Patent application number | Description | Published |
20110084123 | Apparatus for Secure Postal and Parcel Receipt and Storage - A receptacle for secure mail and parcel receipt and storage. The receptacle includes a top which provides a roof for the receptacle, a base, and a housing connected to the top and the base. The housing includes an upper compartment into which mail is first placed, a lower compartment into which mail is deposited from the upper compartment, a front door, located on a front of the receptacle, which is opened to provide access to the upper compartment and through which mail is placed into the upper compartment, a trap door, operatively connected to the front door, in the upper compartment, and an access door that includes a lock. The trap door rests in an open position when the front door is closed, allowing communication between the upper and lower compartments. The trap door is moved to a closed position by the opening of the front door, thereby preventing access to the lower compartment from the upper compartment. The trap door returns to the open position when the front door is closed, depositing any mail placed in the upper compartment into the lower compartment. The access door is unlocked and opened to provide access to the lower compartment, whereby mail deposited and stored in the lower compartment may be retrieved through the access door. | 04-14-2011 |
20110259950 | APPARATUS FOR SECURE POSTAL AND PARCEL RECEIPT AND STORAGE - A receptacle for secure mail and parcel receipt and storage. The receptacle includes a top which provides a roof for the receptacle, a base, and a housing connected to the top and the base. The housing includes an upper compartment into which mail is first placed, a lower compartment into which mail is deposited from the upper compartment, a front door, located on a front of the receptacle, which is opened to provide access to the upper compartment and through which mail is placed into the upper compartment, a trap door, operatively connected to the front door, in the upper compartment, and an access door that includes a lock. The trap door rests in an open position when the front door is closed, allowing communication between the upper and lower compartments. The trap door is moved to a closed position by the opening of the front door, thereby preventing access to the lower compartment from the upper compartment. The trap door returns to the open position when the front door is closed, depositing any mail placed in the upper compartment into the lower compartment. The access door is unlocked and opened to provide access to the lower compartment, whereby mail deposited and stored in the lower compartment may be retrieved through the access door. | 10-27-2011 |
Patent application number | Description | Published |
20090318915 | Electrosurgical generator and system - An electrosurgical system has an electrosurgical generator with a multiple-phase RF output stage coupled to a multiple-electrode electrosurgical instrument. The instrument has three treatment electrodes each of which is coupled to a respective generator output driven from, for instance, a three-phase output transformer. Continuous RF output voltage waveforms are simultaneously delivered to respective generator outputs at the operating frequency, each waveform being phase-displaced with respect to the other waveforms. The magnitude of the RF output voltage waveform delivered to at least one of the generator outputs is sufficient to cause tissue vaporisation at the respective treatment electrodes when the system is used for tissue treatment. Also disclosed is an electrosurgical generator in which the output transformer has windings forming at least three phases, the transformer core being constructed to provide at least three magnetic circuits each of which is inductively linked to the windings of at least two of the three phases. | 12-24-2009 |
20100114090 | ELECTROSURGICAL GENERATOR AND SYSTEM - An electrosurgical system has an electrosurgical generator with a multiple-phase RF output stage coupled to a multiple-electrode electrosurgical instrument. The instrument has three treatment electrodes each of which is coupled to a respective generator output driven from, for instance, a three-phase output transformer. Continuous RF output voltage waveforms are simultaneously delivered to respective generator outputs at the operating frequency, each waveform being phase-displaced with respect to the other waveforms. The magnitude of the RF output voltage waveform delivered to at least one of the generator outputs is sufficient to cause tissue vaporization at the respective treatment electrodes when the system is used for tissue treatment. Also disclosed is an electrosurgical generator in combination with an instrument having both bipolar coagulation electrodes and a remote return pad, the generator including means for varying the RF voltage outputs to vary the relative preponderance of bipolar and monopolar coagulation. | 05-06-2010 |
20100121320 | Electrosurgical system and an electrode assembly for an electrosurgical system - An electrosurgical system includes a first unit including a generator, and a second unit including an electrode assembly, the second unit being detachably connectible to the first unit such that radio frequency power can be conveyed to the electrode assembly, wherein the second unit firstly includes a passive electrical identification component having a parameter of a finite non-zero value indicative of a characteristic of the electrode assembly, and the second unit additionally includes an output circuit adapted to generate an identifiable characteristic signal, the first unit firstly including a sensing circuit for determining the value of the electrical identification component so as to identify the second unit when the second unit is connected to the first unit, and the first unit additionally including means for receiving the identifiable characteristic signal from the output circuit when the second unit is connected to the first unit. | 05-13-2010 |
20100137854 | Electrosurgical generator and system - An electrosurgical system has an electrosurgical generator with a multiple-phase RF output stage coupled to a multiple-electrode electrosurgical instrument. The instrument has three treatment electrodes each of which is coupled to a respective generator output driven from, for instance, a three-phase output transformer. Continuous RF output voltage waveforms are simultaneously delivered to respective generator outputs at the operating frequency, each waveform being phase-displaced with respect to the other waveforms. The magnitude of the RF output voltage waveform delivered to at least one of the generator outputs is sufficient to cause tissue vaporisation at the respective treatment electrodes when the system is used for tissue treatment. Also disclosed is an electrosurgical generator in combination with a cutting forceps instrument, such that the coagulation and cutting of the tissue may be performed simultaneously. | 06-03-2010 |
20120083779 | ELECTROSURGICAL SYSTEM - A method of controlling an electrosurgical system is described, the system including an electrosurgical generator and an electrosurgical instrument connected to the generator by means of a cable. A radio frequency signal is supplied to the electrosurgical instrument at an operating frequency, and the voltage of the radio frequency signal is monitored at a frequency corresponding to the frequency of a resonant circuit established by the electrosurgical instrument together with the cable. The monitored voltage is capable of indicating the initiation of arcing from the electrosurgical instrument, such that the voltage of the radio frequency signal can be adjusted in response to the monitored voltage at the resonant frequency. The magnitude of the monitored voltage is an indication of the degree of arcing. An electrosurgical system including an arc detector is also disclosed. | 04-05-2012 |