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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 7329211 | Backswing release handle An exerciser uses a handle and bracket combined with a resistance that opens the bracket away from the handle to facilitate wrist cocking in a backswing region of a simulated swing. As the handle moves downward and forward toward a hitting region of the swing, the b... | 02/12/2008 |
| 7254893 | Blade quick removal device for a handsaw A blade quick removal device includes an arcuate frame integrated with a front handle and a rear handle, a first hook bar under the front handle, an oscillatory second hook bar nearby the rear handle for adjustably retaining the saw blade thereon and a locking membe... | 08/14/2007 |
| 7246444 | Cutting tool with guide member clamping means A cutting tool that improves operability by facilitating operation of a lever for operating a clamp mechanism of a guide member is provided. A clamp mechanism is constituted by a clamp pin that protrudes its distal end to the outside of the blade case while penetrat... | 07/24/2007 |
| 7241478 | Process for coating three-dimensional substrates with thin organic films and products The present invention relates to an apparatus and process for producing a thin organic film on a substrate using an ultrasonic nozzle to produce a cloud of micro-droplets in a vacuum chamber. The micro-droplets move turbulently within the vacuum chamber, isotropical... | 07/10/2007 |
| 7210234 | Bow saw structure A bow saw structure including a handle, an adjustment unit and a fast installation/detachment unit. The handle has a grip section for a user's hand to extend through and hold. An upper side of the grip section is formed with a tunnel in which an L-shaped support mem... | 05/01/2007 |
| 7174644 | Handsaw with blade storage and auxiliary blade A saw and/or saw frame including: an elongate substantially rigid back member and a swing arm pivotally connected to the back member so as to be rotatable between an extended position and a storage position; a handle with a first blade mount; the swing arm includes ... | 02/13/2007 |
| 7174643 | Hand tool The invention provides a frame (12) of a hack-saw (10) and, particularly, the handle formation (14), defines shoulder formations (22) that define a linear edge (24) on opposite sides of the extension formation (16), the oper... | 02/13/2007 |
| 7007394 | Two-position quick-change saw A two-position, quick-change hacksaw consists of a back member, handle structure adjacent a rearward end portion of the back member, and a swing arm adjacent the forward end. The free end of the swing arm and the forward end portion of the back member have coplanar ... | 03/07/2006 |
| 6925720 | Hacksaw with blade tension adjustment mechanism A hacksaw includes an elongated blade, a frame, and a blade tension adjustment mechanism. The blade tension adjustment mechanism includes a lever constructed and arranged to be pivotally moved between (1) a blade tensioning position so as to tension the blade, and (... | 08/09/2005 |
| 6820341 | Hacksaw having improved blade storage A hacksaw in which one or more perishable hacksaw blades are conveniently stored and accessed. The hacksaw includes a beam, which defines a blade storage cavity, a handle and a fastening member that is employed to fixedly fasten the beam to the handle. The fastening... | 11/23/2004 |
| 6820340 | Low profile hacksaw A low profile hacksaw comprising an elongated blade having a cutting edge. A rigid I-beam frame member has a forward end portion and a maximum height portion. Preferably, the maximum height portion is located at the rear end of the frame member, but it may be locate... | 11/23/2004 |
| 6772522 | Quick disassembly hacksaw A quick disassembly hacksaw includes an inverse U-shaped frame having a flexible triangular front handle on fore end, a rear handle on rear end, a front tube and a rear tube respectively disposed under the fore end and rear end, an adjusting mechanism disposed in th... | 08/10/2004 |
| 6729030 | Hacksaw having easily operated blade tension device A hacksaw includes a frame having a chamber formed in a rear handle, an arm pivotally secured to the handle for tensioning a saw blade and having a rear oblong hole, a lever pivotally secured to the handle, and a tension rod pivotally secured to the lever and having... | 05/04/2004 |
| 6619174 | Quick release saw blade chuck for a scroll saw A saw blade chuck includes a blade retaining unit, a biasing unit, and a pushing unit. The blade retaining unit is mounted pivotably on a driving arm of a scroll saw. The biasing unit and the pushing unit are disposed on opposite sides of and act upon the... | 09/16/2003 |
| 6606795 | Two-position quick-change saw A two-position, quick-change hacksaw consists of a back member, handle structure adjacent a rearward end portion of the back member, and a swing arm adjacent the forward end. The free end of the swing arm and the forward end portion of the back member hav... | 08/19/2003 |
| 6457244 | Structure of a hacksaw A structure of a hacksaw includes a frame which is combined by a fore part and a rear part, an adjustable mechanism under the fore part connected to one end of the blade for adjusting the tilt angle of the blade, a positioning mechanism under the rear par... | 10/01/2002 |
| 6298564 | Portable hand saw The present invention is a lightweight collapsible hand saw for use when camping, hiking or otherwise. The saw breaks down and can be consolidated into a single tubular shape, with all of the components fitting inside the tube. In the functional configura... | 10/09/2001 |
| 6266887 | Hacksaw and method for making the same The present invention relates to hacksaws. One aspect of the invention relates to a hacksaw with an overmolded frame member wherein the overmolded material has an I-beam configuration. Another aspect of the invention relates to an improved blade tensionin... | 07/31/2001 |
| 6230412 | Frame of hacksaw A hacksaw including a frame, a handle, an end piece, and a blade. The frame has an arcuate support rod which is provided at one end thereof with a protrusion and a plurality of recesses, and at the other end thereof with a protrusion and a plurality of re... | 05/15/2001 |
| 6158131 | Collapsible saw A collapsible saw has a mechanism for releasably tensioning and locking a saw blade into position while also conferring lateral support for the blade, namely a cam lock mechanism. Additionally, a long channel member, a short member, and a saw blade are ea... | 12/12/2000 |
| 6134791 | Hacksaw having blade tension adjusting mechanism A hacksaw includes a frame and a handle. A lever is pivotally coupled to the handle. A link has a rear end pivotally secured to the bottom portion of the lever. A blade is secured between the link and the frame and is secured in place when the lever is ro... | 10/24/2000 |
| 6098294 | Hack saw An improved hacksaw for rigorous use has two embodiments, one with a high available cutting depth exceeding five inches, and another with a low clearance with attendant low cutting depth. The saw is easily constructed of inexpensive materials and has a bl... | 08/08/2000 |
| 6079109 | Metal-cutting saw bow frame including a device for tensioning of the blade The frame of a metal-cutting saw of the one-piece, hacksaw type includes a bow (6) extended at its rear end by a pistol grip (3) and a protective branch (7) and at its front end by a branch (9) which at its end includes an attachment stud (14) for receivi... | 06/27/2000 |
| 6070330 | Hacksaw having cam-actuated blade tensioning mechanism A hacksaw of the type utilizing an elongated blade maintained tension between respective legs of the saw frame includes a cam-actuated blade tensioning mechanism. One leg of the saw frame includes a fixed blade pin for receipt through a mounting hole defi... | 06/06/2000 |
| 5873170 | Hand saw A saw is described as having an adjustable handle wherein the angle of the handle in relation to the longitudinal axis of the saw blade and blade holder is rotatably adjustable.... | 02/23/1999 |
| 5870829 | Portable powered hack-saw A hack-saw that consists of a powered motor encased in a housing unit with a handle for gripping by the operator. Extending out from the top of the handle is an elongated bar which runs out forward from the motor housing unit to which depends a leg parall... | 02/16/1999 |
| 5850699 | Severing or cutting tool A tool which in one aspect is applicable as severing or cutting apparatus including a coupling member for engagement with an elongated extension member such as a swimming pool pole and a blade support frame mounted to the coupling member for movement rela... | 12/22/1998 |
| 5826344 | Hacksaw having cam-actuated blade tensioning mechanism A hacksaw of the type utilizing an elongated blade maintained tension between respective legs of the saw frame includes a cam-actuated blade tensioning mechanism. One leg of the saw frame includes a fixed blade pin for receipt through a mounting hole defi... | 10/27/1998 |
| 5768788 | Hacksaw with improved blade tension mechanism A hacksaw includes a blade tensioning mechanism attached to the lower portion of the handle and connected to the blade through a blade holder. The end of the blade holder is observed via a tension indicator window at the lower portion of the handle, and t... | 06/23/1998 |
| 5722173 | Saw blade adjusting mechanism A saw includes a handle having a channel formed in the upper portion for slidably receiving a beam. An arm is secured to one end of the beam. Two rotary members are pivotally secured to the handle and the arm for supporting a saw blade. A knob is slidably... | 03/03/1998 |
| 5706585 | Foldable hacksaw A hacksaw includes a beam having two ends receivable in a tube and a handle. The tube and the handle each has an orifice and an aperture formed in one end for engaging with the ends of the beam and for maintaining the beam in a vertical position relative ... | 01/13/1998 |
| 5673488 | Saw frame A saw frame having a bow shape has a blade carrier adapter at one end and a tensioner at the other end, between which a blade is tensioned in use. The tensioner is constructed for obtaining a predetermined tension in the blade independently of the manufac... | 10/07/1997 |
| 5590473 | Bow saw A bow saw includes a saw blade seat, a handle and at least one saw blade. The handle is pivotally connected with one end of the saw blade seat. The saw blade seat axially extends into one end of the handle by a certain length. The saw blade pivotally conn... | 01/07/1997 |
| 5471752 | High tension hacksaw frame An improved blade tensioning mechanism carried by a hacksaw handle is disclosed. It consists of a longitudinally extending frame member with a handle attached at one end and a pivoting lever attached at the end opposite the handle. A blade anchoring pin, ... | 12/05/1995 |
| 5442857 | Portable powered hack-saw A hack-saw that consists of a powered motor encased in a housing unit with a handle for gripping by the operator. Extending out from the top of the handle is an elongated bar which runs out forward from the motor housing unit to which depends a leg parall... | 08/22/1995 |
| 5388333 | Saw blade adjusting mechanism A saw blade adjusting mechanism, which includes a first tightening up rod and a second tightening up rod fastened to the frame assembly of a hack saw at two opposite ends by nuts to hold the saw blade, a rotary adjusting knob mounted around the first tigh... | 02/14/1995 |
| 5313709 | Attachment for converting a reciprocating power tool into power driven hack saw A hack saw attachment for converting a power driven saber saw or other reciprocable tool to a power driven hack saw includes a plate having a hack saw frame fixed perpendicular thereto. The sole plate of a saber saw is provided with openings for releasabl... | 05/24/1994 |
| 5303478 | 220 volt a.c. cord-operated, hand-held portable hack-saw This device consists of an encased, electrically powered motor housing unit with a first handle parallel in line to the height of the unit. Extending out from the top of the handle is a metal bar one inch in diameter which runs out forward from the motor ... | 04/19/1994 |
| 5111583 | Bladed implement A bladed implement such as a knife, has a flexible blade extending from a handle. The blade can be rigidified for use by a series of slides which run along a slot in the blade and which can be forced into and held in end to end contact by an operating mec... | 05/12/1992 |
| 5063675 | Low profile hacksaw A hand held saw for use with hacksaw blades with a low profile frame including a reduced height support post and cross support member attached to the post a short distance from the blade. A screwdriver-type handle is attached at a right angle to the post ... | 11/12/1991 |
