...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| RE39889 | Implement for preparing seedbeds An implement for preparing seedbeds and lawns includes a main frame member upon which are mounted scarifying teeth to penetrate the soil and tines which work the soil and prepare the final grade after the soil has been scarified. A subframe is pivotally mounted on t... | 10/23/2007 |
| 6182385 | Rock and material loading system A rock and material loading system that is removably attachable to a loader bucket for loading material such as rocks into the loader bucket. The inventive device includes a pair of brackets attached to the upper rear portion of a loader bucket, a pair of... | 02/06/2001 |
| 6161626 | Sand trap conditioner A sand trap rake arranged particularly for use on a golf course and with fingers which penetrate the sand for plowing the sand. There is an adjustment relative to the plowing fingers which permits the fingers to be angulated so that they can be dragged th... | 12/19/2000 |
| 6085847 | Sand trap conditioner A sand trap rake arranged particularly for use on a golf course and with fingers which penetrate the sand for plowing the sand. There is an adjustment relative to the plowing fingers which permits the fingers to be angulated so that they can be dragged th... | 07/11/2000 |
| 5862764 | Method and apparatus for a floating frame field harrow A method and apparatus for a harrow is provided, and more particularly to a harrow implement with a terrain following frame, able to be pulled by a tractor. The improved harrow includes a main frame that supports at least a floating frame on which harrowi... | 01/26/1999 |
| 5806605 | Implement for preparing seedbeds An implement for preparing seedbeds and lawns includes a main frame member upon which are mounted scarifying teeth to penetrate the soil and tines which work the soil and prepare the final grade after the soil has been scarified. A subframe is pivotally m... | 09/15/1998 |
| 5806606 | Hydralic harrow lift A hydraulic harrow lift including a cultivator assembly, a harrow assembly, and a pair of spaced linear harrow arms fixedly coupled at outboard ends thereof to the harrow assembly. The harrow arms further have inboard ends pivotally coupled to the cultiva... | 09/15/1998 |
| 5797460 | Straight bar tillage implement A tillage implement includes straight bar ripper structure with a main forward toolbar supporting subsoiler shanks from special brackets which can also support coulters ahead of the shanks independently of additional toolbar structure. An optional rear or... | 08/25/1998 |
| 5794714 | Finish dirt scraper This invention relates to a dirt leveling device adapted for towing by a tractor which is characterized by one or more chisels attached to a transverse shaft on the front of the dirt leveling device having a rotatable relationship thereto, and a dirt leve... | 08/18/1998 |
| 5407014 | Gravel scarifying device A scarifier/grader apparatus comprises, in combination, a tractor connected through a 3-point hitch to a scarifier/grader attachment wherein: the tractor is adapted to be operably connected through a three point hitch to a scarifier/grader attachment comprisin... | 04/18/1995 |
| 5183119 | Anti-snag plowing system An anti-snag plowing system suitable for clearing mines in the Middle East is disclosed. Advantageously, the plowing system has also been found to be an efficient and effective soil conditioner, making it a useful farming tool as well. The plowing system ... | 02/02/1993 |
| 5168936 | Trailing harrow rotatable to an up-side-down storage position A trailing harrow attachment is pivotally connected to the aft end of support arms for rotation about a transverse axis between a field-working position wherein the harrow tines engage the soil, and a non-operative position wherein the harrow is rotated a... | 12/08/1992 |
| 4821809 | Multiple section drawbar A drawbar having a boom with at least two pivotally connected sections which in a field position extend generally transversely of the direction in which the draw is drawn. Each section carries at least one first soil working device and at least one other ... | 04/18/1989 |
| 4800964 | Compact shank assembly with leaf spring A compact, leaf spring biased shank assembly with a shank bracket which clamps to a tube and leaves the upper portion of the tube relatively unobstructed to eliminate interference with the lift mechanism and/or implement frame. The shank bracket includes ... | 01/31/1989 |
| 4593766 | Strafing pit conditioning apparatus with magnetic sweeper A crawler tractor with a dozer blade and fitted with accessories to loosen the ground in the strafing pit area of an Air Force gunnery range and simultaneously remove from the ground rocks the size of a man's fist and larger and spent projectiles. The tra... | 06/10/1986 |
| 4554977 | Combined harrow and harrow bar A cultivator of the type having a vertically movable harrow bar followed by a vertically movable harrow roller. A plurality of springs biases the roller down against the ground. The springs are operatively connected to the harrow bar in a manner to have v... | 11/26/1985 |
| 4382474 | Soil cultivating implement comprising a tined harrow and a trailing blade rotor In a soil cultivating implement comprising a harrow with tines and a trailing bladed rotor for smoothing the furrowy nature of the field surface left behind the rear row of harrow tines, the blades of said rotor are arranged in groups with intermediate sp... | 05/10/1983 |
| 4381823 | Combination fertilizer applicator and tillage implement with adjustable sweep assemblies Apparatus for combining light tillage and application of liquid fertilizer in a single implement includes a frame having at least a forward and a rear mounting bar. A plurality of sweep assemblies are mounted to the forward mounting bar. Anhydrous fertili... | 05/03/1983 |
| 4368783 | Universal auxiliary implement mount A universal auxiliary implement mount for agricultural implements utilizes spaced, parallel, triangular plate members for attachment and selective positioning on respective tool bars of different main implements. A draw tongue is pivotally attached to one... | 01/18/1983 |
| 4361191 | Seedbed preparation implement Through adaptation of and improvement upon secondary, minimum tillage techniques, there is provided a single pass, seedbed method and agricultural machine, utilizing reduction, incorporation, aeration and other procedures, capable of effectively handling ... | 11/30/1982 |
| 4342366 | Soil mulcher A mulcher that includes a longitudinal member having one end adapted for connection to a mobile power source, a beam member extending transversely of the connecting member and connected thereto and also having a downwardly opening channel configuration, a... | 08/03/1982 |
| 4304304 | Planter V-wing and attachment therefor Commercially available seed planters have V-wings mounted immediately in front of the seed openers to sweep clods away and skim off the top player of the bed. However, V-wings are not effective in trashy and sticky soils. The attachment of the present inv... | 12/08/1981 |
| 4220211 | Harrow with tine stop therefor In a farm harrow, a U-shaped clamp mounts channel-shaped bars to harrow tine supporting shafts. The shafts transversely extend through longitudinal channel-shaped carrier arms and are rotatably mounted therethrough. The bars are mounted within each respec... | 09/02/1980 |
| 4127341 | Adjustable deflection limiting element for trailing arm assembly For use in a trailing arm assembly having a support frame and a spring-loaded trailing arm pivotally mounted on the support frame, an adjustable stop element is provided for limiting the downward deflection of the trailing arm. The stop element is a rotat... | 11/28/1978 |
| 4127178 | Earth working attachment An attachment for an earth working apparatus having a mobile frame with central and wing sections, each with forward and rear frame members and a plurality of earth working members thereon. The attachment includes a plurality of reach arms for each sectio... | 11/28/1978 |
| 4124079 | Driven implement connected to rockable motor of a vehicle A self-propelled tiller-planter including a motor providing hydraulic motive power for various operating mechanisms. A tiller pushed by said planter and hydraulic means is provided for lifting and lowering the tiller assembly into inoperative position abo... | 11/07/1978 |
| 4091878 | Ground working implement An agricultural implement for pulverizing the top layer of the soil. It comprises a positively coupled pair of rollers rolling over the ground at unequal surface speeds so that at least one of the rollers is constantly slipping. A harrow is mounted in fro... | 05/30/1978 |
| 4037545 | Machine for distributing material Machine for seeding designed to be pulled by a tractor and outfitted with seed drills for depositing of the seeds in the soil. A furrow opener is mounted forward of the seed drill, and a furrow closer is mounted aft of the seed drill. The furrow closer is... | 07/26/1977 |
| 4029155 | Floating mount for agricultural finish tools A trailing floating mount for agricultural finish tools is connected to the wheeled frame of an implement carriage and includes an elongated, longitudinally oriented finish tool draw bar attached to the carriage by a double-stop bracket which allows the b... | 06/14/1977 |
| 4005756 | Lightweight pasture harrow A lightweight pasture harrow for breaking up and scattering piles of manure and like material in a pasture including a shaped wire mesh framework secured to a front crossbar which provides a tow bar for pulling the harrow across a field, or pasture. The w... | 02/01/1977 |
| 4002413 | Adjustable mounting for auxiliary farm implement An auxiliary implement adapted for use in combination with different makes and models of first implements includes an adjustable mounting for securing the auxiliary implement to different sizes and shapes of frame members in the first implements. The moun... | 01/11/1977 |
| 3991831 | Combination post-plowing cultivating implement and field drag A field drag particularly adapted for use in conjunction with a post-plowing cultivating implement includes a mounting bar section pivotally secured to the frame of the implement and extending in a rearward direction behind the implement. A plurality of s... | 11/16/1976 |
| 3976145 | Finish tools with mounting bracket therefor An inverted U-shaped bracket is designed to flexibly mount transverse harrow tine supporting bars for independent movement of each other upon longitudinally extending implement carrier arms to permit drag angle adjustment and ability to back up without di... | 08/24/1976 |