U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5983411

Toilet Tank Aquarium

A new toilet tank assembly aquarium for housing aquatic creatures.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 182/33 - Chair or stool


Subclass of Class 182 - Fire escape, ladder, or scaffold
Definition: Device comprising a ladder convertible to a support for
No. of patents: 49
Last issue date: 05/22/2012


1    
NumberTitleIssue Date
8181739Spa stair apparatus and methods with convertible steps
A spa or hot tub stair assembly or apparatus having at least one step which is convertible by repositioning to provide different shaped sides. The different shaped sides can be used to better fit the outer shape of the associated spa. The individual step or steps ar...
05/22/2012
8141680Portable stepping system
A stepping platform includes an upper step platform and a lower step platform. The stepping platform may be manually moved from a stored position to a deployed, and vice-versa. The upper step platform includes a tread surface and side walls that cooperate to define ...
03/27/2012
7828117Foldable chair and ladder combination
A combination chair and ladder assembly including a center leg, a rear leg and a front leg wherein the rear leg is pivotally connected to the center leg and swings outwardly away from the center leg. The assembly includes a lower step or platform assembly including ...
11/09/2010
7361123Exercise bench methods and apparatus
An exercise bench includes a back support and first and second legs pivotally connected to respective ends of the back support. The legs are pivotal between positions extending generally perpendicular to the back support, and positions extending generally parallel t...
04/22/2008
7278515Foldable scaffold
A foldable scaffold is convertible between a use position and a folded position. In the use position, the scaffold may be used to support one or more people standing thereon. In the folded position, the scaffold may be more compact and easy to carry or store. ...
10/09/2007
7249746Closed-cell foam end cap riser
A multi-piece display device for the point-of-sale display of produce and other damageable items, manufactured out of a closed cell foam material and of solid construction, with each piece being a monolithic, flexible support block, whereby each of said support bloc...
07/31/2007
7188844Seating apparatus
Seating apparatus features a body including a seat and a lid which is pivotable with respect to the body between a retracted position and an extended position in which the lid defines a cover for the seat. In the retracted position, the lid cooperates with the body ...
03/13/2007
7143865Fishing chair having a sand stabilizer
A fishing chair having a sand stabilizer is disclosed. The fishing chair includes a front frame, a back frame, a chair frame and a stabilization frame. The chair frame is pivotally connected to at least one of the front and back frames. The stabilization frame is pi...
12/05/2006
7097241Mechanic's seat and step stool
A combination step stool and mechanic's seat in the form of a molded plastic, generally parallelepiped configuration includes a seat on one side supported on casters on the opposite side with a step stool surface adjacent the backside of the seat and spaced from a f...
08/29/2006
7048091Portable lifeguard chair
A portable chair is disclosed having a seat, a frame that supports the seat, a ladder that provides access to the seat; and a hollow tank that holds a liquid mass, connected to the frame. The frame includes first and second side supports each having a forward suppor...
05/23/2006
7025416Resin chair with removable desk top
A chair having a pair of channels for receiving the posts of an independent, removable desktop. A locking mechanism is provided to secure one of the desk posts within its receiver channel. The locking mechanism may be easily released to extract the desk post from th...
04/11/2006
7017708Recessed step
This device will allow the user access to a platform and also use the device as an additional step. It will be easy to move and easy to stow. Unlike a footstool it can be easily stowed under cabinets or chairs. A hole in the center section, which is the step, allows...
03/28/2006
7007771Collapsible stool
A collapsible stool to provide additional height for small children undergoing toilet training, comprising: a substantially horizontal top plate of generally rectangular shape with an upper surface and a lower surface; four protrusions integral with the lower plate ...
03/07/2006
6966404Folding step stool
A step stool includes a step and at least two legs coupled to the step. The step stool further includes a locking mechanism that, when activated, allows the legs to fold parallel to the step. ...
11/22/2005
6926119Folding steps
A climbing aid for assisting people to move up or down to different levels has steps that can be folded into attached integral handrails that circumscribe the steps when folded so that no parts extend outside of the boundaries of the handrails. ...
08/09/2005
6890026Folding chair construction
A folding chair constructed of synthetic polymeric material and having an aesthetic appearance simulating that of a traditional wooden folding chair, while incorporating structural features for facilitating uniform and stable stacking of like chairs, and for providi...
05/10/2005
6886660Slip-resistant step stool and a method of manufacturing the same
A slip resistant step stool includes a step surface with four legs extending downward. A slip resistant surface is bonded to the step surface. The slip resistant surface may be disposed in a pocket and have a ridge surrounding it. The slip resistant surface can be a...
05/03/2005
6843347Step stool
A multipurpose step stool includes two substantially parallel, congruent, triangular side support members. The triangular side support members each include first, second, and third resting edges adapted to contact a supporting surface such as a floor. The first trea...
01/18/2005
6568506Portable child's stool with storage compartment
A collapsible step stool with a storage cavity for storing a wipes container is described that includes a platform having upper, side and end walls that together form a storage cavity beneath the upper wall; a removable support shelf with a first access o...
05/27/2003
5725069Extendable pyramid ladder system
A new Extendable Pyramid Ladder System for providing a compact stable ladder system which allows the user to access heightened areas by standing on a broad platform while simultaneously providing maximum stability, and for providing compact storage by fol...
03/10/1998
5715910Stairway platform
This invention relates to a stairway platform device which is used upon a stairway to provide a stable base to assist an individual in reaching the highest portions of a wall during painting and/or wallpapering activities. The stairway platform device gen...
02/10/1998
5641034Step stool having integral side storage compartments
A stepstool (10) is disclosed having a central planar top platform (14), four support legs (20,22,24,26) for supporting the platform, and a pair of storage receptacles (36,38) extending outward in cantilever fashion from opposite sides of the stool. The r...
06/24/1997
5638913Adjustable height step-on container
A portable container device for carrying various items such as tools, instruments and photographic equipment has a flat top or cover strong enough to provide an elevated platform for a user. To raise the user even more when required, the device is provide...
06/17/1997
5518084Portable step
A new and improved portable step comprising a top platform having a front portion that extends downwardly therefrom. The top platform has a metal edging around a periphery thereof. The metal edging serves to protect the periphery from chipping and splitti...
05/21/1996
5421636Child stool and high chair
A child's stool and high chair configured as a pyramidal frustum from a box-like frame upon which a chair and table portion are detachably mounted to provide a high chair. When the chair and table portion are removed from the box-like frame, a stool is fo...
06/06/1995
5107957Trash ladder
A stepladder arranged to conceal a waste receptacle, wherein the stepladder includes a plurality of horizontal steps disposed at increasing heights; two side panels spaced apart and having indentations forming horizontal edges for supporting the steps, th...
04/28/1992
5048639Portable cooler assembly
A portable cooler assembly (10) for use on a boat including an insulated container (12) for storing and insulating beverages including an insulated door (24) disposed in the container (12). The assembly (10) includes a plurality of steps (24) having two h...
09/17/1991
4950033Portable stool with weight distribution flange
A stool which includes a box-shaped support, a cushion, and a tether is disclosed. The support includes a pedestal, which surrounds an interior section, and an inwardly extending seat at a top side of the pedestal. An exterior side of the seat forms a sli...
08/21/1990
4832355Multi-function rack structure for carrying a jack
It is a multi-function rack structure for carrying a jack, and the rack mainly comprises a chassis, a seat and tool racks. The seat is fixed on one end of the chassis; the bottom of the chassis is provided with casters, while the top surface of the chassi...
05/23/1989
4763757Saw horse
A support device having two end members, a pair of spacer members with hinges at their outer ends and intermediate hinges at their inner ends and swingable between a stored position and an extended position, a pair of transverse support panels with hinges...
08/16/1988
4753320Convertable step stool
A stool with two major parts is disclosed. One way of fastening the parts together yields a rigid free-standing stool. In the alternate configuration a folding stool is formed, which can be fastened to the interior of a base cabinet so that the platform p...
06/28/1988
4679655Convertible stand
A portable support stand, convertibly used either as a stool or tree stand platform, is configured with adjustably hinged frame members, at least one of which is furcated, for being interspaced, crossed and pivotally joined to provide a stool when fitted ...
07/14/1987
4648481Multipurpose aluminum folding ladder equipped with a detachable stand-on board and supporting handrails
The present disclosure is related to a multi-purpose aluminum folding ladder having a detachable stand-on board and a pair of supporting handrails mounted thereto when used as a stepladder, and more particular to a foldable ladder which can be converted i...
03/10/1987
4624341Elevatable stool construction
An extensible foot stool apparatus (10) comprising a generally conical housing unit (11) having retractable roller units (12), and adapted to slideably and releasably receive a generally cylindrical primary weight supporting unit (13) in both a retracted ...
11/25/1986
4618183Multi-purpose furniture piece
The invention relates to a multi-purpose furniture piece consisting of a rectangular seat plane having two longitudinal sides and two transverse sides, and four legs rigidly connected to the seat plane at the corners thereof and extending perpendicularly ...
10/21/1986
4607856Combination cart and boat boarding steps
A combination cart and boat boarding steps wherein a wheeled cart includes a load carrying body portion which when inverted is shaped to provide steps for use in boarding marine craft which are tied at dockside and wherein the steps may be selectively and...
08/26/1986
4557350Folding chair capable of converting into step ladder
A folding chair in which two pairs of linkage means are mounted on the opposite sides of a seat having two imbricating seat portions, the two seat portions being disposed one after the other on the same horizontal plane in forming the folding chair with b...
12/10/1985
4541507Universal folding ladder for boats
A universal folding ladder for inflatable boats and pleasure craft comprising a tubular structure intended for straddling the gunwale of a boat and including at least two L-like elements extending parallel to each other and being interconnected at the end...
09/17/1985
4440264Locking assembly for a folding seat
An improved locking assembly for a folding seat is disclosed. The assembly includes a support plate adapted to be fixedly mounted to a step at its lower surface. The seat is supported by a support member when the seat is in its support position. The assem...
04/03/1984
4437413Folding structure employing a Sarrus linkage
A Sarrus linkage is a type of folding linkage or structure in which two opposed links are connected by two sets of connecting links, each of which sets includes two separate links. The links of such a linkage are hinged together in such a manner that the ...
03/20/1984
1    
 
Sign InRegister
Username  
Password   
forgot password?