A fluid transference system, including: (a) at least two inflatable objects; (b) at least one variable-state fluid transfer conduit, interposed between a first and a second inflatable objects, the variable state conduit configured to allow fluid flow there-through in an open state and to disallow the flow in a closed state. A fluid transfer system, including: (a) an entry port; (b) an exit port; (c) a unidirectional main conduit defined between the entry port and the exit port; (d) an intermediate port; and (e) an intermediate conduit defined between the intermediate port and the main conduit, intersecting the main conduit between a first unidirectional valve and a second unidirectional valve, the main conduit defining a unidirectional fluid flow.

A user may often be reading the same content on multiple different electronic devices, and this user may also wish to read the same content on printed pages of a physical book. In this case, described is a hybrid print medium that includes both printed pages and a computer system allowing a user to synchronize a current reading location in the hybrid print medium with the same content being read on one or more electronic devices. In different cases, this synchronization may include a synchronization service or the synchronization may occur directly between a hybrid print medium and an electronic device storing an electronic version of the content within the hybrid print medium.

A notepad for use in wet environments preferably having a base member, a plurality of sheets of natural and/or synthetic water resistant and/or waterproof paper stacked together to form a pad, wherein the base member is preferably folded over to cover the top edge of the pad, and preferably one or more securement members extending through a region where the base member is folded over the pad. Methods of using notepads, notepad assemblies, and associated individual notepad sheets are also disclosed.

An erasable, polymeric paged writing book for small children, with textured, flexible, bordered pages and an internal spine to spread the book flat. The pages have rounded corners. The book closes by hook-and-loop tab. The pages have a smaller profile than the covers, for resistance to wear and distortion. A fold-away pocket holds chalk and grease pencils. Optionally, a pleated storage compartment is on one of the covers. The pages have a smaller profile than the covers, for resistance to wear and distortion.

A sheet of material that reduces or eliminates the incidence of bleed-through and show-through, thereby enabling a user to prepare artwork, sketches, designs, etc. on both sides of the sheet of material, without the incidence of bleed-through or show-through. The sheet of material includes a first substrate, a second substrate, and an adhesive material positioned between the first and second substrates to operatively join the first and second substrates to each other. The adhesive material acts as a moisture barrier, thereby preventing ink or moisture from passing therethrough and saturating the second substrate when ink or moisture is applied to the first substrate and vice versa. The adhesive also serves as a light barrier, thereby reducing or eliminating show-through on the second substrate when ink or moisture is applied to the first substrate and vice versa. Multiple sheets of material may be bound into a sketch book or pad.

The present magnetically bound media with reattachable pages exemplarily comprise a magnetic binding, one or more reattachable pages, and one or more conductive metals attached to the pages and magnetically attracted to the magnetic binding. Thus, a user of the magnetically bound media may disengage one or more of the pages from the magnetic binding and reintegrate those pages into the magnetic binding in any order. This allows for customization of information presentation, sequence, and selection. The small size of the magnetic binding also affords a smaller minimum apparatus size and a quicker means with which to remove, rearrange, and reintegrate pages. Furthermore, the magnetic binding permits pages to be secured in a more professionally presentable manner without punched holes. In an exemplary embodiment, the magnetic binding is a cylindrical or a prismatic, rectangular neodymium or samarium alloy secured within the bound media by a magnet cover or clasp.

There is provided a method for producing a reusable writing surface comprising: providing a sheet substrate having first and second surfaces; providing a water-based film disposed upon at least one of the first and second surfaces, wherein the water-based film has a satin finish; and providing a first UV film over the water based film, wherein the first UV film has a gloss finish, thereby resulting in a surface suitable for writing with a dry erasable pen and allowing erasure of the writing.

A method of reusing a notebook provides a notebook having a synthetic-paper page. The method also provides a thermochromic ink pen which, when used to write on the synthetic paper page, leaves thermochromic ink markings. The method further provides a moisture carrier configured to have a liquid diffused therein. The moisture carrier is configured to erase the thermochromic ink markings from the synthetic-paper page by contacting the thermochromic ink markings when the moisture carrier is moist. The method then writes with thermochromic ink on at least a portion of the synthetic-paper page. Liquid is diffused in the moisture carrier, and the portion of the synthetic-paper page having the thermochromic ink is wiped with the moist moisture carrier, such that the thermochromic ink is erased from the synthetic-paper page.

A book is provided which comprises front and back covers (12,14) and a plurality of pages (16) bound between the covers. A plurality of the pages (16) each have an aperture (18) and the resulting plurality of apertures cooperate with the back cover (14) to define a recess (22) extending through the pages. The book further comprises a container (24) attached to the back cover (14) so as to be located in the recess (22). The book may have multiple recesses and associated containers.

An instruction manual is constituted by pages composed of different types of paper, such as plain paper, thin paper and thick paper. Each of the plain paper, the thin paper, and the thick paper constitutes a plurality of pages. The instruction manual describes that, for example, the paper of page 1 to page 10 corresponds to plain paper, the paper of page 11 to page 21 corresponds to thin paper, and the paper of page 22 and subsequent pages corresponds to thick paper, and describes that pages that are thicker than the thick paper of page 22 and subsequent pages may not be properly turned. The user views and touches pages composed of these different types of paper to recognize the differences among plain paper, thin paper, and thick paper, and thereby more correctly understands the contents contained in the instruction manual.