Abstract: 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 cutting blades to move relative to the other of the first and second cutting blades. At least one fastening assembly has first and second facing shoulders between which the first and second cutting blades reside. The at least one fastening assembly further has at least one biasing element that produces a force that biasably urges the first and second flat cutting blade surfaces towards each other.

Abstract: A hair clipper includes three blade blocks each including comb-like blades mutually overlapped for making sliding contact with each other, each blade block having a skin contact surface parallel to a projecting direction of the comb-like blades; and a main body including a drive unit for reciprocating one of the comb-like blades. The blade blocks include first, second and third blade blocks. The second blade block has a skin surface contact angle between a longitudinal axis of the main body and the skin contact surface acute and greater than that of the first blade block. The third blade block has a skin surface contact angle same as that of the second blade block. The third blade block has a cutting width smaller than that of the first and second blade blocks. The main body includes an attachment unit for detachably attaching one of the blade blocks to the main body.

Abstract: Disclosed is a hair clipper having a moving lower blade, in which the lower blade moves so that upper and lower blades reciprocate in opposite directions and cross each other. In the hair clipper, an eccentric cam is connected to a rotary shaft of a motor installed in a main body, and an eccentric shaft formed on the eccentric cam is inserted into a fixing groove formed in an upper blade fixing plate and vibrates horizontally, the lower blade is mounted on a blade support, such that the lower blade can move horizontally, and is fixed to one end of a link, the central portion of which is fixed to the blade support, and the other end of which is fixed to the lower surface of an upper blade fixing plate, to which an upper blade is fixed, and thus, when the upper blade fixing plate vibrates horizontally by the rotation of the motor, the lower blade vibrates on the blade support by the link in the direction opposite to the vibration of the upper blade.

Abstract: A blade set for a hair clipper including a movable blade constructed of ceramic. The movable blade includes an upper surface having a pair of integrally formed upper reinforcing protrusions. The upper reinforcing protrusions are disposed adjacent to a drive notch sized to receive a drive finger of the hair clipper. Reciprocation of the drive finger results in a cutting action of the blade set.

Abstract: The disposable cutting head is basically a four element clip together assembly with a base, lower and upper cutting blades, and spring. The base serves as the support for the entire assembly and incorporates the attachment elements for retention to a clipper. The spring holds the elements together, forces the cutting blades together and includes the runner under which the upper blade slides. The entire assembly is such that the head assembly with blades is of the disposable type, but uses metal blades. If desired the blades alone may be disposed and the head assembly reused; however, the structure is not intended for long wear and use. The head and blades are constructed such that the common problems encountered with existing removable/disposable heads and blades as for example heat retention in the blades and head and the catching and pulling of hair are minimized. Use with clipper comb elements is also accommodated.

Abstract: A hair clipping device includes a housing, a bladeset engageable upon the housing and including at least one stationary blade and at least one moving blade configured for reciprocal movement relative to the at least one stationary blade. The stationary blade has a first cutting edge and a second cutting edge, the at least one moving blade including a first moving edge configured for reciprocal movement relative to the first cutting edge, and a second moving edge configured for reciprocal movement relative to the second cutting edge. The housing defines a cutting location for the blades and the bladeset is rotatably engageable on the housing between a first position in which the first edges are employed, and a second position in which the second edges are employed. The housing encloses an apparatus for creating a vacuum, and defines a vacuum intake.

Abstract: A hedge cutter having at least two cutting bars, movable relatively of each other and the cutting bars each have cutting edges, at least a part of which are provided with denticulations. Preferably, the cutting edge of each cutting bar is inclined at an angle running obliquely outwardly from the surface of each cutting bar with a cutting angle between substantially 30° and 50°. The opposed cutting teeth of the cutting bars may be arranged symmetrically, asymmetrically or anti-symmetrically.

Abstract: A cutter assembly includes a cutter support member made of aluminum or magnesium-aluminum alloy, a plurality of friction blocks mounted to a groove at a bottom side of the cutter support member, two cutter blades arranged in a stack and supported on the friction blocks, and fasteners respectively fastened to the friction blocks to secure the cutter blades to the cutter support member for enabling the cutter blades to be moved alternately relatively to each other.

Abstract: A hair clipper includes a handle portion having a drive end with a first coupler formation, and a blade assembly. The blade assembly includes a housing at least partially enclosing a reciprocating blade and a fixed blade, and having a top, bottom, and at least two sides joining the top and bottom. Integrally joined to and extending away from the bottom of the housing is a second coupler formation for engaging the first coupler formation. The first and second coupler formations form a releasable connection which inhibits movement of the blade assembly with respect to the handle portion when the two coupler formations are engaged.

Abstract: A blade assembly for an electric hair cutter that includes a stationary blade and a cutting blade, where the cutting blade is configured for reciprocating arcuate motion relative to the stationary blade. The stationary blade includes a plurality of stationary cutting teeth, with each of the stationary cutting teeth having a tip at a distal end thereof, and wherein the tips of the stationary cutting teeth define a first imaginary line. The cutting blade includes a plurality of reciprocating cutting teeth, with each of the reciprocating cutting teeth having a tip at a distal end thereof, and wherein the tips of the reciprocating cutting teeth define a second imaginary line. The distance between the first imaginary line and the second imaginary line is greater near both end portions thereof than a corresponding distance at a center portion between the end portions.

Abstract: A hedge cutter having at least two cutting bars, movable relatively of each other and the cutting bars each have cutting edges, at least a part of which are provided with denticulations. Preferably, the cutting edge of each cutting bar is inclined at an angle running obliquely outwardly from the surface of each cutting bar with a cutting angle between substantially 30° and 50°. The opposed cutting teeth of the cutting bars may be arranged symmetrically, asymmetrically or anti-symmetrically.

Abstract: The invention is directed to a power driven hair clipper (HSM), comprising a drive mechanism provided in a housing (1) and a clipper head (S) equipped with a clipper comb (3) and a clipper blade (4) and mounted on a wall of said housing (1) for pivotal motion about a pivot axis (Z) by means of a supporting element (T), wherein the clipper head (S) has two cutting teeth rows (40, 41) arranged in opposed relation to each other, wherein the supporting element (T) releasing the cutting teeth rows (40, 41) is constructed as a housing shell (5), wherein the geometric form of the housing shell (5) is formed by a sector (SK1, SK2) of a cross sectional shape of at least one circular cylinder (Z1, Z2) as well as end walls (24, 25) associated with said sector (SK1, SK2), said end walls being constructed as part of a conical surface (KM1, KM2) with cone angles (&agr;1, &agr;2) relative to the pivot axis (Z), and wherein the housing wall (110) adjacent to the housing shell (5) has an inner contour that is essentially para

Abstract: A blade block of a hair cutter including a fixed blade, a movable blade reciprocating with respect to the fixed blade, and a blade base to which the fixed blade and the movable blade are attached. The fixed blade and the movable blade are assembled with a reciprocating guide unit into a blade unit. The reciprocating guide unit guides the movable blade to reciprocate with respect to the fixed blade. The blade block include an insertion opening. A mounting unit is provided to mount the blade unit to the blade base by inserting the blade unit into the insertion opening so that a cutting edge is exposed to the outside of the blade block.

Abstract: The invention is directed to a long-hair cutter unit (LHS) for a dry shaving apparatus (TR), with a dimensionally stable cutting comb (11) having one cutting teeth row (17) and at least one bearing surface (110) for at least one engagement surface (120) of an arcuately curved, hardened cutting blade (12) having one cutting teeth row (18) and held in engagement with the cutting comb (11) by a pressure of at least one spring element (19, wherein the curvature of the hardened cutting blade (12) is partially configured by means of a forming process such as to ensure conformance and slidable contact of the engagement surface (120) of the cutting blade (12) with the bearing surface (110) of the cutting comb (11) by means of the partial curvatures as well as their restoring forces under the action of the pressure of the spring element (19).

Abstract: The disposable cutting head is basically a four element clip together assembly with a base, lower and upper cutting blades, and spring. The base serves as the support for the entire assembly and incorporates the attachment elements for retention to a clipper. The spring holds the elements together, forces the cutting blades together and includes the runner under which the upper blade slides. The entire assembly is such that the head assembly with blades is of the disposable type, but uses metal blades. If desired the blades alone may be disposed and the head assembly reused; however, the structure is not intended for long wear and use. The head and blades are constructed such that the common problems encountered with existing removable/disposable heads and blades as for example heat retention in the blades and head and the catching and pulling of hair are minimized. Use with clipper comb elements is also accommodated.

Abstract: A hair cutting device for providing the user with greater control when trimming around person's neck, ears, and forehead. The hair cutting device includes an elongate housing having a front end and a back end; and also includes a cutting assembly including a cutting head assembly being movably attached to the front end of the elongate housing; and further includes cutting head attachments being removably mounted to the cutting head assembly.

Abstract: The invention is directed to a power driven hair clipper (HSM), comprising a drive mechanism provided in a housing (1) and a clipper head (S) equipped with a clipper comb (3) and a reciprocating clipper blade (4, 82), wherein provision is made for a foil (47) between the clipper comb (3) and the clipper blade (4, 82), such that an engagement surface (A2) of the clipper blade (4, 82) provided opposite the row of cutting teeth (42, 43) is carried on the foil (47) in sliding relationship thereto.

Abstract: There is provided a hair clipper with a housing having a control for selectively connecting a motor positioned in the housing to an energy source. The hair clipper also having a rotating blade assembly with one or more cutting edges and a switch mechanism operatively connected to said blade assembly. The hair clipper allows the blade assembly to be efficiently and effectively adjusted to conveniently provide a user with several different hair cutting options.

Abstract: The invention is directed to a long-hair cutter unit (LHS) for a dry shaving apparatus (TR), with a dimensionally stable cutting comb (11) having one cutting teeth row (17) and at least one bearing surface (110) for at least one engagement surface (120) of an arcuately curved, hardened cutting blade (12) having one cutting teeth row (18) and held in engagement with the cutting comb (11) by a pressure of at least one spring element (19, wherein the curvature of the hardened cutting blade (12) is partially configured by means of a forming process such as to ensure conformance and slidable contact of the engagement surface (120) of the cutting blade (12) with the bearing surface (110) of the cutting comb (11) by means of the partial curvatures as well as their restoring forces under the action of the pressure of the spring element (19).

Abstract: The disposable cutting head is basically a four element clip together assembly with a base, lower and upper cutting blades, and spring. The base serves as the support for the entire assembly and incorporates the attachment elements for retention to a clipper. The spring holds the elements together, forces the cutting blades together and includes the runner under which the upper blade slides. The entire assembly is such that the head assembly with blades is of the disposable type, but uses metal blades. If desired the blades alone may be disposed and the head assembly reused; however, the structure is not intended for long wear and use. The head and blades are constructed such that the common problems encountered with existing removable/disposable heads and blades as for example heat retention in the blades and head and the catching and pulling of hair are minimized. Use with clipper comb elements is also accommodated.

Abstract: The disposable cutting head is basically a four element clip together assembly with a base, lower and upper cutting blades, and spring. The base serves as the support for the entire assembly and incorporates the attachment elements for retention to a clipper. The spring holds the elements together, forces the cutting blades together and includes the runner under which the upper blade slides. The entire assembly is such that the head assembly with blades is of the disposable type, but uses metal blades. If desired the blades alone may be disposed and the head assembly reused; however, the structure is not intended for long wear and use. The head and blades are constructed such that the common problems encountered with existing removable/disposable heads and blades as for example heat retention in the blades and head and the catching and pulling of hair are minimized. Use with clipper comb elements is also accommodated.

Abstract: The invention is directed to a power driven hair clipper (HSM), comprising a drive mechanism provided in a housing (1) and a clipper head (S) equipped with a clipper comb (3) and a clipper blade (4, 82) and mounted on said housing (1) for pivotal motion about a pivot axis (Z), wherein the clipper comb (3) is in cooperating relationship with two clipper blades (4, 82), each being adapted to be coupled with a drive member (12) of the drive mechanism according to the pivot position of the clipper head (S) relative to the housing (1).

Abstract: 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 such dismounting. Also, conventional integrated type clipper blades can be mounted thereon. The power working machine includes a working portion provided with a pair of clipper blades and a power transmission device for transmitting a reciprocating driving power to the working portion, wherein the power transmission device includes a pair of intermediate reciprocating driving plates which are couplingly interposed between a pair of reciprocating movement-guiding arms, to be driven by a driving rotor, and the pair of clipper blades.

Abstract: A blade is provided for use in a hair clipper having a bladeset including a moving blade and a stationary blade, the bladeset being constructed and arranged so that the moving blade is pressed against the stationary blade for allowing the moving blade to reciprocate relative to the stationary blade in a transverse direction to a longitudinal axis of the clipper. The blade includes a base portion having a tooth end, and a mounting end opposite the tooth end, a plurality of teeth arranged in spaced, parallel relationship to each other and projecting from the tooth end, each tooth having a tip and a root opposite the tip and being joined to the tooth end. The roots are joined to the tooth end in spaced relationship to each other to define generally planar-floored channels between the roots for facilitating the evacuation of hair and/or hair clippings from a cutting area of the bladeset.

Abstract: A hand-held power working machine which is capable of reducing the weight of the clipper blades, capable of being suitably heat-treated in the manufacture thereof, and capable of minimizing the stress concentration at the slot portions during the operation thereof. The clipper blades comprise a large number of cutting edges, and a large number of slots formed along a full length of each of the clipper blades; wherein the pitch of array of the cutting edges is substantially the same as the pitch of array of the slots.

Abstract: A set of hair cutting blades, for use with an electric buzzer, comprising at least one upper blade and at least one lower blade. The upper blade has a plurality of upper teeth, and has a short side and a long side. The upper teeth vary in length such that they gradually increase in length between the short side and the long side. The upper teeth also vary in height such that they gradually increase in height between the short side and the long side. The lower blade has lower teeth which are uniform in both length and height. The upper blade is mounted to the buzzer directly over the lower blade and the blades are reciprocated against each other to create a cutting action. By a preferred embodiment, left and right facing upper blades are provided which form a mirror image of each other such that among both of said blades the short side and long side are reversed.

Abstract: A clipper for cutting hair strands includes a blade set which has a stationary blade having a plurality of stationary blade teeth arranged a row so that hair strands enter between adjacent stationary teeth as the blade set moves through the hair strands. The stationary blade teeth have angled side cutting edges and tips, and the side cutting edges of adjacent teeth form roots where they intersect.A moving blade has a plurality of moving blade teeth which are also arranged in a row. The moving blade teeth complement the stationary blade teeth and pass across the stationary blade teeth in use to cut some of the hair strands. The moving blade teeth are relatively short, and preferably have tips which are flat. The moving blade teeth are separated by blade-like edge surfaces which are oriented in the direction of movement of the moving blade and are capable of cutting some of the hair strands which enter between the stationary blade teeth.

Abstract: A hair-cutting apparatus (1) is provided having a toothed cutting device (5) comprising a stationary first toothed cutter (6) with a first cutter-tooth row (7) and a second toothed cutter (9) with a second cutter-tooth row (10), which second toothed cutter is drivable so as to reciprocate about a pivotal axis (8), the first cutter-tooth row (7) of the first toothed cutter (6) extends linearly in a first row direction (23) and the second cutter-tooth row (10) of the second toothed cutter (9) comprises two row segments (24, 25) which in a central position of the second toothed cutter (9), starting from a center point (26), diverge with respect to the linear direction of the first cutter-tooth row (7).

Abstract: The invention is directed to a cutter blade support for a pair of knives of a hedge trimmer. The cutter blade support includes first and second bars conjointly defining a space therebetween. First and second cutter blades are arranged in the space and define respective sets of apertures formed therein. The first bar has openings formed therein and a plurality of threaded bolts are held in the second bar. The threaded bolts extend through the respective sets of apertures and have respective end portions extending through the openings in the first bar. Attachment nuts are disposed on the first bar and threadably engage corresponding ones of the end portions. The threaded bolts are pressed into the second bar so as to be tightly held therein and so as to be nonrotatable with respect thereto.

Abstract: A hair-cutting apparatus has a toothed cutting device comprising a stationary cutter with a row of cutter teeth and a reciprocable cutter with a row of cutter teeth, the cutter teeth of at least one of the two cutters are rounded at their distal ends except for the area of their shearing faces and in addition are wholly rounded over their entire tooth depth into the proximal tooth area except for the area of their shearing faces.

Abstract: A clipper blade for use in a blade assembly of a hair clipper, the blade assembly having a fixed blade and a moving blade reciprocating relative to the fixed blade, the clipper blade includes a web portion having a first edge, and a second edge, a plurality of teeth on at least one of the first and second edges, at least one blade assembly engagement formation being located on the web portion closer to one of the first and second edges than the other of the edges, so that when a pair of blades each having the web portion and the at least one engagement formation are inserted into the blade assembly in reversed opposing relationship to each other, one blade of the pair being the fixed blade edge and having a plurality of teeth on the first edge, and the other blade of the pair being the moving blade and having a plurality of teeth on the second edge, the moving blade is laterally offset relative to the fixed blade.

Abstract: A hand-held gardening machine includes a pair of upper and lower clipper blades each formed with clipper teeth. The clipper blades are caused to slidably reciprocate in a longitudinal direction thereof by means of output from a power source. A comb-like safety plate is formed with protrusions protruding beyond the tips of the teeth. The positions at which the protrusions of the safety plate are located are selectable from overlapping positions of the teeth of the clipper blades and positions shifted from the overlapping positions.

Abstract: The invention is directed to a long-hair trimming device for dry shaving apparatus, with a stationary cutting comb provided with a bent flange on its rear side, with a toothed blade assembly capable of reciprocating longitudinally thereof in a rectilinear direction and urged there-against by means of springs, and with a spring mounting means fastened to the flange and providing the abutment for the springs, wherein the blade assembly is configured as a thin cutting blade mounted flat and fixedly on a supporting structure, wherein at least one angle lever cooperating with the springs is pivoted at the spring mounting means, the free lever arm extending in the direction of the supporting structure in the area of the teeth of the cutting blade and cooperating with the supporting structure under spring action, and wherein, next to the guide of the blade assembly directly on the inner surface of the flange further means for guiding the blade assembly are provided on the side of the spring mounting means proximate

Abstract: The present invention is a folding pole hedge trimmer, which is capable of operating at unusual heights, twenty (20) feet or more from the ground. It includes an elbow joint in which the upper hollow pole and the lower hollow pole can be folded for easy storage. The present invention utilizes a very light-weight reciprocating cutting head used for hedge trimming, shaping of tree crowns, cypresses, bougainvilleas and other tall growing plants. The present invention relates to a spring biased mechanical cable drive. The present invention is designed to reduce the weight, complexity and cost of the spring biased mechanical cable drive.

Abstract: A hedge cutting bar is shown and described as having rivets for securing a cutting blade between a retaining blade and a stationary blade. The rivet structure includes a central flange and distal hubs whereby the central flange may occupy slots in the cutting blade while the hubs attach within respective mounting apertures of the stationary blade and the retaining blade. The thickness of the flange is greater than the thickness of the cutting blade whereby a gripping force provided by the rivet is taken up at the flange to avoid pinching of the cutting blade between the stationary blade and the retaining blade. The described fastening arrangement is less suspectable to loosening under the vibrational forces imposed during use of the hedge cutting bar than that of prior fastening arrangements.

Abstract: A hedge trimming tool having a fixed elongated blade mounted to the power head of the tool and a cutting blade mounted over the fixed blade and reciprocating relative to the fixed blade in the direction of the lengthwise axis. A leading side of the fixed blade has projecting fingers or teeth and the overlying portion of the cutting blade has projecting teeth that reciprocate across the openings between the fingers. The reciprocating teeth have sides configured in a complex curve forming an hour glass planar profile and an inverted U-shaped cross section. The U-shaped cross section is provided by curving the sides of the teeth downwardly whereby the teeth sides are angularly projected through the plane defined by the bottom surface of the blade. The cutting edges along the sides are formed by grinding faces through the portions of the teeth projected below the bottom surface of the blade. The faces are formed in a single pass of the grinding implement with the faces parallel to the bottom surface of the blade.

Abstract: An improved cutting apparatus for horticultural use comprises a first cutting device, a second cutting device, and a retaining plate. The second cutting device has a plurality of second elongated holes disposed thereon serving as sliding rails on which rolling beads travel. The retaining plate comprises a plurality of through holes through which rolling beads are partially exposed. The retaining plate also comprises a plurality of elastic press pieces affixed thereto, with each of elastic press pieces having a press portion located at one end thereof for pressing the exposed portion of the rolling beads so as to ensure that first and second cutting devices make a reciprocating motion in a linear manner.

Abstract: 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 shaft attached to a motor moves the reciprocating blade in a back-and-forth motion through a set operating stroke, determined by the lateral distance the cam moves during its rotation. A guide bar maintains the reciprocating blade in a blade guide parallel to the stationary blade throughout the operating stroke, but not through the maximum stroke the blade can travel when the head assembly is removed from the handle for cleaning or other servicing. Anti-lock ribs or an anti-lock bar are provided on the blade guides to engage the guide bar throughout the maximum stroke distance, thereby maintaining the reciprocating blade parallel to the stationary blade throughout the maximum stroke.

Abstract: The invention relates to a cutting unit for cutting hair, for example, as used in a shaver, comprising a first and a second cutting member, each having teeth and at least one cutting member that can be driven so as to perform a reciprocating movement with respect to the other cutting member, the second cutting member being present between the first cutting member and a locking member. The first cutting member and the locking member are connected together by means of spacers.

Abstract: A dermatome blade assembly includes a first part defining a cutting edge and a second part adapted for reciprocating attachment with a dermatome. The second part is made from a light weight bearing like plastic to minimize vibration and resistance to movement for the blade assembly during operation.

Abstract: A unique one-piece disposable clipper head is characterized by the provision of a synthetic plastic base molded as a unitary structure about two metal cutting blades which are integrally formed with the base during an insertion molding process. The base includes a fixed portion with which the lower cutting blade is integrally formed and a movable portion with which the upper cutting blade is integrally formed. The upper movable portion and the lower fixed portion of the base are initially formed as a unitary structure. Following molding of the base, the movable portion is separated from the fixed portion to afford horizontal or lateral displacement of the movable portion and the upper blade relative to the fixed base portion and the lower blade. The base contains a recess in the bottom surface thereof for receiving the clamping mechanism of an electric clipper for attachment thereto.

Abstract: A pneumatically operated pile carpet trimmer includes a housing having a drive shaft projecting from one end thereof, and a shearing head removably threaded on the last-named end to surround the projecting end of the shaft. An operating lever which is pivotally mounted in the head is connected at one end to the movable shearing member of a set of shears which is removably mounted on the bottom of the head, and the opposite end of the lever is releasably connected to an eccentric carried by the drive shaft. When the latter rotates it oscillates the lever, which therefore reciprocates the movable shearing member. The head may have two sets of shears removably mounted thereon to operate in intersecting planes. In each case exhaust air from the housing is directed onto the shears to blow away cuttings.

Abstract: An electric hair clipper is disclosed which has a plurality of spaced cutting teeth. With this clipper, hair strands may be cut by passing the hair clipper over the hair in a series of swift, flowing strokes. The clipper may be passed over the hair at the outer periphery of the hair, or it may be passed over the hair within the periphery, to change the hair style. The hair clipper may also be used to thin or layer hair. In one such method of thinning or layering hair, the operator passes a comb through the hair in a swift stroke, creating a trough in the hair behind the comb. The hair clipper follows the comb in the trough, cutting hair strands which are displaced by the comb as the hair returns to its natural position. If desired, the clipper can be passed through the hair at an angle away from the scalp, so that the hair strands are cut different lengths.

Abstract: A disposable head adapted for one-time use as an attachment to an electric shaver for cutting hair of a patient close to the skin in preparation for surgery has a lower portion comprising a lower plastic member adapted for engagement with a portion of the body of a patient to be shaved and a lower thin metal blade insert-molded integrally with the lower plastic member at an upper region thereof and an upper portion comprising an upper plastic member and an upper thin metal blade insert-molded integrally with the upper plastic member at a lower region thereof. The blades are opposed to and in contact with each other when the head is assembled, and each of the blades has an edge formed with a row of cutting teeth. The rows are substantially parallel to each other, and the teeth of each row are relatively reciprocable with respect to the teeth of the other row so as to cut hair drawn between a tooth of one row and an adjacent tooth of the other row.

Abstract: An improved clipper and improved cutter head attachment device of the type having a pair of mating members including a substantially flat male member and a female slot. One of the mating members has at least one resilient offset portion which must be squeezed into engagement against the other of the mating members when the cutter head is engaged with the main clipper body. This provides gap-free engagement which reduces noise and improves cutting performance.

Abstract: The invention is directed to a hedge trimmer having a pair of elongated cutters journalled for reciprocal movement. The two movable cutters are journalled on a guide bar so as to be movable in the longitudinal direction thereof and include cutting teeth which extend transversely to the direction of movement. Protective teeth are arranged with respect to the guide bar and are arranged next to the cutting teeth so as to be parallel thereto. The protective teeth are configured to be so long that the free end portions thereof project outwardly beyond the outer edges of the cutting teeth.

Abstract: Concave curve-shaped stem capturing recesses are provided in edges of stem guiding slots in non-blade carrying member of a rechargeable, battery powered reciprocating hedge and shrub trimmer. The recesses have portions presenting acute stem contact angles to the guided stems, which portions extend inward from about the location of the blade tip a distance greater than about 50% of the effective blade height.

Abstract: A disposable hair clipping head assembly adapted for attachment to an electric clipper is disclosed. The assembly is characterized by a novel two-piece construction including fixed and movable members formed of synthetic plastic material. The fixed member includes a base and an integral spring having a portion thereof extending in parallel spaced relation from the base. One edge of the fixed member base contains a plurality of teeth. The movable member is arranged between the spring and base of the fixed member, with the spring serving to retain the movable member which is adapted for reciprocal movement relative to the base. One edge of the movable member also contains a plurality of teeth which are arranged adjacent the teeth of the fixed member. The fixed member also includes a pair of lugs integrally connected with the spring, the lugs being adapted for interlocking attachment to the electric clipper.

Abstract: A pneumatically operated pile carpet trimmer includes a housing having a drive shaft projecting from one end thereof, and a shearing head removably threaded on the last-named end to surround the projecting end of the shaft. An operating lever which is pivotally mounted in the head is connected at one end to the movable shearing member of a set of shears which is removably mounted on the bottom of the head, and the opposite end of the lever is releasably connected to an eccentric carried by the drive shaft. When the latter rotates it oscillates the lever, which therefore reciprocates the movable shearing member. The head may have two sets of shears removably mounted thereon to operate in intersecting planes. In each case exhaust air from the housing is directed onto the shears to blow away cuttings.

Abstract: A reciprocating cutter type trimmer having reciprocative blades, each blade is divided into a power transmission member and an edge member, and the edge member has, at its longitudinally opposite ends, fitting parts so as to be removably mountable to a fitting part provided for the power transmission member.