outwardly into engagement with said drive gears upon actuating said motor, said drive shaft carrying a tapered cone and said drive gears carrying a tapered circumferential portion for mating with said tapered cone, and wherein said means to thrust said drive shaft includes the armature of said motor.
Claim 4
Dependent Claim 221 words
A retractable electric cord reel comprising a base, a rotatable reel supported on said base and a motor including a drive shaft for providing a rotatable drive between said base and said reel, said base including a pair of upstanding end walls, said rotatable reel being disposed between said end walls, a pair of support brackets, one of said support brackets being secured to a first of said upstanding end walls, said one bracket carrying at least a pair of rotatable drive gears for drivingly supporting a first end of said reel, said one bracket further including means for supporting a first end of said motor, the second of said support brackets being secured to the other of said end walls, said second bracket including means for transmitting electric current across the rotating interface between said base and said reel thereby providing current to cord on said reel, said second bracket including means to support said reel and the second end of said motor, said motor including means to thrust the drive shaft outwardly into engagement with said drive gears upon actuating said motor, said drive shaft carrying a tapered cone and said drive gears carrying a tapered circumferential portion for mating with said tapered cone, and wherein said means to thrust said drive shaft includes the armature of said motor.
Claim 5
Dependent Claim 22 words
The cord reel of claim 2 wherein said drive shaft tapered cone and said tapered circumferential portion serve as a slip clutch.
Claim 6
Dependent Claim 31 words
The cord reel of claim 2 wherein said thrust means include means for disengaging said tapered cone from said tapered circumferential portion, thereby providing said reel with a free wheeling mode.
Claim 7
Dependent Claim 32 words
The cord reel of claim 2 wherein said base includes means to swivel said rotatable reel with respect to a supporting surface, thereby providing uniform distribution of cord along said rotatable reel.
Claim 8
Dependent Claim 24 words
The cord reel of claim 2 wherein said end walls are spaced from said rotatable reel to permit escape of heat from said motor.
Claim 9
Dependent Claim 27 words
The cord reel of claim 2 wherein one of said end walls carries a momentary switch for selectively placing said motor in an operative or inoperative mode.
Claim 10
Dependent Claim 39 words
The cord reel of claim 2 wherein said rotatable reel carries an electrical cord and wherein said electrical cord has an outer end with a momentary switch for selectively placing said motor in an operative or an inoperative mode.
Claim 11
Dependent Claim 29 words
The cord reel of claim 2 or 7 wherein said cord reel includes a wireless remote control for selectively placing said motor in an operative or an inoperative mode.
Claim 12
Dependent Claim 127 words
A retractable electric cord reel comprising a base, an electric cord spool rotatably supported on said base, electric cord carried by said spool, an electrically-driven motor mounted within said spool, drive means associated with said motor to provide free-wheeling operation during stripping of said electric cord from said reel and rotatably-driven engagement between said spool and said base during retraction of said cord onto said spool, and control means for selectively operating said motor to retract electric cord onto said spool, said reel including engagement means for engaging and disengaging said drive means, said engagement means comprising a thrust drive, whereby said reel has a driven mode for retracting electric cord onto said spool and a free-wheeling mode to permit stripping of electric cord from said spool.
Claim 13
Dependent Claim 127 words
A retractable electric cord reel comprising a base, an electric cord spool rotatably supported on said base, electric cord carried by said spool, an electrically-driven motor mounted within said spool, drive means associated with said motor to provide free-wheeling operation during stripping of said electric cord from said reel and rotatably-driven engagement between said spool and said base during retraction of said cord onto said spool, and control means for selectively operating said motor to retract electric cord onto said spool, said reel including engagement means for engaging and disengaging said drive means, said engagement means comprising a thrust drive, whereby said reel has a driven mode for retracting electric cord onto said spool and a free-wheeling mode to permit stripping of electric cord from said spool.
Claim 14
Dependent Claim 155 words
A retractable electric cord reel comprising a base, an electric cord spool rotatably supported on said base, electric cord carried by said spool, an electrically-driven motor mounted within said spool, drive means associated with said motor to provide free-wheeling operation during stripping of said electric cord from said reel and rotatably-driven engagement between said spool and said base during retraction of said cord onto said spool, and control means for selectively operating said motor to retract electric cord onto said spool, said control means comprising a portable signal transmitter and a signal-activated electrical switch, said switch being mounted on said reel to control the electrical current to said motor, said reel including engagement means for engaging and disengaging said drive means, said engagement means comprising a thrust drive, whereby said reel has a driven mode for retracting electric cord onto said spool and a free-wheeling mode to permit stripping of electric cord from said spool.
Claim 15
Dependent Claim 155 words
A retractable electric cord reel comprising a base, an electric cord spool rotatably supported on said base, electric cord carried by said spool, an electrically-driven motor mounted within said spool, drive means associated with said motor to provide free-wheeling operation during stripping of said electric cord from said reel and rotatably-driven engagement between said spool and said base during retraction of said cord onto said spool, and control means for selectively operating said motor to retract electric cord onto said spool, said control means comprising a portable signal transmitter and a signal-activated electrical switch, said switch being mounted on said reel to control the electrical current to said motor, said reel including engagement means for engaging and disengaging said drive means, said engagement means comprising a thrust drive, whereby said reel has a driven mode for retracting electric cord onto said spool and a free-wheeling mode to permit stripping of electric cord from said spool.
Claim 16
Dependent Claim 187 words
A retractable electric cord reel comprising a base, an electric cord spool rotatably supported on said base, electric cord carried by said spool, an electrically-driven motor mounted within said spool, drive means associated with said motor to provide free-wheeling operation during stripping of said electric cord from said reel and rotatably-driven engagement between said spool and said base during retraction of said cord onto said spool, and control means for selectively operating said motor to retract electric cord onto said spool, said reel including engagement means for engaging and disengaging said drive means, said engagement means comprising a thrust drive whereby said reel has a driven mode for retracting electric cord onto said spool and a free-wheeling mode to permit stripping of electric cord from said spool, said control means comprise first switch means mounted on the outer end of said electric cord and second switch means mounted on said reel, said first switch means controlling microcurrent to said second switch means thereby placing said second switch selectively in an activated or an inactivated condition, said second switch serving to control the electrical current to said motor.
Claim 17
Dependent Claim 187 words
A retractable electric cord reel comprising a base, an electric cord spool rotatably supported on said base, electric cord carried by said spool, an electrically-driven motor mounted within said spool, drive means associated with said motor to provide free-wheeling operation during stripping of said electric cord from said reel and rotatably-driven engagement between said spool and said base during retraction of said cord onto said spool, and control means for selectively operating said motor to retract electric cord onto said spool, said reel including engagement means for engaging and disengaging said drive means, said engagement means comprising a thrust drive whereby said reel has a driven mode for retracting electric cord onto said spool and a free-wheeling mode to permit stripping of electric cord from said spool, said control means comprise first switch means mounted on the outer end of said electric cord and second switch means mounted on said reel, said first switch means controlling microcurrent to said second switch means thereby placing said second switch selectively in an activated or an inactivated condition, said second switch serving to control the electrical current to said motor.

References Cited (Backward Citations)

US2487395A Cited
US3561695A Cited
US3542172A Cited
US3619518A Cited
US3808382A Cited
US3826879A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-01-25 1991-07-27 1992-01-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-01-25 1995-07-27 1996-01-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-01-25 1999-07-27 2000-01-26 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag