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

Icon_funbox Bizarre Patents

Patent No. 5508049

Pizza Pie With Concentric Rings of Crust

A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.

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 254/338 - Plural elements


Subclass of Class 254 - Implements or apparatus for applying pushing or pulling force
Definition: Apparatus wherein two or more rotatable, cable-guiding,
No. of patents: 56
Last issue date: 10/18/2011


  2  
NumberTitleIssue Date
4719811Well pumping unit with counterweight
A well pumping unit including a derrick having first and second sheave sets attached near the top thereof, a drive mechanism, a counterweight, a polish rod assembly and cable members. The cable members form a closed loop extending from the polish rod asse...
01/19/1988
4706939Fire hydrant hoist
There is disclosed a hoist for lifting a fire hydrant from its underlying upright feeding pipe. The hoist comprises an inverted L-shaped post with a manually-operated cable winch. The post is supported on a semi-circular base collar which fits the top cou...
11/17/1987
4690376Mat transport rack
A stable movable metal frame mat transport rack useful for storing and transporting an entire three section wrestling mat. The rack contains a winch cable hoist mechanism for lifting and lowering the mat sections to and from storage positions on the rack....
09/01/1987
4674602Article storage system
A pair of wheel assemblies (26, 28) are vertically spaced apart and are supported for rotation about parallel axis (30, 38) by a common support frame (10). Each wheel assembly (26, 28) comprises a pair of wheels at its ends (38, 40). The wheels (34, 40) h...
06/23/1987
4600177Method of hoisting an automobile hard top
A hoist for lifting a hard top (10) from an automobile and storing it at the garage ceiling comprising a winch (25) for winding a cable (38) that passes through pulleys (39,41) fixed to the ceiling. The cable is fixed to a web strap (50) having end hooks ...
07/15/1986
4545595Method and apparatus for assisting in and facilitating the coupling of a trailer tongue to a vehicle latch
The present invention presents a method and apparatus for assisting in and facilitating the coupling of a trailer tongue to a vehicle hitch. An overhead structure extends over the trailer tongue and includes a pulley depending downwardly therefrom. Throug...
10/08/1985
4510663Method of installing multi-sections vertically acting doors
Multi-sections vertically acting doors of the prior art comprise a plurality of horizontally longitudinally extending sections that are pivotably connected and including rollable engagement with longitudinally separated trackways. Such prior art doors are...
04/16/1985
4399979Device for self-tailing a conventional winch drum
A device for self-tailing a conventional winch drum utilizing the motion of the hauled in line under load to provide, through a multiple sheave assembly, the tension on the free end of the line necessary to render the winch drum operational and properly h...
08/23/1983
4382325Heavy pipe joining system
A light weight, portable, self-contained pipe joining device and system for installing succeeding, very heavy, concrete pipe sections into the end of a preceding pipe section positioned in a trench. The pipe joining device includes a power operated winch ...
05/10/1983
4353307Towing device for use in the surf
There is provided an apparatus for towing surfers out into a body of water. The device includes an anchor in the body of water and a buoyant member connected thereto carrying a pulley adjacent the surface of the water. An endless flexible line is reeved a...
10/12/1982
4349179Control means for motion compensation devices
A control system for stabilizing a body suspended by a flexible line from a structure such as a ship, which is subject to uncontrolled oscillating movements, such as may be caused by wave motion, incorporates a winch (3) to which the line is attached, a p...
09/14/1982
4251059Apparatus for determining the reeving of a pulley system
Apparatus for determining reeving of a pulley system including head pulleys on a jib or boom of a crane and reeving pulleys opposite the head pulleys. There is provided a sensor which may be electrically, mechanically, optically or pneumatically operable ...
02/17/1981
4221364Chain block
A chain block having an attaching member connected to the load-free end link of a load chain entrained around a load sprocket wheel rotatably supported by and between a pair of lateral plates. The attaching member is pivotally mounted at one end portion t...
09/09/1980
4128960Weight arrestor
A weight arrestor for attachment to downriggers; the weight arrestor has an elongated coiled spring surrounding a downrigger cable. The spring radially flexes under stress exerted by the cable and slides up and down on the cable. The spring is adjustably ...
12/12/1978
4040774Apparatus for constructing concrete walls
In an apparatus for constructing high-rising, poured concrete walls, pairs of spaced-apart, upright supports are preliminarily mounted on a foundation and then detachably attached to both sides of at least a partially hardened level of concrete wall and a...
08/09/1977
3968952Assembly for pulling a line
The assembly for pulling a line comprises a frame, a power unit mounted on the frame and means for guiding a line from the power unit along the frame structure. The frame has a structural configuration that is adjustable to a plurality of working position...
07/13/1976
  2  
 
Sign InRegister
Username  
Password   
forgot password?