Quotables
"I think there is a world market for maybe five computers."
Thomas Watson, chairman of IBM ; 1943
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.
| Number | Title | Issue Date |
| 7156245 | Device for demountable assembly of the jib elements of a tower crane The invention is concerned with the demountable assembly of latticework jib elements comprising upper and lower chords connected to one another by means of triangulation bars. In the region of the upper chords, there is provided an assembly by shackle, tenon and a c... | 01/02/2007 |
| 7108272 | Trailer hitch cushioning device and method for using same The present invention includes a base frame or hitch receiver which can be attached to the under surface of a pulling vehicle. A hitch frame is pivotally mounted to the base frame for pivotal movement about a horizontal axis. An air bag is positioned between the bas... | 09/19/2006 |
| 7029020 | Sway control conversion bracket A bracket, apparatus and method are provided for adapting a simple draw bar and hitch ball arrangement to allow connection to a sway control device. The bracket includes an aperture for receiving the threaded stem of the hitch ball, a notch for receiving and engagin... | 04/18/2006 |
| 7025370 | Trailer hitch head and method of manufacturing A hitch head is disclosed as part of a trailer hitch. The hitch head may include an upper surface having an opening for receiving a stem of a hitch ball. A back side of the hitch head may include a pair of ridges for defining an area for receiving an attaching membe... | 04/11/2006 |
| 6883820 | Offset coupler for gooseneck trailer An offset coupler device for coupling a gooseneck trailer with a gooseneck hitch ball is provided. The coupler has a first member spaced apart from a second member by an offset plate. A ball coupler is provided at a lower end of the second member. In use, the first ... | 04/26/2005 |
| 6869093 | Trailer and kit A trailer comprises two elongate panels as loading ramp panels. A wheel assembly supports the panels and a trailer drawbar having a first end for connection with a draft vehicle and a second end which is secured with the wheel assembly by a first fastener and a seco... | 03/22/2005 |
| 6725855 | Portable tailgating apparatus A raisable and lowerable platform that houses a removable charcoal or gas grill and a removable cooler chest, with a storage compartment between the two, a telescoping flagpole mounted to the platform, and a fold down table attached on both ends of the platform to p... | 04/27/2004 |
| 6722682 | Trailer hitch with load adjustment A weight distributing hitch system is provided with a shank and a head which is angularly adjustable relative to the shank. The head includes a plurality of adjustment teeth which are engaged by a toothed caster having corresponding teeth. The toothed caster has a m... | 04/20/2004 |
| 6575155 | Portable grill and cooler apparatus A raisable and lowerable platform that houses a removable charcoal or gas grill and a removable cooler chest, with a storage compartment between the two, a telescoping flagpole mounted to the platform to display team colors, and a fold down table attached... | 06/10/2003 |
| 6419257 | Adjustable length cam arm for weight distributing hitch assembly A weight distributing hitch assembly for towing a trailer behind a towing vehicle includes a ball mount head, a pair of spring bars, a pair of adjustable length cam arms for supporting projecting ends of the spring bars, a pair of lift units carried on th... | 07/16/2002 |
| 6142500 | Adjustable, weight distributing trailer hitch apparatus with spring dampening assembly A weight distributing hitch apparatus includes a drawbar assembly, which is interconnected to a tow vehicle and includes an elongate bar and a component that is pivotally interconnected and angularly adjustable relative to the bar. A hitch head assembly i... | 11/07/2000 |
| 5890728 | Extension coupling for use with trailers An extension coupling releasably interconnects a trailer to a tow hitch on a tractor vehicle. The coupling includes a mount that is secured to the trailer. An elongated arm has a proximal end portion secured to the mount. A connector pin is disposed on a ... | 04/06/1999 |
| 5868414 | Weight distributing and sway controlling hitch assembly A weight distributing and sway controlling hitch assembly for towing a trailer behind a vehicle includes a hitch bar for mounting to a vehicle. The hitch assembly also includes a ball mount head carried on the hitch bar and a hitch connector carried on th... | 02/09/1999 |
| 5725233 | Portable tongue for trailers A portable (removable) tongue for connecting a house trailer to a towing vehicle for towing the trailer from one location to another with the tongue being adapted for easy and rapid disconnection from the towing vehicle and trailer. The tongue is adapted ... | 03/10/1998 |
| 5628525 | Anti-sway friction pads for trailer hitch A friction pad assembly for supporting a spring bar of a weight distributing hitch on a trailer includes a pad of high friction material and a mounting bracket. Preferably the friction pad provides a coefficient of friction of at least 0.35. The bracket i... | 05/13/1997 |
| 5580076 | Automatic trailer hitch system A fully integrated, three-stage automatic weight distributing hitching system for a trailer and towing vehicle which utilizes a funnel-shaped receiver system (100), a head assembly (D) with elongated shank (160), spring bars (C) and chains (B), and a moto... | 12/03/1996 |
| 5562298 | Weight distributing hitch assembly A weight distributing hitch for towing a trailer includes a hitch bar, a ball mount head and spring bars for distributing the weight of the trailer relative to a towing vehicle. The spring bars include mounting trunnions and the ball mount head includes c... | 10/08/1996 |
| 5465991 | Weight distributing hitch A weight distributing hitch for towing a trailer behind a vehicle includes a hitch bar for mounting to the vehicle and a ball mount head for mounting on the hitch bar at a selected tilt angle. A pair of spring bars are mounted to the ball mount head. Thes... | 11/14/1995 |
| 5421599 | Shock absorbing apparatus for tow couplers The invention discloses a telescoping shock absorbing apparatus which uses a pair of square tubular members with a rod disposed interiorly and axially within one of the members for transmitting towing force. Two springs are disposed over and connected to ... | 06/06/1995 |
| 5387002 | Wheeled support for slip-in camper The invention relates to a wheeled trailer support device for use with a slip-in camper which is engaged to the box of a pickup truck. The invention enables an individual to use a slip-in camper of extended length with a standard sized box of a pickup tru... | 02/07/1995 |
| 5375867 | Weight distributing hitch A weight distributing hitch for towing a trailer behind a vehicle includes a hitch bar for mounting to the vehicle and a ball mount head for mounting on the hitch bar at a selected tilt angle. A pair of spring bars are mounted to the ball mount head. Thes... | 12/27/1994 |
| 4815752 | Lift unit for weight distributing trailer hitch The lift unit comprises a bracket portion that is secured to the trailer tongue and a hinge portion that pivots on the bracket portion about a horizontal axis to raise and lower a chain for flexing and relaxing a spring bar that when flexed, serves to tra... | 03/28/1989 |
| 4792151 | Self-aligning, self-locking and self-leveling trailer hitch assembly A trailer hitch comprising a housing mountable on the vehicle, a ramp sloping downwardly and rearwardly from the housing away from the vehicle, and two laterally opposed pivotable jaws having recesses which when closed define a socket or pocket in which t... | 12/20/1988 |
| 4679812 | Apparatus for simplifying the launching and retrieval of a boat from its trailer An apparatus for simplifying the launching and retrieval of a boat from its trailer is provided. The apparatus includes a longitudinal body, an electrical or manual winch, a coupler for mounting to the trailer hitch ball on the towing vehicle, a trailer h... | 07/14/1987 |
| 4614353 | Storage assembly for trailer hitch torsion bars A storage assembly for trailer hitch torsion bars mounted on the trailer tongue having a pocket for receiving the greased tip of the torsion bar and a bracket for supporting the bar in the pocket.... | 09/30/1986 |
| 4313616 | Speed responsive trailer stabilizer with zero slack A trailer stabilizer is comprised of a hydraulic assembly having a pair of hydraulic units for providing viscous fluid resistance to relative turning movements between a trailer and a towing vehicle. The assembly includes flow controls for varying turning... | 02/02/1982 |
| 4312516 | Trailer hitch A trailer hitch embodies simple weight adjustment and trailer side sway control. In addition, up-down motion transmission between the towing vehicle and trailer is dampened; a safety stem and receptacle interconnects the hitch and towing vehicle; a safety... | 01/26/1982 |
| 4275897 | Trailer equalizer spring bar holder Disclosed herein is a holder for use with trailer equalizer spring bars which serve to distribute the forces that occur when the tongue weight is applied to a towing vehicle hitch, for example. The holder for use when the spring bars are not being deploye... | 06/30/1981 |
| 4253680 | Hitch facilitating A hitch for allowing a trailer to be first disconnected from a vehicle, to be then jacked so it is level with the support surface, and then be automatically jacked back to the level of the vehicle so that it can be easily reconnected to the vehicle. A swi... | 03/03/1981 |
| 4248451 | Hitch assembly Hitch assembly for use in interconnecting a towing vehicle having a coupling element and a drawn vehicle includes a coupling having first and second components, one removably receivable within the other to permit preselected relative positioning therebetw... | 02/03/1981 |
| 4230333 | Tow stabilizer A tow stabilizer device intended to distribute part of the load at the end of a tow frame on a level with the swivel joint of the coupling to the front and rear wheels of the towing vehicle and to the wheels of the tow frame while eliminating the swaying ... | 10/28/1980 |
| 4213627 | Trailer hitch In an anti-sway type trailer hitch having rearwardly-extending load-levelling bars between a hitch connector element and the side rails of a trailer tongue, braking force is applied between the connector element and a pair of conjointly pivotally mounted ... | 07/22/1980 |
| 4211427 | Trailer hitch A weight distribution trailer hitch which has a pair of spring rods pivotally connected at their forward ends on vertical-axis pivot means adjacent the hitch ball and at their rear ends in a tension relation to the trailer tongue. Cooperating means on the... | 07/08/1980 |
| 4198073 | Trailer hitch A trailer hitch embodies simple weight adjustment structure and trailer side sway control mechanism. In addition, apparatus is provided to dampen up-down motion transmission between the towing vehicle and trailer; a safety stem and receptacle interconnect... | 04/15/1980 |
| 4053174 | Load transferring trailer hitch device A jack carried by the draft tongue or A-frame of a trailer supports the front of the trailer during the coupling thereof to the hitch member of a towing vehicle and the jack is also utilized to tension the load transfer members which equalize the load on ... | 10/11/1977 |
| 4049288 | Trailer hitch A weight distribution trailer hitch which has a pair of spring rods pivotally connected at their forward ends on vertical-axis pivot means adjacent the hitch ball and at their forward ends in a tensioned relation to the trailer tongue. The pivotal mountin... | 09/20/1977 |
