Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7311098 | Zero center of mass archery cam One preferred embodiment of the present invention provides a cam having an axle location for mounting the cam to an archery bow, where the center of mass of the cam is substantially coaxial with the axle location. Preferable the cam has an eccentric geometric rotati... | 12/25/2007 |
| 7188615 | Adjustable cam for a crossbow An adjustable cam for a crossbow has a main disk, a weight-adjusting block and a length-adjusting block. The main disk has two sides, a group of string hooks, a group of weight-selecting holes, and a group of length-selecting holes. The group of string hooks is form... | 03/13/2007 |
| 7143757 | Compound bow with cam arrangement An archery bow (B) having at least one draw force module (1a or 1b). The module includes a concentric bowstring (3) pathway (12a) and at least one eccentric cable (6a) pathway (7a) with a d... | 12/05/2006 |
| 7082937 | Archery bow and cam arrangement A cam for an archery bow is constructed comprising a body for guided entrainment of a bow string. The body accommodates an axle for mounting the body to the bow for rotation about an axis of the axle. At least one adjuster is carried by the body for adjustment betwe... | 08/01/2006 |
| 6994079 | Compound archery bow A compound archery bow includes a handle having at least one projecting limb, and a pulley mounted for rotation on the limb. Bow cable segments extend from the bow pulley, including a bowstring cable segment extending from a bowstring let-out groove on the pulley, a... | 02/07/2006 |
| 6990970 | Compound archery bow A compound archery bow includes a handle having projecting limbs. A first pulley is mounted for rotation around a first axis on a first of the limbs, and a second pulley is mounted for rotation around a second axis on a second of the limbs. A bow cable arrangement e... | 01/31/2006 |
| 6976484 | Zero center of mass archery cam One preferred embodiment of the present invention provides a cam having an axle location for mounting the cam to an archery bow, where the center of mass of the cam is substantially coaxial with the axle location. Preferable the cam has an eccentric geometric rotati... | 12/20/2005 |
| 6966312 | Single-cam compound bow with multiple idler wheels An archery compound bow having first and second opposed limbs. The bowstring rigging typically includes a power cam associated with the first limb, and a pair of idler wheels associated with the second limb. Drawing the bow by retracting the drawstring to rotate the... | 11/22/2005 |
| 6871643 | Eccentric elements for a compound archery bow A pulley arrangement for a compound archery bow (100) that combines the forgiveness and symmetry of a “dual cam” system with the positive draw stop (hard wall), enforced synchronization (or built-in timing) between opposite pulley assemblies, and high let... | 03/29/2005 |
| 6691692 | Adjustable cam for archery bows An adjustable cam for an archery bow. The adjustable cam is located at the end of one of the bow limbs. The other bow limb has an idler cam located at its end. The bowstring has a bowstring end attached to the adjustable cam. The bowstring passes over the... | 02/17/2004 |
| 6688295 | Pulley assembly for compound archery bows, and bows incorporating said assembly A pulley assembly for use in an archery bow includes an axle journal which defines a pivot axis about which a pulley body can rotate. The pulley body includes a first, a second and a third groove defined therein. Each groove defines a curve which extends ... | 02/10/2004 |
| 6666202 | Single-cam compound archery bow A single-cam compound archery bow includes a bow handle having projecting limbs. A control wheel is mounted for rotation about an axis at an end of one of the limbs, and has a single peripheral groove that extends around such axis. A power cam is mounted ... | 12/23/2003 |
| 6629522 | Compound bow having a limited freedom of movement between cojournaled cams A compound archery bow comprising a body having first and second flexible ends. A bowstring has at least a portion of itself trained about a rotational assembly and is anchored to a cam assembly. In addition, an anchor cable has a first cable end fixed to... | 10/07/2003 |
| 6575153 | Archery bows, archery bow cam assemblies and methods of adjusting an eccentric profile of an archery bow cam assembly In one aspect, the invention includes an archery bow cam assembly having a first body and a second body discrete from the first body. The first body defines a first portion of a sheave having an eccentric profile and the second body defines a second porti... | 06/10/2003 |
| 6516790 | Single-cam compound archery bow A single-cam compound archery bow that includes a bow handle having projecting limbs, a control wheel rotatably mounted on an end of one of the limbs, and a power cam rotatably mounted on the end of the other limb. The power cam includes a cam base and a ... | 02/11/2003 |
| 6415780 | Bearing system for compound archery bow A bearing support system for eccentric and idler pulleys used in archery compound bows. The support system allows use of bearings having reduced friction, including low cost ball bearing assemblies, and increases pulley stability by providing a wider bear... | 07/09/2002 |
| 6360735 | Eccentric for archery bow with let-off adjustment module An adjustable eccentric for a compound archery bow includes a let-off adjustment module that pivots between two let-off positions. Adjusting the module between a first let-off position and a second let-off position effectively changes the distance between... | 03/26/2002 |
| 6321736 | Round wheel cam An archery bow includes a handle portion, an upper limb supported by the handle portion and a lower limb supported by the handle portion. A top pulley is rotatably mounted upon the upper limb for rotation about a first axle. The top pulley includes a pull... | 11/27/2001 |
| 6257219 | Elastically mounted counter weight A rotating member for use with a compound bow, including a body having a rotation point for journaling the body to a bow limb, the body including a damping device for absorbing vibrational energy as the rotating member vibrates against a bow string when t... | 07/10/2001 |
| 6250293 | Adjustable archery bow cam A cam for a compound archery bow has an adjustable draw cam and a draw stop arm, each releasably and adjustably carried by the cam to permit rapid adjustment of the draw length and let-off characteristics of the cam without having to completely disassembl... | 06/26/2001 |
| 6247466 | Dual feed pivoting feed-out A rotationally mounted cam for use with an archery bow. The cam comprising a primary string feed-out, a secondary string feed-out and a string take-up. The primary string feed-out feeding out a predetermined amount of string when the cam rotates about an ... | 06/19/2001 |
| 6237582 | Archery bow with bow string coplanar with the longitudinal axis of the bow handle An archery bow comprises a handle portion, an upper limb supported by the handle portion and a lower limb supported by the handle portion. A top pulley is rotatably mounted upon the upper limb for rotation about a first axle. The top pulley includes a bow... | 05/29/2001 |
| 6112732 | Compound archery bow A compound bow carries eccentrics, each of which has a non-circular string groove with a geometric center removed from the axis of the eccentric and a take-up groove which is out of registration with the string groove about substantially the entire periph... | 09/05/2000 |
| 6105565 | Archery bows, and archery bow cam and weight systems In one aspect, the invention includes an archery bow construction comprising: a) a rotating member rotatably joined to a first limb; and b) a weight removably attached to the rotating member, the weight comprising at least two discrete components, the dis... | 08/22/2000 |
| 6082346 | Compound bow cams and modules A compound bow having a pair of cam modules or secondary cams with at least one cam module having a draw stop integral therewith to engage a harness string of the compound bow at the optimum draw length of the bowstring to prevent this optimum draw length... | 07/04/2000 |
| 6082347 | Single-cam compound archery bow A single-cam compound archery bow that includes a bow handle having projecting limbs, a control wheel rotatably mounted on an end of one of the limbs remote from the handle, and a power cam rotatably mounted on an end of the other limb also remote from th... | 07/04/2000 |
| 6067974 | Compound bow An compound archery bow has a riser with upper and lower limbs, a bowstring connecting outboard ends of the limbs, and synchronizing pulleys for ensuring equal flexing of the limbs. The upper and lower limbs each have an inner spring limb or power limb af... | 05/30/2000 |
| 6039035 | Elastically mounted counterweight for a cam or pulley A rotating member for use with a compound bow, including a body having a rotation point for journaling the body to a bow limb, the body including a damping device for absorbing vibrational energy as the rotating member vibrates against a bowstring when th... | 03/21/2000 |
| 6035841 | Archery bows, and archery bow cam and weight systems In one aspect, the invention includes an archery bow construction comprising: a) a rotating member rotatably joined to a first limb; and b) a weight removably attached to the rotating member, the weight comprising at least two discrete components, the dis... | 03/14/2000 |
| 6032660 | Bow with modified braking A bow with modified braking uses flexible bow limbs attached above and below a bow handle. The bow limbs have wheels that guide a bow string and form pulleys. The pulleys mechanically assist in holding the bow limbs when the bow string is drawn. A remotel... | 03/07/2000 |
| 5996567 | Compound bow with a counteracting weight An inventive cam body which includes a counteracting weight which generates a net counteracting centrifugal force to act against the forward force of the bow.... | 12/07/1999 |
| 5975067 | Efficient power cam for a compound bow A base cam/power cam assembly for a compound bow is disclosed, the base cam/power cam assembly comprising: a) a base cam for letting out a draw cable when the assembly rotates as the bow is drawn, the base cam having an oblong shape with a major axis and ... | 11/02/1999 |
| 5960778 | Compound archery bow A compound bow carries eccentrics, each of which has a non-circular string groove with a geometric center removed from the axis of the eccentric and a take-up groove which is out of registration with the string groove about substantially the entire periph... | 10/05/1999 |
| 5934265 | Single-cam compound archery bow A single-cam compound archery bow that includes a bow handle from which bow limbs project, a control wheel rotatably mounted on one end of one limb and a power can rotatably mounted at an opposing end of the other limb. A power cable segment is anchored a... | 08/10/1999 |
| 5890480 | Dual-feed single-cam compound bow A cam is eccentrically journaled at one end of a compound archery bow and a pulley is journaled at the other end of the bow. A cable passes around the pulley to form a bowstring section and a second cable section, both sections forming a dual feed single ... | 04/06/1999 |
| 5881705 | Compound bow cable tension adjuster Apparatus for adjusting the angular position of the pulleys in a compound bow is mounted on each of the pulleys, not between the pulleys. The apparatus consists of either rotatable or slidable elements which are mounted on the pulleys. The tension cables ... | 03/16/1999 |
| 5809982 | Compound bow with counteracting weight An inventive cam body which includes a counteracting weight which generates a net counteracting centrifugal force to act against the forward force of the bow.... | 09/22/1998 |
| 5791323 | Pulley with positionable spool for a compound archery bow A pulley assembly for a compound bow is provided with a take-up of spool configuration to receive a segment of a tensionable bow member wound thereabout. The take-up is engageable with the pulley proper member in a manner preventing relative movement betw... | 08/11/1998 |
| 5791322 | Dual-feed single-cam compound bow A cam is eccentrically journaled at one end of a compound archery bow and a pulley is journaled at the other end of the bow. A cable passes around the pulley to form a bowstring section and a second cable section, both sections forming a dual feed single ... | 08/11/1998 |
| 5782229 | Single cam compound bow with interchangeable cams for varying draw length A cam assembly for a single cam bow provides replaceable cable sheaves. By selecting different cable sheaves the draw length of the bow may be altered while the bow is strung. The draw length can be further fine tuned by providing differentially spaced po... | 07/21/1998 |
