Sexual stimulation device

A sexual stimulation device which provides simultaneous stimulation to male and female partners during intercourse includes a hollow elastomeric shaft portion dimensioned to receive a penis and for vaginal insertion. The shaft includes a longitudinal rib forming an interior channel, the rib functioning to stiffen the shaft and the channel providing sufficient resilience to allow insertion and removal of a penis. The shaft terminates at a closed end in a hemispherical tip and at an opposite open end in a pair of spaced annular retaining rings. A plurality of raised rings spaced axially along the shaft enhance the pleasure of the female partner. The retaining rings provide a resilient retaining force to maintain the device in position during intercourse. An electric motor with an eccentric weighted flywheel mounted in a chamber extending between the annular rings provides vibratory stimulation. An electrical wire for powering the vibratory motor extends through a conduit connecting the chamber to an attached housing enclosing rechargeable batteries. The housing also includes a second motor operably connected for rotating caged massage balls positioned to provide simultaneous stimulation to a female partner during intercourse. An elastomeric shell encloses and substantially seals the housing, while still allowing user actuation of two HIGH-LO-OFF switches providing independent control of the two motors and connection of an AC adapter for recharging the batteries. In an alternative embodiment, the hollow shaft may be omitted.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The application relates to the field of sexual stimulation devices.

2. Description of the Related Technology

U.S. Pat. No. 4,574,791 which issued to M. Mitchener on Mar. 11, 1986 discloses a muscle-toning device including a vaginal insert member connected by a flexible or stretchable cable to an exteriorly disposed support body.

U.S. Pat. No. 5,690,603 which issued to M. Kain on Nov. 25, 1997 discloses an erogenic stimulator designed to provide simultaneous stimulation to a couple.

U.S. Pat. No. 6,053,881 which issued to A. Boodramsingh et al. on Apr. 25, 2000 discloses an ankle massaging device constructed in the shape of a “U” with each end provided with an internal battery powered vibratory electric motor to provide a massage to opposite sides of a users ankle.

U.S. Pat. No. 6,190,307 which issued to C. Tsai on Feb. 20, 2001 discloses an erotic implement adapted for vaginal insertion and including a vibrator and a massage unit consisting of battery powered rotating beads.

U.S. Pat. No. 7,341,566 which issued to S. Nan on Mar. 11, 2008 discloses a massage apparatus having a battery powered massage device controlled by a remote control panel connected by a wire.

U.S. Patent Application Publication No. 2004/0230093 published Nov. 18, 2004 discloses a stimulation aid comprising a U-shaped implement which may be vibrated or pulsed by an imbedded electric motor.

U.S. Patent Application Publication No. 2008/0009775 published Jan. 10, 2008 discloses an electro-mechanical sexual stimulation device having a pair of internal battery powered motors.

U.S. Patent Application Publication No. 2008/0221387 published Sep. 11, 2008 discloses a vibrating toothbrush attachment for use as a sexual aid or for muscular stimulation. The device includes an oscillating tip member having knob-like protrustions.

U.S. Design patent No. D517,217 which issued to J Zou et al. on Mar. 14, 2006 discloses an ornamental design for a generally U-shaped Wand Massager.

The entire disclosure of each of the aforementioned patents and published patent applications is incorporated herein by this reference thereto.

SUMMARY OF THE INVENTION

A sexual stimulation device which provides simultaneous stimulation to male and female partners during intercourse includes a hollow elastomeric shaft portion dimensioned to receive a penis and for vaginal insertion. The shaft includes a longitudinal rib forming an interior channel, the rib functioning to stiffen the shaft and the channel providing sufficient resilience to allow insertion and removal of a penis. The shaft terminates at a closed end in a hemispherical tip and at an opposite open end in a pair of spaced annular retaining rings. A plurality of raised rings spaced axially along the shaft enhances the pleasure of the female partner. The retaining rings provide a resilient retaining force to maintain the device in position during intercourse. An electric motor with an eccentric weighted flywheel mounted in a chamber extending between the annular rings provides vibratory stimulation. An electrical wire for powering the vibratory motor extends through a conduit connecting the chamber to an attached housing enclosing rechargeable batteries. The housing also includes a second motor operably connected for rotating caged massage balls positioned to provide simultaneous stimulation to a female partner during intercourse. An elastomeric shell encloses and substantially seals the housing, while still allowing user actuation of two HIGH-LO-OFF switches providing independent control of the two motors and connection of an AC adapter for recharging the batteries. In an alternative embodiment, the hollow shaft may be omitted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S)

With reference to the drawings, and in particular toFIGS. 1 through 10, a sexual stimulation device10according to a first preferred embodiment of the invention will now be described. The device10includes a generally cylindrical hollow shaft12preferably formed from a silicone material and having a plurality of raised circular ridges14spaced evenly along a longitudinal axis of the shaft12. The shaft12terminates at a distal end portion in a hemispherical tip portion16. An elongated rib18extends axially along a bottom portion of the shaft12forming an interior channel20within the shaft12. The rib18functions to stiffen the shaft12, while the channel affords sufficient flexibility to allow insertion and removal of a penis. An opposite end of the shaft12terminates in a pair of axially spaced radially enlarged annular retaining rings22and24connected by a reduced diameter cylindrical portion26. The retaining rings, by virtue of the channel20, provide a resilient frictional engagement of the device with a penis sufficient to maintain the device in position during intercourse. A central circular aperture in an annular end face30communicates with the generally cylindrical hollow interior28of the shaft12.

A hole32formed in the annular end face30communicates with a cylindrical chamber34extending transversely between the retaining rings22and24and having a vibration producing element36disposed therein. The vibration producing element36is encapsulated within a mating first capsule shell38and a second capsule shell40. In a preferred embodiment of the invention, the vibration producing element36consists of a small electric motor having an eccentric flywheel37mounted for rotation on an output shaft of the motor. An electrical cable or wire42connected to the vibration producing element36extends through a conduit46and into the tubular sheath44surrounding the encapsulated vibration producing element36and received within the chamber34. The sheath44is preferably formed from an elastomeric material which allows sufficient compression for insertion in close conforming engagement within the chamber34. An opposite end of the conduit46terminates in a reinforced grommet region48merging smoothly with a first elastic skin portion50. The first elastic skin portion50includes an upwardly projecting raised region52and a first seal portion54(seeFIG. 7) configured for mating engagement with a second seal portion64of a second elastic skin portion56. The second elastic skin portion56includes an upwardly projecting raised region58including a first switch dimple60and a second switch dimple62. The elastic skin portions are preferably formed from a silicone material with a durometer of Shore A 60 in the range of 0.0625 inch to 0.25 inch thick with a durometer of The conduit46is preferably formed from a more rigid material such as a Shore A20 durometer silicone material.

The first skin portion50and second skin portion56mate in close conforming sealed relationship along an arcuate junction66and function to provide an enclosure for a housing formed by mating first68and second70housing shell portions. The housing shell portions68and70are formed with respective peripherally extending shoulders72and74such that the shell portions68and70snap together in a close conforming juxtaposed relationship. A first arcuate notch76formed at one end of the shell portion68receives the electrical wire42there through and a second arcuate notch at an opposite end of the shell portion68forms a charging port78adapted to receive a DC output plug of a conventional AC adapter (not shown) for the purpose of recharging a pair of batteries80and82.

Spaced battery brackets84,86,88, and90secure the batteries80and82within the housing and include respective pairs of pins92-94,96-98,100-102, and104-106which extend through a plurality of cooperating apertures provided through a circuit board108, as shown inFIG. 10. A jack110connected to the circuit board108engages the DC output plug of a conventional AC adapter for charging the batteries80and82.

A first three position, HI-LO-OFF micro switch112includes a button portion disposed in alignment with the switch dimple60. To operate the switch, a user pushes their finger into the dimple60in the cover56, which causes a leaf spring flap116to be deformed inwardly, actuating the switch112. When a user releases the pressure of their finger, the spring flap116springs back upwardly, out of engagement with the switch. In a similar manner a second three position HI-LO-OFF micro switch114cooperates with the switch dimple62and a second leaf spring flap118

The sexual stimulation device10includes a mechanism disposed within the housing for providing massage stimulation using rotating balls120,122,124,126constrained for rotation within ball cups130,132,134, and136formed on a ring gear128. The ring gear128includes a sleeve138which receives a bearing140which mounts the ring gear128for rotation about an axle141extending downwardly from housing shell70, as shown inFIG. 6. A ball retaining plate139has four circumferentially spaced holes dimensioned to allow only partial passage of the balls there through. The retaining plate139includes upwardly projecting pins140,142,144, and146which engage complementary apertures formed in the ring gear128, such that when assembled, the balls are captured for rotation within the ball cups. A circular hole137is formed in the floor of the housing shell68exposing bottom portions of the balls into contact with a bottom portion of the elastic skin50. An annular ledge or shoulder141engages a peripheral edge portion of the retaining plate139, maintaining the plate139inside the housing shell68. Positioning of the rotating massage balls in spaced relation to the shaft12in the orientation shown inFIG. 6affords stimulation to the female partner during intercourse. A pinion gear148driven by a motor150drives the ring gear128and captures balls120,122,124, and126in rotation. A bracket152secures the motor in position within the housing. Support posts154,156,158receive channel screws and serve to secure the housing shells68and70together.

With reference now toFIGS. 11 and 12, a sexual stimulation device10′ according to a second preferred embodiment of the invention is constructed identically as described above, with the exception that the shaft12is omitted. In this embodiment, a male inserts his penis through the opening28provided through the retaining rings22and24. A condom may also be worn.

With reference toFIG. 13, the sexual stimulation device according to both the first10and second10′ embodiments of the present invention preferably includes a conventional AC adapter to be plugged into an ordinary electrical outlet by a user for recharging purposes. The AC adapter is connected to a charging circuit operative in a conventional manner to charge conventional rechargeable batteries80and82. In use, a user selectively depresses either or both of the three position momentary contact switches112and114to switch the motors36and150to high, low, or off speeds. This function is preferably performed by a microprocessor200in conjunction with a solid state voltage regulator and power supply circuit300operative to provide appropriate voltages to the motors36and150depending upon the sensed inputs from the switches112and114to the microprocessor200.