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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8028423 | Reciprocating-type cutting blade device A reciprocating-type cutting blade device (1) has first and second driving bodies (15, 16) driven reciprocatingly in opposite directions. First and second cutting blade bodies (13, 14) are driven reciprocatingly by detachably engaging the first ... | 10/04/2011 |
| 7757405 | Trimmer with reciprocating blades A trimmer having a first cutting blade and a second cutting blade. A first drive gear assembly cooperates with the cutting blades so that as the first drive gear assembly rotates around a first axis, the cutting blades are caused to reciprocatingly move in first and... | 07/20/2010 |
| 7406770 | Trimmer with cooperating cutter blades A trimmer having first and second cutting blades. The first and second cutting blades are mounted so that first and second flat surfaces, respectively thereon, face and are substantially parallel to each other. A drive causes at least one of the first and second cut... | 08/05/2008 |
| 7398879 | Package with product demonstration feature Disclosed is a package for containing a battery-powered device having both a power switch and a safety button, where both the power switch and the safety button must be actuated in order to turn the product on. The package has integral means to maintain the safety b... | 07/15/2008 |
| 7360311 | Drive mechanism for power tool A drive mechanism for a power tool having a housing, a motor, and an output shaft moving in a reciprocating motion. The drive mechanism comprises a gear plate (34) adapted to rotate about a first axis (Z-Z) and having a plurality of elongate first teeth (3... | 04/22/2008 |
| 7346990 | Rotary motor clipper with linear drive system A hair clipper includes a motor with a rotary output shaft, a bladeset including a stationary blade and a moving blade configured for reciprocation relative to the stationary blade, a drive system configured for transferring motion from the output shaft to the blade... | 03/25/2008 |
| 7237620 | Electric garden tiller An electric garden tiller is disclosed. The tiller is light weight, compact and easy to use. The tiller includes a two stage speed reduction transmission and an aluminum transmission housing. Connected to the transmission housing are a main housing and electric moto... | 07/03/2007 |
| 7051442 | Ear area comb attachment for hair clipper An ear area comb attachment for attachment to a hair clipper having a bladeset with a moving blade laterally reciprocating relative to a stationary blade includes a base configured for attachment to the clipper and a guard formation associated with the base for bloc... | 05/30/2006 |
| 6598299 | Eccentric drive for a portable handheld work apparatus The invention relates to an eccentric drive (1) and especially to an eccentric drive for a portable handheld work apparatus having a wheel (3) driven by a drive motor (2). A cam (5) is eccentrically fixed to an end face (4) of the wheel (3). The cam (5) i... | 07/29/2003 |
| 6286217 | Reciprocating saw with pivoted arm drive A reciprocating saw 11 comprises an output shaft 21 mounted for reciprocal motion in a housing 13. A counterweight 27 is mounted in the housing for reciprocal movement relative to the output shaft. A first drive 37 is connected between a motor and the out... | 09/11/2001 |
| 6263579 | Hand-held power working machine A hand-held power working machine in which the clipper blades thereof can be easily dismounted for the exchange or grinding thereof in a way that minimizes the possibility of damage to the power transmission device or the clipper blades in the course of s... | 07/24/2001 |
| 6044558 | Combination of hair combing trimmer, shaver, and head side profile cutter A combination of hair combing trimmer, shaver, and head side profile cutter includes a main body and a cutting head. The main body has a power supply and transmission unit mounted therein and defines a reservoir therein for receiving hair clippings. The c... | 04/04/2000 |
| 5794348 | Clipper comb A clipper comb is comprised of a handle having a motor, responsive to an activation button depression, disposed therein. A cutting assembly, having a comb and a cutter with a plurality of blades such that in a normally relaxed state each blade overlies a ... | 08/18/1998 |
| 5689887 | Hedge shear A motor-driven hedge shear has a housing, a pair of hedge shear cutters extending in a longitudinal direction outwardly of the housing, means for reciprocatingly driving the hedge shear cutters in opposite directions and including a motor shaft, a couliss... | 11/25/1997 |
| 5666730 | Power working machine A power working machine in which maintenance work is improved by having the heads of case fastening and motor fastening screws covered by the gasket provided between the mount base and the transmission cover. This prevents dirt load grease from clogging t... | 09/16/1997 |
| 5068966 | Blade assembly for electric hair clippers A blade assembly for electric hair clippers includes a stationary blade having a plurality of teeth arranged in a row, and a reciprocating blade having a plurality of teeth which complement the stationary blade teeth. A cam eccentric which is turned by a ... | 12/03/1991 |
| 4949460 | Hair trimmer A hair trimmer is provided having a housing provided with a stationary cutter and a cutter which can be driven relative to the stationary cutter, the housing comprising a comb attachment which is adjustable relative to the housing. The housing is provided... | 08/21/1990 |
| 4726117 | Shearing handpiece rear section A shearing handpiece rear section for connection between a drive tube assembly and a handpiece front section which includes a cutter and driving fork, and comprising an outer casing, a tubular bushing threaded therein and connected with a partly encircled... | 02/23/1988 |
| 4700476 | Shaver for a medical treatment preparation procedure An improved method and apparatus for preparing a body site prior to the application of medical treatment at the site is disclosed. The apparatus and method provide for the use of a hand-held, electrically-energized clipper having a disposable cutter head ... | 10/20/1987 |
| 4679322 | Hair clipper A precision hair clipper for cutting the hair of a subject to a uniform length which comprises a housing defining a flow chamber attachable to a vacuum hose. At the inlet of the housing a pair of reciprocating blades are configured to maintain a constant ... | 07/14/1987 |
| 4581822 | Electric hair clipper The disclosure is directed to an improved electric hair clipper of a type with a pivotal head portion, having a comb plate for comb-cutting, in which a blade unit is arranged to be slidable for releasable attachment with respect to the head portion, in a ... | 04/15/1986 |
| 4498237 | Hair trimmer The present invention is a cutting unit having multiple sets of tandem blades; each set being composed of a first toothed blade moved reciprocatingly in a cutting motion relative to a second tooth blade. The blades are preferably curved.... | 02/12/1985 |
| 4328616 | Laminated hair clipper blade set A hair clipper blade set comprises a fixed blade assembly having a forward edge with a series of teeth extending therealong and a movable blade assembly having a forward edge with a series of teeth extending therealong. The movable blade assembly is suppo... | 05/11/1982 |
| 4249307 | Hair clipper Disclosed herein is a hair clipper including a housing, a motor located in the housing and including a shaft having a drive member thereon, and a blade set connected to the housing. The blade set includes a lower blade connected to the housing, and a mova... | 02/10/1981 |
| 4215475 | Oscillating cut-out tool An oscillating cut-out tool used for removing windshields from a vehicle. The tool designed to cut through urethane or similar types of material used in securing a vehicle windshield in a windshield frame.... | 08/05/1980 |
| 4159566 | Electric razorcomb A comb is removably mounted in a multicompartmented housing, a razor moves in a slot in the comb driven by a motion converter transmitter activated by a sinusoid grooved transmission guide mounted on the rotor shaft of the motor, a tie binder is used to c... | 07/03/1979 |
| 4125940 | Hair trimmer A hand-held electrically energized hair trimming appliance is disclosed which is adapted to alternatively utilize a demountable clipper assembly or a demountable trimmer assembly. The demountable trimmer assembly includes an extending segment for supporti... | 11/21/1978 |
| 4106190 | Hair clipper A hair clipper is arranged to alleviate one cause of pseudofolliculitis. The hair clipper comprises a motor for reciprocally moving a first cutter against low-lying facial hairs causing these hairs to become erect for cutting above the skin line between t... | 08/15/1978 |
| 4075760 | Battery operated shears There is disclosed herein a battery operated power grass shear wherein a fixed blade and a superimposed laterally oscillating movable blade have forwardly projecting, laterally spaced cutting teeth, the planes of said blades being tilted convergently rela... | 02/28/1978 |
| 3992778 | Electric clipper Disclosed herein is a hair clipper comprising an outer housing of electrically insulating material, a motor located in the housing and including a field structure, an armature structure including a shaft, and bearing assemblies spaced axially of the armat... | 11/23/1976 |
| 3971130 | Electric grass sickle-shear The single-toothed blade is pivoted at its rear end and driven at its middle section in arcuate reciprocation over the teeth of a fixed base plate by an electric motor. The blade and the slide of the crank-slide blade drive mechanism comprise the wear par... | 07/27/1976 |
| 3959878 | Convertible portable electric tool This invention teaches a convertible portable electric tool having a common power housing and different operating tool output pieces which can be releasably secured to said power housing without the need of any tools. Each of the tool output pieces has a ... | 06/01/1976 |
| 3956824 | Cordless electric grass shear having improved blade system A battery powered grass shear having improved upper and lower shear blades with improved cutting and durability characteristics and which require less power to operate. The lower shear blade, which is fixed to the housing of the battery powered grass shea... | 05/18/1976 |
| 3934340 | Cutting blade edge construction for mechanically actuated shears Pairs of planar cutting blades with angularly related cutting edges such as are used in grass shears, and the like, and which are mechanically actuated to move relative to each other and to cut by a scissors-like action are formed in a manner such that du... | 01/27/1976 |
