The present invention is directed to devices for applying liquids to substrates and, more specifically, to devices for use in applying paint.
It is a first aspect of the present invention to provide an applicator comprising: (a) a frame including a lateral detent, the lateral detent being repositionable between an extended position and a retracted position; (b) a substrate removably mounted to the frame, the substrate including a first edge generally perpendicular to a second edge, and the substrate including a lateral detent receiver approximate the second edge for selectively receiving the lateral detent when the lateral detent is in the extended position; and (c) a turret rotationally mounted to the frame to allow rotation of the turret independent of the frame, where at least one of the frame and the turret includes an actuator for repositioning the lateral detent from the extended position and to the retracted position.
In a more detailed embodiment of the first aspect, the turret includes the actuator for repositioning the lateral detent from the extended position and to the retracted position. In yet another more detailed embodiment, the lateral detent comprises a pair of opposed lateral detents, the turret includes the actuator, and the lateral detents comprise opposed lateral ends of a deformable panel. In a further detailed embodiment, the deformable panel slidably engages a track on the underside of the frame, the deformable panel is repositionable between a substantially planar orientation and a substantially bowed orientation, the substantially planar orientation corresponds to the extended position, and the substantially bowed orientation corresponds to the retracted position. In still a further detailed embodiment, the deformable panel includes an orifice for receiving a portion of the actuator to mount the turret to the deformable panel. In a more detailed embodiment, the invention further includes a repositionable guide mounted to the frame, the repositionable guide being repositionable between an edging position and a withdrawn position, the repositionable guide including at least one guide wheel extending beyond the guide. In a more detailed embodiment, the frame and turret cooperate to provide a ratchet comprising a toothed wheel engaged and a catch for engaging at least one tooth of the toothed wheel. In another more detailed embodiment, the substrate includes a lateral upstanding loop the cooperates with a base of the substrate to provide the detent receiver. In yet another more detailed embodiment, the turret includes a finger grip, and the turret includes a proximal finger indentation. In still another more detailed embodiment, the turret is pivotally coupled to a threaded shaft receiver, the turret is rotationally repositionable about a first axis, the threaded shaft receiver is rotationally repositionable about a second axis, the first axis is substantially perpendicular to the second axis.
It is a second aspect of the present invention to provide an applicator comprising: (a) a frame including a substantially planar underside, the frame also including a receiver, an actuator, and a turret; (b) a substrate removably mounted to the substantially planar underside of the frame, the substrate including a liquid application surface having a first lateral edge generally perpendicular to a second lateral edge; and (c) a guide including a straight edge and a guide wheel, the guide being repositionably mounted to the receiver and repositionable by way of the actuator between an edging position and a withdrawn position, the guide cooperating with the frame when the guide is in the edging position to form an L-shaped feature adjacent to the substrate when mounted to the frame, the guide wheel extending outward beyond the straight edge to backset the straight edge from an adjacent surface contacting the guide wheel.
In a more detailed embodiment of the second aspect, the frame includes a lateral detent, the lateral detent being repositionable between an extended position and a retracted position, the turret includes a detent actuator for repositioning the lateral detent from an extended position to a retracted position, and the substrate including a lateral detent receiver. In yet another more detailed embodiment, the lateral detent comprises a pair of opposed lateral detents, the substrate comprises a pair of lateral detent receivers, and the lateral detents comprise opposed lateral ends of a deformable panel mounted to the frame. In a further detailed embodiment, the deformable panel slidably engages a track on the underside of the frame, the deformable panel is repositionable between a substantially planar orientation and a substantially bowed orientation, the substantially planar orientation corresponds to the extended position, and the substantially bowed orientation corresponds to the retracted position. In still a further detailed embodiment, the deformable panel includes an orifice for receiving a portion of the actuator to mount the turret to the deformable panel. In a more detailed embodiment, the turret is rotationally mounted to the frame to allow rotation of the turret independent of the frame, the frame and turret cooperate to provide a ratchet comprising a toothed wheel engaged and a catch for engaging at least one tooth of the toothed wheel. In a more detailed embodiment, the substrate includes a lateral upstanding loop that cooperates with a base of the substrate to provide the detent receiver. In another more detailed embodiment, the turret includes a finger grip, and the turret includes a proximal finger indentation. In yet another more detailed embodiment, the turret is pivotally coupled to a threaded shaft receiver, the turret is rotationally repositionable about a first axis, the threaded shaft receiver is rotationally repositionable about a second axis, and the first axis is substantially perpendicular to the second axis.
It is a third aspect of the present invention to provide an applicator frame comprising: (a) a frame including a substantially planar underside and adapted to have a removable painting pad mounted thereto, the frame also including a receiver and an actuator; (b) a guide repositionably mounted to the receiver and repositionable by way of the actuator between an edging position and a withdrawn position, the guide including a straight edge and a guide wheel extending beyond the straight edge when in the guide is in the edging position to backset the straight edge from an adjacent surface contacting the guide wheel, and (c) a turret rotationally mounted to the frame to allow rotation of the turret independent of the frame.
In a more detailed embodiment of the third aspect, the guide is rotationally repositionable with respect to the receiver, the frame includes a substantially linear guide along which the actuator is repositionable, and the actuator is operatively coupled to the guide. In yet another more detailed embodiment, the straight edge comprises multiple straight edge segments, the guide includes a tubular portion having opposing ends, and at least two straight edge segments are mounted to each opposing end of the tubular portion.
The exemplary embodiments of the present invention are described and illustrated below to encompass devices utilized in liquid applications such as, without limitation, painting applications. Of course, it will be apparent to those of ordinary skill in the art that the preferred embodiments discussed below are exemplary in nature and may be reconfigured without departing from the scope and spirit of the present invention. However, for clarity and precision, the exemplary embodiments as discussed below may include optional steps, methods, and features that one of ordinary skill should recognize as not being a requisite to fall within the scope of the present invention.
Referencing
The exemplary disposable structure 104 includes a plastic backing 106 and a carpet 108 sheet glued to the backing. The carpet 108 includes a plurality of upstanding fibers (not shown) that are adapted to retain the paint until the carpet is positioned against the surface to be painted. The backing 106 and carpet 108 define a generally rectangular painting area having a forward linear edge 110 and opposed lateral edges 112, 114 that are perpendicular to the forward linear edge 110. It is to be understood, however, that the backing 106 and carpet 108 may exhibit shapes other than rectangular such as, without limitation, triangular, hexagonal, and T-shaped. It is also to be understood that the opposed lateral edges 112, 114 need not be perpendicular to the forward linear edge 110. A backside surface 116 of the backing 106 includes a pair of upstanding loops 118 longitudinally extending approximate the lateral edges 112, 114. Each loop 118 cooperates with the backside surface 116 to define a longitudinally extending groove 120. As will be discussed in more detail below, this groove 120 operates to couple the disposable structure 104 to the reusable structure 102.
The exemplary reusable structure 102 includes a molded frame 122 to which a turret assembly 124, an ejector assembly 126, and a guide assembly 128 are mounted. Exemplary methods to mold the frame 122 include, without limitation, plastic injection molding. The underside 130 of the frame 122 is substantially planar to receive and apply substantially equal pressure to the plastic backing 106 of the disposable structure 104 during painting. Opposing pairs of guides 132 cooperate with the underside 130 of the frame 122 to provide a track 134 which receives a deformable panel 136 of the ejector assembly 126.
The ejector assembly 126 is operative to retain the disposable structure 104 during painting and selectively disengage the disposable structure 104 subsequent to painting. The deformable panel 136 comprises a rectangular plastic sheet having a generally centered orifice 138 to receive a projection 140 that extends through a cavity 142 within the frame 122. One end of the projection 140 includes a pair of opposed detents 144 for mounting the panel to the projection, while also allowing the projection to rotate with respect to the panel 136. However, for purposes of the instant invention, the projection need not be allowed to rotate with respect to the panel 136. An opposed end of the projection 140 is integrally attached to an actuator 146 that extends through a corresponding cavity 148 formed within a turret 150 of the turret assembly 124. Pushing the actuator 146 downward and into the corresponding cavity 148 forces the projection 140 against the panel 136, causing the panel to deform from a substantially planar position to a substantially bowed position (see
Referring to
Removal of the disposable structure 104 from the reusable structure 102 includes deforming the panel 136 so that the ends 154, 156 are drawn laterally inward and beyond the ends of both loops 118. An exemplary process to accomplish this result includes depressing the actuator 146, integrally coupled to the projection 140, to vertically reposition the projection downward through the cavity 142 within the frame 122. This downward movement of the projection 140 is transferred to the panel 136, causing the panel to deform from a substantially planar position to a substantially bowed position (see
Referring to
The underside of the turret 124 also includes a series of arcuate guide rails 179 that define a circular interior region slightly larger (could be slightly smaller and occupy the inside) than the circular area occupied by the upstanding ring 172. In an alternate exemplary embodiment, the series of arcuate guide rails 179 could define a circular interior region slightly smaller than the circular area occupied by the upstanding ring 172, where the rails occupy the inside of the circular area. In either instance, the guide rails 179 set a boundary for movement between the turret 150 and ring 172, thereby allowing pivoting action between the two, but without providing significant lateral play. An semi-oval projection 180 extends from the underside of the turret 150 and occupies a portion of the interior region defined by the guide rails 179 and occupies an interior region of the circular ring 172 when the turret 150 is mounted to the frame 122. In exemplary form, the semi-oval projection 180 defines the corresponding cavity 148 that the actuator 146 and projection 140 travel within, which is generally centered within the circular interior region of the guide rails 179. Moreover, the semi-oval projection 180 is sized to have its longest lateral dimension being no greater than the diameter of the upstanding ring 172 so that rotation of the turret 150 will not be inhibited by the projection 180 binding against an interior wall of the circular ring 172. Recessed within the interior of the cavity 142 of the frame 122 is a ledge 181 that has a decreased diameter to allow throughput of the projection 140. A raised ring 187 prevents the actuator 146 from pushing the deformable panel 136 too far. If the ring 187 was not there, a user pushing on the actuator 146 would release the panel 132 from the tabs 132 and allow the panel 132 to fall from the edger base. Corresponding detents 183 extend from the underside of the turret 150 and lock onto the underside of the ledge 181 to inhibit upward movement of the turret 150 with respect to the frame 122, but still allow rotation about the central axis of actuator 146.
Referring to
The adapter 188 includes a rearmost threaded cavity 190 which is adapted to receive a male threaded projection from the extension shaft. On each side of the adapter 188 are pins 191 that fit within corresponding circular openings 192 on the underside of the turret 150 to facilitate pivotal movement between the turret 150 and the adapter 188. In this exemplary embodiment, the adapter 188 pivots about a pivotal axis extending laterally through the pins 191 and perpendicular the pivotal axis about which the turret 150 pivots with respect to the frame 122. It is to be understood that the pivotal range of movement between the turret 150 and the frame 122 is approximately 180 degrees, however, it is also within the scope of the invention to provide 360 degrees of pivotal range, while the pivotal range of movement between the adapter 188 and the turret 150 is approximately 25 degrees. However, those skilled in the art will readily understand that the pivotal range of movement may be changed between any of the components without departing from the scope of the present invention.
Referencing
Referencing
It is to be understood that the designations “reusable structure” 102 and “disposable structure” 104 are only for purposes of exemplary explanation and by no means limit application of the invention to structures where the plastic backing 106 and carpet 108 is disposable and the remainder is reusable. Moreover, the invention likewise encompasses structures 102, 104 that are both disposable or both reusable. By way of example, and not limitation, the exemplary liquid applicator 100 may be utilized in painting applications where the paint comprises a latex paint or any other type of liquid or semi-solid where this applicator would work effectively. In such circumstances, both structures 102, 104 may be cleaned using polar solvents in order to prepare the applicator 100 for subsequent use. Conversely, both structures could be disposed of after a single use or replaced by a completely new structures 102, 104, regardless of the paint utilized. Those skilled in the art will readily understand that the invention encompasses the elements shown and described, whether or not the elements are characterized as disposable or not.
Referencing
The exemplary disposable structure 308 is similar in all respects, but for the circular openings 306, to the first exemplary disposable structure 104. It should be noted, however, that the circular openings 306 could alternatively be shaped in any manner that allows a projection to pierce the openings. Likewise, the reusable structure 304 is similar in all respects, but for the vertical posts 302, to the first exemplary disposable structure 102.
These vertical posts 302 are operative to limit the amount of pressure a user can apply to the disposable structure 308. Principally, when a user attempts to apply a greater amount of pressure than necessary to maintain the disposable structure 308 in contact with the substrate to which the liquid is being applied, the posts project all the way through the openings 306 and “bottom out” and contact the substrate so that excess pressure exerted by the user on the reusable structure 304 is born by the substrate rather than the disposable structure 308. Without these pressure limiting features, the disposable structure 308 would bear the pressure and generally result in excess liquid leaching out, causing drips or streaking during liquid application. Conversely, under proper pressure application conditions, the posts 302 remain recessed within the openings 306 and not in contact with the substrate so that pressure applied to the reusable structure 304 is born by the disposable structure 308 contacting the substrate.
It is to be understood, however, that alternate pressure limiting features may be incorporated into the disposable structure 308. Exemplary pressure limiting features include, without limitation, selectively placed stiffer fibers in the pad to limit the amount of travel between the wall and pad backing thereby reducing paint squeeze out, as well as embedded posts in the pad that bottom out on the wall when a predetermined pressure is exceeded. In exemplary form, the orientation of the stiffer fibers is a matter of design choice and may include incorporating stiffer fibers than those of the bulk pad, where the stiffer fibers have a height less than that of the remainder of the bulk fibers. Those skilled in the art will be familiar with the alternatives possible in view of the foregoing disclosure.
Referring to
Following from the above description and invention summaries, it should be apparent to those of ordinary skill in the art that, while the methods and apparatuses herein described constitute exemplary embodiments of the present invention, the invention contained herein is not limited to this precise embodiment and that changes may be made to such embodiments without departing from the scope of the invention as defined by the claims. Additionally, it is to be understood that the invention is defined by the claims and it is not intended that any limitations or elements describing the exemplary embodiments set forth herein are to be incorporated into the interpretation of any claim element unless such limitation or element is explicitly stated. Likewise, it is to be understood that it is not necessary to meet any or all of the identified advantages or objects of the invention disclosed herein in order to fall within the scope of any claims, since the invention is defined by the claims and since inherent and/or unforeseen advantages of the present invention may exist even though they may not have been explicitly discussed herein.
The present application claims the benefit under 35 U.S.C. §119 to U.S. Provisional Patent Application Ser. No. 60/901,212, filed Feb. 12, 2007 and titled “PAINT EDGER,” the disclosure of which is hereby incorporated by reference.
Number | Date | Country | |
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60901212 | Feb 2007 | US |