Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 7407017 | Locking mechanism The present invention relates to a method of securing a shaft at any point along its substantially vertical axis of movement, wherein the method includes a locking device that is moveable with respect to the shaft. The method is characterised by the step of moving t... | 08/05/2008 |
| 7387173 | Pile driver A pile driver including an apparatus for allowing relative movement between a hammer and a boom of an excavator. The apparatus includes a mounting plate mounted to the boom that interfits with and is slidable with respect to a frame rail mounted to the hammer. In op... | 06/17/2008 |
| 7331405 | Powered hammer device The present invention relates to a powered hammer device including: a hammer with at least a first and a second projection; at least one translation dog adapted to engage with said projections, and a drive mechanism capable of moving the translation dog substantiall... | 02/19/2008 |
| 7237706 | Drop hammer Embodiments of the present invention pertain to a drop hammer comprising a load, an actuator connected to the load, and a fluid circuit that is connected to the actuator and is connectable to a fluid source, such as a source of hydraulic power. The fluid circuit is ... | 07/03/2007 |
| 7175236 | Hammer for breaking concrete The hammer impact cracks the concrete, then separates the concrete from the steel and creates concrete aggregate. The hammer has a pair of arms with an angled portion for sliding on an angled portion of guide plates, which have a long surface in contact with the ham... | 02/13/2007 |
| 7063172 | Grounding rod driving device A driving assembly includes a driving device that is slidable along one or more vertical supports as the driving device drives a driving member into an object. The driving assembly may be suspended from a crane or other overhead support, whereby the vertical support... | 06/20/2006 |
| 6776242 | Pneumatic post driver A new sign post driver comprises a piston which rests upon a post, well pipe or piling to be driven into the ground and a weighted cylinder which reciprocates vertically to impact the piston on the downstroke. The cylinder is raised pneumatically for each stroke and... | 08/17/2004 |
| 6702037 | Post pounder having lateral impact resistant floating anvil A pile and/or post pounder utilizing a tracked floating anvil and having a continuous loop for lifting a tracked hammer. The pounder is adapted to be transported on, and powered by the hydraulic system on any mobile construction equipment. It safely holds... | 03/09/2004 |
| 6575253 | Automatic hammer system for standard penetration test A hammer system for automatically carrying out a standard penetration test is disclosed. A cylindrical housing, in which an anvil coupled to a drill rod is received, is supported by a first hydraulic cylinder coupled to boring equipment. A cylindrical ham... | 06/10/2003 |
| 6520268 | Post driver beams Readily available steel "I" beams being strengthened sufficiently (without introducing localised stresses that exacerbate the fatigue difficulty) over at risk regions and particularly adjacent the lower regions of the beam that hitherto have given rise to... | 02/18/2003 |
| 6439317 | Device for breaking concrete The present invention provides a device for breaking up a paved surface which attaches to a host transport, such as a skid steer or backhoe, having a hydraulic power supply and preferably comprises a closed hydraulic system which includes a regenerative a... | 08/27/2002 |
| 6334495 | Fluid operated percussion device A fluid-operated percussion device (1) having a percussive piston (3), which alternately executes a work stroke and a return stroke due to the effect of a control. To avoid no-load strikes, in one embodiment of the percussion device (1), the percussive pi... | 01/01/2002 |
| 6305480 | Post driving and earth boring machine A machine for driving posts, drills, large spikes, and the like work pieces into the ground, pavements, or wall structures. The machine comprises an elongated tower, a carriage, a hammer, a combination of an elongated two-way cylinder and a pulley system,... | 10/23/2001 |
| 6257352 | Rock breaking device A device for breaking rocks comprising a substantially vertical guide column which houses a weight for delivering an impact to a tool held within a cushioned tool holding structure that is itself supported from the guide column by a resilient recoil assem... | 07/10/2001 |
| 6003619 | Back driving automatic hammer A driver hammer for driving an elongated member into the earth and for extracting the member from the earth includes a hammer body and a forward driving anvil slidably mounted in the body that is engaged directly with the elongated member when the latter ... | 12/21/1999 |
| 5607022 | Concrete drop hammer attachment device A device removably attaches to a skid steer and is used for breaking up asphalt, concrete, etc. A hollow rod is suspended from the device, and a nipple provides liquid communication to the interior rod chamber of the hollow rod. A head is provided on a lo... | 03/04/1997 |
| 5445227 | Release mechanism for a hydraulic post driver A release mechanism for a hydraulic/pneumatic post driver is described. The post driver has a hammer and a guide for directing the hammer from a raised release position along a substantially vertical downward impact path. A hydraulically or pneumatically ... | 08/29/1995 |
| 5330011 | Free fall stroker apparatus and method A free fall stroker for raising and dropping a drop hammer for soils bearing testing or the like includes a housing through which a drop hammer cable extends from one side to the bottom thereof. A pair of guide pulleys guide the cable through the housing ... | 07/19/1994 |
| 5291955 | Hydraulic hammer The present invention is a self-contained hydraulic hammer which is mounted on a hydraulically mobile frame. The hydraulic hammer is capable of travelling in either forward or reverse directions and is provided with liftable weights to which a tool for di... | 03/08/1994 |
| 4977965 | Automatic drop hammer system Disclosed is a device for automatically and continuously lifting and dropping a drop hammer. The device has hydraulic and mechanical components which lift and drop the hammer and electromechanical components which sequence various actions and ensure that ... | 12/18/1990 |
| 4932985 | Rapper construction A rapper for use in vibrating parts of an electrostatic precipitator by utilizing an impact force. An anvil is connected to a part of an electrostatic precipitator, such as, a section of electrodes either discharge electrodes or collecting plates or elect... | 06/12/1990 |
| 4877091 | Augering apparatus and drilling rig A downcrowdable telescopic augering apparatus and drilling rig is disclosed that has a low overhead requirement and yet can drill large diameter holes ot great depths. The invention is especially useful for drilling foundation holes. One embodiment of the... | 10/31/1989 |
| 4852661 | Portable concrete hammer A portable concrete hammer including a wheeled carriage, a mast movable between a vertical operating position and a horizontal transport position, and an automatic ratchet drive that advances the concrete hammer over a concrete surface during the portion ... | 08/01/1989 |
| 4838363 | Rock-breaking apparatus Rock breaking apparatus includes a guide column within which a weight falls under gravity to strike a tool. A piece of shock-absorbing material is located at or near the base of said column such that it enables force to be transmitted from said weight to ... | 06/13/1989 |
| 4667746 | Mobile apparatus for driving different objects into the ground by impact A mobile apparatus for driving different objects into the ground by impact, comprising a carrier structure supporting a swinging element along which slides a mass whose movements are controlled by a cable. The swinging element has a tubular structure divi... | 05/26/1987 |
| 4653595 | Method and apparatus for remote release of hammer and follow block chain connection The present disclosure is directed to a hammer and follow block chain remote release device and method to eliminate the need of a human having to ride the pile driving leads until the follow block is separated from the hammer. This is attained by passing ... | 03/31/1987 |
| 4634311 | Pavement breaking apparatus An apparatus for impacting on a hard surface such as concrete so as to break up the hard surface. This apparatus comprises a frame having a bed and an upstanding rail assembly projecting from the bed, a drive shoe, a hammer means attached to the rail asse... | 01/06/1987 |
| 4405020 | Automatic drive hammer system An automatic drive hammer system, particularly adapted to use in the Standard Penetration Test, is mounted on a drill rig in such a way that it can be swung and translated to an on-hole working position. A hammer reciprocating mechanism is so mounted that... | 09/20/1983 |
